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OCR for page 223
E Select Acronyms and Abbreviations Acetyl-CoA Acetyl-coenzyme A B20 A blend of 20 percent biodiesel and 80 percent petroleum diesel and is the most common biodiesel blend in the United States B100 100 percent biodiesel CAFOs Concentrated animal feeding operations CO Carbon monoxide CO2 Carbon dioxide DAF Dissolved air flotation DAP diammonium phosphate DGAT Diacylglycerol acyltransferase DNA Deoxyribonucleic acid DOE U.S. Department of Energy DOE-EERE U.S. Department of Energy, Energy Efficiency and Renewable Energy DW Dry weight E10 A blend of up to 10 percent ethanol and the balance petroleum-based gasoline E15 A blend of up to 15 percent ethanol and the balance petroleum-based gasoline E85 A blend of up to 85 percent ethanol and the balance petroleum-based gaso- line. For the past several years, E85 sold in the United States has averaged about 75 percent ethanol. EIOLCA Economic input-output approach to life-cycle assessment EPA U.S. Environmental Protection Agency EROI Energy return on investment 223
OCR for page 224
224 APPENDIX E EROWI Energy return on water invested FAME Fatty-acid methyl ester FFV Flex fuel vehicle F-TFischer-Tropsch GBEP Global Bioenergy Partnership GHG Greenhouse gas GIS Geographic information systems GREET Greenhouse gases, regulated emissions, and energy use in transportation IH2 Integrated hydropyrolysis and hydroconversion ILUC Indirect land-use change KOH Potassium hydroxide LCA Life-cycle assessment LUC Land-use change NNitrogen NASA National Aeronautic and Space Administration NER Net energy ratio NEV Net energy value NH3Ammonia NOX Nitrogen oxides NRC National Research Council OBP Office of the Biomass Program OMEGA Offshore Membrane Enclosure for Growing Algae PPhosphorus PAR Photosynthetically active radiation R&D Research and development RNA Ribonucleic acid RSB Roundtable on Sustainable Biofuels Rubisco Ribulose-1,5-bisphosphate carboxylase oxygenase SiSilicon SO2 sulfur dioxide SVR Surface to volume ratio TAGsTriacylglycerols TSCA Toxic Substances Control Act VCSS Vapor compression steam stripping VOCs Volatile organic compounds WWTP Wastewater treatment plant