Environmental Life Cycle Assessment of Coal-Biomass to Liquid Jet Fuel Compared to Petroleum-Derived JP-8 Jet Fuel
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
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The United States U.S. imported 57 of the petroleum products that it consumed in 2008. The Department of Defense DOD and in particular, the United States Air Force USAF, consumes a large amount of oil to support the mission of defending the U.S. According to the USAF energy policy, by 2016, the Air Force AF must be prepared to cost competitively acquire 50 of its domestic aviation fuel requirement via an alternative fuel blend in which the alternative component is derived from domestic sources produced in a manner that is greener than fuels produced from conventional petroleum. This study employed a life cycle assessment LCA tool known as Economic Input-Output Life Cycle Assessment EIO-LCA to compare the petroleum derived jet fuel of JP-8 to the alternative jet fuel of Coal-Biomass to Liquid CBTL to determine which was greener by determining the total global warming potential GWP over each jet fuels entire life cycle. The CBTL jet fuel was determined to be greener for the environment with utilizing carbon capture and storage CCS via the Fischer Tropsch FT synthesis process when producing liquid jet fuel from coal and swithchgrass as the biomass.