Last reviewed on November 2, 2011 at 10:04

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

♦ Category: Energy

IPCC: 1A1b - Fuel Combustion Activities - Energy Industries - Petroleum Refining
Sector: Industrial : Petroleum Refining

♦ Activity: Fuel combustion - Petroleum coke

♦ Greenhouse gas: Nitrous oxide ( N2O )

► Year 1990 —

● Greenhouse gas emission estimate —

Amount: 3.51 tonnes of N2O Emitted (1,088 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Fuel combustion] * [Heat content] * [Fuel N2O emission]
Reference: IPCC (1997). Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories (Revised Guidelines). Intergovernmental Panel on Climate Change. Published: IGES, Japan.

● Activity level used in calculations —

Activity: Fuel combustion = 194,206 ton of Petroleum coke
Basis: Data
Reference: Schremp, G. (2007). Personal communication (data from the Petroleum Industry Information Reporting Act [PIIRA] M-13 Survey Form) between Larry Hunsaker of the CA Air Resources Board and Gordon Schremp of the California Energy Commission. Summer 2007.

● Parameters and Constants used in calculations —

Parameter: Fuel N2O emission = 6.000E-07 g / btu
Reference: IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programme, Eggleston H.S., Buendia L., Miwa K., Ngara T., and Tanabe K. (eds). Volume 2, Chapter 2: Energy.
Parameter: Heat content = 30,120,000 btu / ton
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.
Constant: Global warming potential of N2O = 310
Reference: IPCC (1996). Second Assessment Report. Climate Change 1995: WG I - The Science of Climate Change. Intergovernmental Panel on Climate Change; J.T. Houghton, L.G. Meira Filho, B.A. Callander, N. Harris, A. Kattenberg, and K. Maskell (eds.); Cambridge University Press. Cambridge, U.K.

● Greenhouse gas emitted per unit activity —

Amount: 18.1 g of N2O per ton of Petroleum coke
5,602 g (i.e. 5.6 kg) of CO2eq. per ton of Petroleum coke