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Mechanical Engineering

Techno-economic analysis

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Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

Techno-Economic Analysis Of Advanced Biofuel Production Based On Bio-Oil Gasification, Qi Li, Yanan Zhang, Guiping Hu Sep 2015

Techno-Economic Analysis Of Advanced Biofuel Production Based On Bio-Oil Gasification, Qi Li, Yanan Zhang, Guiping Hu

Industrial and Manufacturing Systems Engineering Publications

This paper evaluates the economic feasibility of a hybrid production pathway combining fast pyrolysis and bio-oil gasification. The conversion process is simulated with Aspen Plus® for a 2000 t d-1 facility. Techno-economic analysis of this fast pyrolysis and bio-oil gasification pathway has been conducted to assess the economic feasibility. A total capital investment of $438 million has been estimated and the minimum fuel selling price (MSP) is $5.6 per gallon of gasoline equivalent. The sensitivity analysis shows that the MSP is most sensitive to internal rate of return, fuel yield, biomass feedstock cost, and fixed capital investment. Monte-Carlo simulation ...


Mild Catalytic Pyrolysis Of Biomass For Production Of Transportation Fuels: A Techno-Economic Analysis, Rajeeva Thilakaratne, Tristan Brown, Yihua Li, Guiping Hu, Robert C. Brown Jan 2014

Mild Catalytic Pyrolysis Of Biomass For Production Of Transportation Fuels: A Techno-Economic Analysis, Rajeeva Thilakaratne, Tristan Brown, Yihua Li, Guiping Hu, Robert C. Brown

Industrial and Manufacturing Systems Engineering Publications

A techno-economic analysis of mild catalytic pyrolysis (CP) of woody biomass followed by upgrading of the partially deoxygenated pyrolysis liquid is performed to assess this pathway’s economic feasibility for the production of hydrocarbon-based biofuels. The process achieves a fuel yield of 17.7 wt% and an energy conversion of 39%. Deoxygenation of the pyrolysis liquid requires 2.7 wt% hydrogen while saturation of aromatic rings in the pyrolysis liquid increases total hydrogen consumption to 6.4 wt%. Total project investment is $457 million with annual operating costs of $142 million for a 2000 metric ton per day facility. A ...


Techno-Economic Analysis Of Co-Located Corn Grain And Corn Stover Ethanol Plants, Longwen Ou, Tristan Brown, Rajeeva Thilakaratne, Guiping Hu, Robert C. Brown Jan 2014

Techno-Economic Analysis Of Co-Located Corn Grain And Corn Stover Ethanol Plants, Longwen Ou, Tristan Brown, Rajeeva Thilakaratne, Guiping Hu, Robert C. Brown

Industrial and Manufacturing Systems Engineering Publications

The goal of this paper is to evaluate the economic performance of co-located corn grain ethanol (Gen 1) and cellulosic ethanol (Gen 2) facilities. We present six scenarios to evaluate the impact of stover-to-grain mass (SGM) ratios on overall minimum ethanol selling price (MESP). For the Gen 1 plant, MESP is $3.18/ gasoline gallon equivalent (GGE) while for the Gen 2 plant it is $5.64/GGE. Co-located Gen 1 and Gen 2 plants operating at the lowest SGM ratio of 0.4 generates the lowest overall MESP of $3.73/GGE as well as the highest MESP for ...


Techno-Economic Analysis Of Biomass To Transportation Fuels And Electricity Via Fast Pyrolysis And Hydroprocessing, Tristan Brown, Guiping Hu Apr 2013

Techno-Economic Analysis Of Biomass To Transportation Fuels And Electricity Via Fast Pyrolysis And Hydroprocessing, Tristan Brown, Guiping Hu

Industrial and Manufacturing Systems Engineering Publications

A previous Iowa State University (ISU) analysis published in 2010 investigated the technical and economic feasibility of the fast pyrolysis and hydroprocessing of biomass, and concluded that the pathway could produce cellulosic biofuels for a minimum fuel selling price (MFSP) of $2.11/gal. The 2010 ISU study was largely theoretical in that no commercial-scale fast pyrolysis facilities were being constructed at the time of publication.

The present analysis expands upon the 2010 ISU study by performing an updated techno-economic analysis of the fast pyrolysis and hydroprocessing pathway. Recent advances in pathway technology and commercialization and new parameters suggested by ...