Coal gas, water gas, producer gas and similar gases, other than petroleum gases and other gaseous hydrocarbons

1. Scope and Applicability

This PCR covers manufacture or recovery of one origin-qualified coal, water or producer gas at a measured delivery gate, excluding petroleum gas and natural gas. Distinguish air/oxygen/steam gasification, coal carbonisation and industrial recovered gases. For a coke-oven, distribution-gasworks or recovered steel-gas dataset, the corresponding narrower PCR supplies origin-specific upstream burden and treatment rules; do not create an additional gasification inventory for those origins. The gasification block here applies only to actual solid-feed gasification. Purification, storage and compression occur only where physically performed. A gas burned on site without a measured exported fuel transfer is a fuel input to heat/power production rather than a gas-product supply. netl-gasification-2002, un-energy-2024

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.ores-and-minerals-electricity-gas-and-water.electricity-town-gas-steam-and-hot-water.coal-gas-water-gas-producer-gas-and-similar-gases-other-than-petroleum-gases-and-other-71d75228
classification_refs	CPC 3.0:17200
covered_products	One identified non-petroleum manufactured or recovered fuel gas
excluded_products	Natural gas; refinery gas; petroleum hydrocarbon gases; standalone hydrogen; unmetered heat-only production
representative_product	Manufactured fuel gas at the declared gate
production_route	Solid-feed gasification; Parent-process raw-gas recovery; Gas cleaning and conditioning; Metered storage and delivery
market_state	Dry gas at a declared origin, composition, pressure and metered gate

Subtype methodology selection

Origin	Applicable PCR
Coke-oven origin	pcr.ores-and-minerals-electricity-gas-and-water.electricity-town-gas-steam-and-hot-water.coke-oven-gas
Distribution gas-works origin	pcr.ores-and-minerals-electricity-gas-and-water.electricity-town-gas-steam-and-hot-water.gas-works-gas-and-other-manufactured-gases-for-distribution
Recovered industrial gas origin	pcr.ores-and-minerals-electricity-gas-and-water.electricity-town-gas-steam-and-hot-water.recovered-gases

Apply the relevant subtype to its actual origin; preserve its parent-process and provider boundary. A subtype reference does not add a second gasifier, a second parent burden or an avoided-fuel credit. Other solid-feed gasification uses the conditional gasification block and actual feed identity below.

3. Reference Flow

Field	Value
What	Supply origin- and composition-qualified fuel gas as a material/energy carrier
How much	1 kg
How well	site/year; origin and subtype; feedstock; gasifying agent; dry/wet basis; gas composition; pressure and temperature; density; net calorific value; parent burden allocation; cleaning technology; gate; own-use and losses; compressibility and gas-volume reference conditions; fossil/biogenic carbon share; applicable subtype PCR
How long or cycle	One gate supply within a declared production period
reference_flow_link	final_product

Field	Value
Reference amount	1
Reference product flow	Manufactured fuel gas at the declared gate
Reference flow property	Mass 93a60a56-a3c8-11da-a746-0800200b9a66
Reference unit group	Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
Reference unit	kg
Required qualifiers	site/year; origin and subtype; feedstock; gasifying agent; dry/wet basis; gas composition; pressure and temperature; density; net calorific value; parent burden allocation; cleaning technology; gate; own-use and losses; compressibility and gas-volume reference conditions; fossil/biogenic carbon share; applicable subtype PCR

Declare all qualifiers in dataset metadata or reference-flow comments. The representative identity is usable only for its confirmed product state, geography and property; resolve a distinct flow for incompatible variants. It does not impose a default product composition.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_basis	final_product	Mass	kg	D is the positive accepted net gate-output total in kg. Exclude packaging and cancelled internal transfers. cp_output records D; every card uses per 1 kg reference flow.
conversion	utility and material rows	Declared row property	kg; m3; MJ	Retain raw readings. Electricity: 1 kWh = 3.6 MJ. Mass/volume conversion requires measured density, temperature and applicable pressure; retain water content and active chemical fraction.
category_balance	production	Mass	kg	Close dry gas mass and carbon balances using measured feed carbon, product composition, tar/char carbon, combustion and emissions. Record moisture/steam separately. Gas mass equals corrected volume times measured composition-dependent density at the same reference conditions. A producer-gas heating value or density cannot substitute for water gas, coke-oven gas or recovered gas. Cancel internal recycled gas and cooling-water loops.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Purchased solid feed for gasification, or burden-bearing raw gas from a separately characterized carbonisation or industrial parent process
starting_condition_role	Resource or supplied feed; declare which
product_classification_scope	One identified non-petroleum manufactured or recovered fuel gas
recursive_input_rule	Purchased same-category material carries a distinct supplier dataset; internal recycling is a balance observation, not a new external input or credit.
upstream_dataset_requirement	Link feed, electricity, fuels, chemicals, infrastructure and waste-management burdens; disclose any missing coverage.
disclosure	site/year; origin and subtype; feedstock; gasifying agent; dry/wet basis; gas composition; pressure and temperature; density; net calorific value; parent burden allocation; cleaning technology; gate; own-use and losses; compressibility and gas-volume reference conditions; fossil/biogenic carbon share; applicable subtype PCR

rule_id	Applies to	Rule	source_ids
boundary_operations	site	This PCR covers manufacture or recovery of one origin-qualified coal, water or producer gas at a measured delivery gate, excluding petroleum gas and natural gas. Distinguish air/oxygen/steam gasification, coal carbonisation and industrial recovered gases. For a coke-oven, distribution-gasworks or recovered steel-gas dataset, the corresponding narrower PCR supplies origin-specific upstream burden and treatment rules; do not create an additional gasification inventory for those origins. The gasification block here applies only to actual solid-feed gasification. Purification, storage and compression occur only where physically performed. A gas burned on site without a measured exported fuel transfer is a fuel input to heat/power production rather than a gas-product supply.	netl-gasification-2002, un-energy-2024
boundary_partition	all exchanges	Include actual conditioning, storage, handling and pollution controls through the declared gate. Account for attributable construction and closure with a disclosed lifetime-output basis or justified exclusion and sensitivity. Separate purchased fuel supply from foreground combustion and purchased treatment from site releases.
boundary_completeness	inventory	Cards define individual likely exchanges and route conditions, not an exhaustive site audit. Add each actual absent chemical, waste, resource, land transformation and pollutant as its own row. Absence, measured zero and unknown must be distinguished.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
gasification	Solid-feed gasification	conditional	Air/oxygen/steam gasification route	Foreground production	per 1 kg reference flow
recovery	Parent-process raw-gas recovery	conditional	Carbonisation or industrial by-product gas route; apply subtype PCR	Foreground production	per 1 kg reference flow
cleanup	Gas cleaning and conditioning	conditional	Cleaning actually performed	Foreground production	per 1 kg reference flow
delivery	Metered storage and delivery	required	All declared sites	Foreground production	per 1 kg reference flow

Process: Solid-feed gasification (gasification)

Inputs

Product flows

Bituminous-coal gasification feed (coal_feed)

Only actual bituminous-coal feed; measure moisture, ash and carbon. Each other solid feed requires its own atomic card and matching route evidence.

• Selected flow: Bituminite f10e7264-fc49-491a-a886-f717e3c7a437
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_coal_feed; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_coal_feed
• Sources: netl-gasification-2002, un-energy-2024

Gasification oxygen (oxygen_feed)

Only purchased oxygen for the actual oxygen-blown route; record purity and supplier state. On-site ASU inputs and allocated electricity replace the purchased-oxygen provider without duplicate burdens.

• Selected flow: oxygen f804eb52-65c3-4db0-9d2d-e463b29e6e4b
• Flow property / unit: Volume / m3
• Amount rule: Collect the attributable reporting-period quantity under cp_oxygen_feed; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_oxygen_feed
• Sources: netl-gasification-2002, un-energy-2024

Gasification steam (steam_feed)

Only purchased steam; record actual pressure, temperature and phase quality; on-site generation uses actual fuel/water inventories.

• Selected flow: Gasification steam
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_steam_feed; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_steam_feed
• Sources: netl-gasification-2002, un-energy-2024

Gasification electricity (gasifier_power)

This purchased electricity exchange requires independently confirmed actual supplier, consumption or production interface, geography, voltage, generation attributes and energy property/unit; its UUID remains unresolved until a compatible direct-read identity is confirmed. A waste-incineration generation flow must not represent arbitrary site power.

Feed preparation, blowers and gasifier auxiliaries; allocate shared meters once.

• Selected flow: Electricity
• Flow property / unit: Net calorific value / MJ
• Amount rule: Collect the attributable reporting-period quantity under cp_gasifier_power; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_gasifier_power
• Sources: netl-gasification-2002, un-energy-2024

Coke feed for water-gas production (coke_feed)

Only actual coke/steam route; record supplier, carbon and ash. Do not count both coke and its supplier coal at this boundary.

• Selected flow: Coke feed for water-gas production
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_coke_feed; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_coke_feed
• Sources: netl-gasification-2002, un-energy-2024

Elementary flows

Ambient gasification air (gasifier_air)

Only an air-blown gasifier; measure intake and nitrogen balance; manufactured oxygen is separate.

• Selected flow: air fe0acd60-3ddc-11dd-aaa4-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_gasifier_air; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_gasifier_air
• Sources: netl-gasification-2002, un-energy-2024

Outputs

Waste flows

Gasifier ash (gasifier_ash)

Only discarded ash; record dry mass, carbon, leachability and treatment. Slag requires its own state-specific row.

• Selected flow: Gasifier ash
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_gasifier_ash; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_gasifier_ash
• Sources: netl-gasification-2002, un-energy-2024

Gasifier slag transferred for management (gasifier_slag)

Only actual slagging gasifier; distinguish ash/char, dry solids, residual carbon and final fate.

• Selected flow: Gasifier slag transferred for management
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_gasifier_slag; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_gasifier_slag
• Sources: netl-gasification-2002, un-energy-2024

Process: Parent-process raw-gas recovery (recovery)

Inputs

Product flows

Raw industrial fuel gas (parent_raw_gas)

Only actual recovered-gas route; specify parent process and subtype, contaminants and allocated upstream provider.

• Selected flow: Raw industrial fuel gas
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_parent_raw_gas; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_parent_raw_gas
• Sources: netl-gasification-2002, un-energy-2024

Process: Gas cleaning and conditioning (cleanup)

Inputs

Product flows

Gas-scrubber process water (scrubber_water)

Purchased fresh make-up only; circulating water is not repeated supply.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_scrubber_water; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_scrubber_water
• Sources: netl-gasification-2002, un-energy-2024

Gas-cleaning electricity (cleanup_power)

This purchased electricity exchange requires independently confirmed actual supplier, consumption or production interface, geography, voltage, generation attributes and energy property/unit; its UUID remains unresolved until a compatible direct-read identity is confirmed. A waste-incineration generation flow must not represent arbitrary site power.

Actual particulate removal, acid-gas cleaning and circulation.

• Selected flow: Electricity
• Flow property / unit: Net calorific value / MJ
• Amount rule: Collect the attributable reporting-period quantity under cp_cleanup_power; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_cleanup_power
• Sources: netl-gasification-2002, un-energy-2024

Methyldiethanolamine solvent make-up (mdea_makeup)

Only an actual MDEA system; circulating solvent is internal. Each other solvent requires its own identity and active concentration.

• Selected flow: Methyldiethanolamine solvent make-up
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_mdea_makeup; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_mdea_makeup
• Sources: netl-gasification-2002, un-energy-2024

Outputs

Waste flows

Gas-cleaning tar residue (tar_residue)

Only discarded tar residue; saleable recovered tar needs its own product row and allocation.

• Selected flow: Gas-cleaning tar residue
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_tar_residue; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_tar_residue
• Sources: netl-gasification-2002, un-energy-2024

Gas-scrubber effluent transferred for treatment (scrubber_effluent)

Only external treatment transfer; final species/receiving-water discharges are separate rows.

• Selected flow: Gas-scrubber effluent transferred for treatment
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_scrubber_effluent; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_scrubber_effluent
• Sources: netl-gasification-2002, un-energy-2024

Spent methyldiethanolamine solvent (spent_mdea)

Only actual solvent purges transferred for treatment; record water/acid-gas content and fate.

• Selected flow: Spent methyldiethanolamine solvent
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_spent_mdea; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_spent_mdea
• Sources: netl-gasification-2002, un-energy-2024

Elementary flows

Fossil carbon dioxide to outdoor air (co2_air)

Only measured direct fossil CO2 from removed acid gas and on-site combustion; exclude captured gas and supplier emissions from this direct release.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_co2_air; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_co2_air
• Sources: netl-gasification-2002, un-energy-2024

Process: Metered storage and delivery (delivery)

Inputs

Product flows

Gas-delivery electricity (delivery_power)

This purchased electricity exchange requires independently confirmed actual supplier, consumption or production interface, geography, voltage, generation attributes and energy property/unit; its UUID remains unresolved until a compatible direct-read identity is confirmed. A waste-incineration generation flow must not represent arbitrary site power.

Actual gas-holder and compression meters, excluding upstream cleaning duplication.

• Selected flow: Electricity
• Flow property / unit: Net calorific value / MJ
• Amount rule: Collect the attributable reporting-period quantity under cp_delivery_power; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_delivery_power
• Sources: netl-gasification-2002, un-energy-2024

Outputs

Product flows

Manufactured fuel gas at the declared gate (final_product)

One identified origin and dry gas composition; reference represents supply, not combustion heat.

• Selected flow: Manufactured fuel gas at the declared gate
• Flow property / unit: Mass / kg
• Amount rule: 1 kg
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_output
• Sources: netl-gasification-2002, un-energy-2024

Elementary flows

Fossil carbon monoxide to outdoor air (carbon_monoxide_air)

Only unrecovered fossil carbon monoxide from measured leaks, vents or actual on-site combustion; biogenic CO requires a distinct compatible identity.

• Selected flow: carbon monoxide (fossil) 08a91e70-3ddc-11dd-924e-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_carbon_monoxide_air; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_carbon_monoxide_air
• Sources: netl-gasification-2002, un-energy-2024

Fossil methane to outdoor air (methane_air)

Only actual unrecovered fossil methane; measure composition and leakage. Do not represent mixed gas as methane.

• Selected flow: methane (fossil) 08a91e70-3ddc-11dd-9610-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_methane_air; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_methane_air
• Sources: netl-gasification-2002, un-energy-2024

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_hierarchy	joint production	Prefer process subdivision or defensible system expansion; otherwise use demonstrated physical causality. Use economic allocation only with consistent period, price, currency and sensitivity when physical causality is unavailable. Retain the unallocated inventory.	ef-allocation-2021
allocation_product	reference and co-products	Retain the actual parent-process burden on recovered gas; it is not burden-free because it is a by-product. Subdivide gasification and exported heat or power first, then allocate unavoidable joint products using demonstrated causality. Do not claim both avoided fuel and allocated co-product credit.
allocation_waste	waste and recycling	Classify each output by physical state and actual fate. A sale does not automatically make a residue a co-product; internal recycling receives no avoided-product credit. Apply treatment burdens once.

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_coal_feed	gasification	coal_feed	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_gasifier_air	gasification	gasifier_air	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_oxygen_feed	gasification	oxygen_feed	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	m3	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_steam_feed	gasification	steam_feed	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_gasifier_power	gasification	gasifier_power	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_gasifier_ash	gasification	gasifier_ash	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_parent_raw_gas	recovery	parent_raw_gas	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Measure calibrated net gas mass or matched-condition volume with measured composition, temperature, absolute pressure and compressibility; retain dry/wet basis and calorific-value assay. Reconcile stocks, own use and recycling. cp_output independently records positive accepted gas mass D, excluding burned or flared gas.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_scrubber_water	cleanup	scrubber_water	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_cleanup_power	cleanup	cleanup_power	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_tar_residue	cleanup	tar_residue	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_scrubber_effluent	cleanup	scrubber_effluent	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_delivery_power	delivery	delivery_power	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_carbon_monoxide_air	delivery	carbon_monoxide_air	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Integrate calibrated gas flow and measured species concentration over operating duration, with temperature/pressure and compartment. If modelling is necessary, retain source-specific measured activity, carbon/species balance, factor provenance and uncertainty. No generic factor assumed.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_output	delivery	final_product	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Measure calibrated net gas mass or matched-condition volume with measured composition, temperature, absolute pressure and compressibility; retain dry/wet basis and calorific-value assay. Reconcile stocks, own use and recycling. cp_output independently records positive accepted gas mass D, excluding burned or flared gas.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_coke_feed	gasification	coke_feed	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_gasifier_slag	gasification	gasifier_slag	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_mdea_makeup	cleanup	mdea_makeup	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_spent_mdea	cleanup	spent_mdea	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_co2_air	cleanup	co2_air	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Integrate calibrated gas flow and measured species concentration over matched time, temperature and pressure. If metering is unavailable, retain measured source activity, traceable factor, carbon/species balance and uncertainty; no universal factor or conversion efficiency.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_methane_air	delivery	methane_air	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Integrate calibrated gas flow and measured species concentration over matched time, temperature and pressure. If metering is unavailable, retain measured source activity, traceable factor, carbon/species balance and uncertainty; no universal factor or conversion efficiency.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	Dry gas at a declared origin, composition, pressure and metered gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
normalization	all cards	Exchange = attributable period quantity / D. Reconcile inventories and cancel internal transfers before aggregation.	cp_output; row-specific cp records	per 1 kg reference flow
physical_balance	production	Close dry gas mass and carbon balances using measured feed carbon, product composition, tar/char carbon, combustion and emissions. Record moisture/steam separately. Gas mass equals corrected volume times measured composition-dependent density at the same reference conditions. A producer-gas heating value or density cannot substitute for water gas, coke-oven gas or recovered gas. Cancel internal recycled gas and cooling-water loops.	Matched mass, volume, composition and stock measurements	Balance residual and uncertainty

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
representativeness	dataset	Use matching production and exchange periods, actual technology, geography and supplier state. Record startup, shutdown, seasonal variation and substitutions.	collection records
identity_and_ranges	all cards	Unresolved identities and missing independent range evidence remain explicit. Do not replace measurement by a guessed industry range or by missing-as-zero.	manifest review metadata

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_reference	final_product	Verify 1 kg, positive D, product state, property/unit and every required qualifier. Each dataset fixes one product and route.
validate_balance	site	Close dry gas mass and carbon balances using measured feed carbon, product composition, tar/char carbon, combustion and emissions. Record moisture/steam separately. Gas mass equals corrected volume times measured composition-dependent density at the same reference conditions. A producer-gas heating value or density cannot substitute for water gas, coke-oven gas or recovered gas. Cancel internal recycled gas and cooling-water loops.
validate_coverage	handoff	Verify each applicable exchange, its provider or environmental compartment and final waste fate; identify skipped checks, unresolved identities, missing measurements and upstream gaps. Errors or unassessed mandatory coverage cannot be labelled complete.

10. Published Dataset Profile

Field	Value
dataset_role	foreground_dataset
downstream_use	secondary_dataset; background_dataset
allowed_use	Supply origin- and composition-qualified fuel gas as a material/energy carrier
excluded_use	Natural gas; refinery gas; petroleum hydrocarbon gases; standalone hydrogen; unmetered heat-only production
required_metadata	site/year; origin and subtype; feedstock; gasifying agent; dry/wet basis; gas composition; pressure and temperature; density; net calorific value; parent burden allocation; cleaning technology; gate; own-use and losses; compressibility and gas-volume reference conditions; fossil/biogenic carbon share; applicable subtype PCR
required_quality_disclosure	Identity and measurement gaps; boundary coverage; uncertainty; allocation; temporal and geographical representativeness
update_trigger	Changed product, route, yield, supply, waste fate, site or representative period

11. Data Sources

Source id	Type	Reference	Used for
netl-gasification-2002	official_guidance	DOE/NETL, Major Environmental Aspects of Gasification-Based Power Generation Technologies, Final Report, December 2002, sections 1.1.2–1.1.5, printed pp.1-6 and 1-11–1-12 (PDF pp.44,49–50). https://www.netl.doe.gov/sites/default/files/netl-file/final-env.pdf	Gasification agents, particulate and acid-gas cleanup, ash and wastewater; historical process evidence only.
un-energy-2024	official_guidance	UNSD, Guidelines for the Annual Questionnaire on Energy Statistics, May 2024, fuel definitions. https://unstats.un.org/unsd/energy/energy-questionnaire-guidelines.pdf	Fuel identity and calorific-value basis; no assumed gas composition.
cpc3-notes-2025	official_guidance	UNSD, CPC Version 3.0 Explanatory Notes, 30 June 2025. https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdf	Classification scope only; no process quantities.
ef-allocation-2021	official_guidance	Commission Recommendation (EU) 2021/2279, Annex I section 4.5, consolidated 30 December 2021. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02021H2279-20211230	Multifunctionality hierarchy; not a claim of complete PEF conformity.