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dc.contributor.authorOkeke, Ikenna Joseph
dc.date.accessioned2017-03-31T04:30:55Z
dc.date.available2017-03-31T04:30:55Z
dc.date.issued2016-08
dc.identifier.otherokeke_ikenna_j_201608_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/okeke_ikenna_j_201608_ms
dc.identifier.urihttp://hdl.handle.net/10724/36866
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.languageeng
dc.publisheruga
dc.rightsOn Campus Only Until 2018-08-01
dc.subjectBiogas
dc.subjectRenewable diesel
dc.subjectAspen Plus
dc.subjectlife cycle analysis
dc.subjectGHG.
dc.titleEconomic and environmental assessment of biogas to liquid fuels (bgtl) technology via fischer-tropsch synthesis
dc.typeThesis
dc.description.degreeMS
dc.description.departmentEngineering
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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