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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: 2B2 - Chemical Industry - Nitric Acid Production
Sector: Industrial : Manufacturing : Chemicals & Allied Products : Nitric Acid

♦ Activity: Nitric acid production -

♦ Greenhouse gas: Nitrous oxide ( N2O )

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► Year 1990 —

● Greenhouse gas emission estimate —

Amount: 1,725 tonnes of N2O Emitted (534,653 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Nitric acid production] * [N2O emission factor]
Reference: USEPA (2004). Emission Inventory Improvement Program. Technical Report Series, Volume 8: Estimating Greenhouse Gas Emissions, Chapter 6: Industrial Processes. US Environmental Protection Agency. Washington DC. http://www.epa.gov/ttn/chief/eiip/techreport/volume08/index.html

● Activity level used in calculations —

Activity: Nitric acid production = 215,586,019,065 g (i.e. 215.59 thousand tonnes)
Basis: Calculation
Calculation: [US nitric acid production] * ([California nitric acid production capacity] / [US nitric acid production capacity])
Reference: ARB (2009). Technical Support Document for California’s Greenhouse Gas Emissions Inventory and 1990 Emissions Level. California Air Resources Board. (March 2009). Available online at: http://www.arb.ca.gov/cc/inventory/doc/methods_v1/ghg_inventory_technical_support_document.pdf
Reference: ARB (2009). Technical Support Document for California’s Greenhouse Gas Emissions Inventory and 1990 Emissions Level. California Air Resources Board. (March 2009). Available online at: http://www.arb.ca.gov/cc/inventory/doc/methods_v1/ghg_inventory_technical_support_document.pdf

● Parameters and Constants used in calculations —

Parameter: California nitric acid production capacity = 330,000 tonne
Reference: CEC (2002). Inventory of California Greenhouse Gas Emissions and Sinks: 1990-1999. Publication #600-02-001F. November 2002. California Energy Commission, Sacramento. http://www.energy.ca.gov/reports/600-02-001F/2002-09-14_600-02-001F.PDF
Parameter: N2O emission factor = 8.000E-03 g / g
Reference: USEPA (2004). Emission Inventory Improvement Program. Technical Report Series, Volume 8: Estimating Greenhouse Gas Emissions, Chapter 6: Industrial Processes. US Environmental Protection Agency. Washington DC. http://www.epa.gov/ttn/chief/eiip/techreport/volume08/index.html
Parameter: US nitric acid production = 7,196,000,000,000 g (i.e. 7.2 million tonnes)
Reference: USEPA (2006). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2004. United States Environmental Protection Agency. EPA 430-R-06-002. Table 4-58: U.S. Nitric Acid Production, Industrial Processes, Page 4-41. April 15, 2006. Washington DC. http://www.epa.gov/climatechange/emissions/usgginv_archive.html
Parameter: US nitric acid production capacity = 11,015,000 tonne
Reference: CEC (2002). Inventory of California Greenhouse Gas Emissions and Sinks: 1990-1999. Publication #600-02-001F. November 2002. California Energy Commission, Sacramento. http://www.energy.ca.gov/reports/600-02-001F/2002-09-14_600-02-001F.PDF
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: 8.000E-03 g of N2O per g
2.48 g of CO2eq. per g