Last reviewed on November 2, 2011 at 09:14

Documentation of California's Greenhouse Gas Inventory (First Edition - Last updated on 11/19/2007)

♦ Category: Industrial Processes and Product Use

IPCC: 2H3 - Other - Other (please specify)
Sector: Industrial : Petroleum Refining : Transformation

♦ Activity: Fuel consumption - Natural gas

♦ Greenhouse gas: Carbon dioxide ( CO2 )

► Year 1990 —

● Greenhouse gas emission estimate —

Amount: 2,100,491 tonnes of CO2 Emitted (2,100,491 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Fuel consumption] * [Heat content] * (1 - [Proportion of carbon stored]) * [Fuel CO2 emission]
Reference: Murtishaw, S., De La Rue du Can, S,. Price, L., Masanet, E., and Simcich, M. (2005). CALEB: California Energy Balance Database, September 12, 2005. Lawrence Berkeley National Laboratory, Berkeley, CA.

● Activity level used in calculations —

Activity: Fuel consumption = 38,372,053,432 scf of Natural gas
Basis: data
Reference: Shires, T. (2007) Personal communication between Larry Hunsaker of CA Air Resources Board and Terri Shires of URS Corporation (Austin, TX) who provided printed excerpt from the Oil and Gas Journal's "Historical Worldwide Refinery Survey" (Prod No. E1181C) database, for refineries in California for the years 1990 through 2005.

● Parameters and Constants used in calculations —

Parameter: Fuel CO2 emission = 0.053 g / btu
Reference: USEPA (2007). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2005. United States Environmental Protection Agency. EPA 430-R-07-002. Annex 2.1 (Tables A-31, A-32, A-35, and A-36). April 15, 2007. Washington DC. http://www.epa.gov/climatechange/emissions/usgginv_archive.html
Parameter: Heat content = 1,032 btu / scf
Reference: EIA (2007). Energy Information Administration. State Energy Consumption, Price, and Expenditure Estimates (SEDS). Available online at: http://www.eia.doe.gov/emeu/states/state.html?q_state_a=ca&q_state=CALIFORNIA
Parameter: Proportion of carbon stored = 0
Reference: Murtishaw, S., De La Rue du Can, S,. Price, L., Masanet, E., and Simcich, M. (2005). CALEB: California Energy Balance Database, September 12, 2005. Lawrence Berkeley National Laboratory, Berkeley, CA.

● Greenhouse gas emitted per unit activity —

Amount: 54.7 g of CO2 per scf of Natural gas
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