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dc.contributor.authorOkeke, Ikenna Joseph
dc.description.abstractProduction of drop-in renewable diesel from biogas derived from anaerobic digestion (AD) of Miscanthus gigentus cultivated from strip-mined soils was investigated to evaluate energy use, environmental impacts and economic feasibilities and compared with that of conventional fossil based diesel fuel. A process simulation model was developed for biogas to liquid fuels (BgTL) via Fischer-Tropsch (F-T) synthesis to assess overall mass and energy balances and to estimate the minimum selling price of renewable F-T fuels. A base case BgTL plant size of 2000 Nm3/h required about $105 million capital investment and $12 million annual operating expenses with a minimum F-T fuels selling price of $5.6/GGE and the price could be reduced by up to $2/GGE, if the biogas plant capacity can be increased by tenfold (20,000 Nm3/h). Life cycle assessment study concluded that the net greenhouse gas (GHG) emissions could be reduced by up to 26% compared with that of conventional diesel fuel with increased crop yield and soil carbon sequestration rate.
dc.rightsOn Campus Only Until 2018-08-01
dc.subjectRenewable diesel
dc.subjectAspen Plus
dc.subjectlife cycle analysis
dc.titleEconomic and environmental assessment of biogas to liquid fuels (bgtl) technology via fischer-tropsch synthesis
dc.description.majorBiochemical Engineering
dc.description.advisorSudhagar Mani
dc.description.committeeSudhagar Mani
dc.description.committeeCaner Kazanci
dc.description.committeeK. C. Das

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