Nevada Statewide Greenhouse Gas Emissions Inventory and Projections

Nevada Statewide Greenhouse Gas Emissions Inventory and Projections, 1990 to 2030 6. Industrial Process 6.1 Overview This section reports GHG emissions from non-energy related industrial processes in Nevada. In these processes, it is the transformation of raw materials from one state to another that results in the release of GHGs into the atmosphere. The GHGs associated with industrial process related activities that were considered in this report include CO2, N2O, Hydrofluorocarbons (HFC), perfluorocarbons (PFC), and sulfur hexafluoride (SF). Table 6-1 lists the industrial processes that were considered in this report, the associated type of GHG emissions, and a brief description of sources and methodologies used to estimate GHG emissions. Processes that are not present in Nevada or for which no data is available, but are considered in the SIT, are not considered in this report. Table 6-1: Reported Industrial Processes in Nevada Associated Data Source Activity Data Required GHG emissions SIT Cement Manufacture CO₂ Emission factors and production data for clinker and cement kiln dust Lime Manufacture CO₂ Limestone and Dolomite CO₂ Use Ammonia production & CO₂ Urea consumption Soda Ash Consumption CO₂ Emission factors and production data for high-calcium lime and for dolomitic lime Emission factors and consumption data for limestone, dolomite, and magnesium produced from dolomite Emission factors and ammonia production and urea consumption data Emission factors and consumption data for ash Emission factor, production data, and percent N2O Released after pollution control for nitric acid production National emissions, state and U.S. population USGS Minerals Yearbook Greenhouse Gas Reporting Program SIT USGS Minerals Yearbook Greenhouse Gas Reporting Program SIT USGS Minerals Yearbook SIT SIT USGS Minerals Yearbook US Census and NV Census SIT NV GHG Emission Inventory (2012) Nitric Acid Production N₂O Ozone Depleting Substance SIT (ODS) Substitutes HFC, PFC, SF6 US Census and NV Census Semiconductor HFC, PFC, SF6 Manufacturing Electric Power Transmission and Distribution Systems HFC, PFC, SF6 National emissions, Economic Census Emission factor and national SF6 consumption data for electric power transmission and distribution. Electricity sales at national and state level SIT SIT DOE - EIA 6.2 Historical Emissions Nevada's 2013 industrial process emissions were estimated to be 3.550 MMTCO2eq. This accounted for 8 percent of the state's gross GHG emissions. Table 6-2 below lists historical industrial process emissions. Emissions have steadily increased since 1990 largely due to the manufacture of Ozone Depleting Substance (ODS) substitutes. According to the EPA's 2016 Inventory of U.S. Greenhouse Gas Emissions and Sinks, "[t]he use and subsequent emissions of HFCS and PFCs as ODS substitutes has been increasing... This increase was in large part the result of efforts to phase out CFCs and other ODSs in the United States. In the short term, this trend is expected to continue, and will likely continue over the 25 25

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