Journal
ENERGY
Volume 93, Issue -, Pages 343-353Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2015.09.043
Keywords
Electrolytic hydrogen; CO2 fixation; Methanol production; Technoeconomic analysis; Sustainability metrics; Multi-criteria decision matrix
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Funding
- Nebraska Public Power District (NPPD) Columbus, Nebraska [4200001187]
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This study is for the technoeconomic analysis of an integral facility consisting of wind energy-based electrolytic hydrogen production, bioethanol-based carbon dioxide capture and compression, and direct methanol synthesis. ASPEN Plus was used to simulate the facility producing 97.01 mt (metric tons) methanol/day using 138.37 mt CO2/day and 18.56 mt H-2/day. A discounted cash flow diagram for the integral facility is used for the economic analysis at various hydrogen production costs and methanol selling prices. The feasibility analysis is based on a multi-criteria decision matrix consisting of economic and sustainability indicators comparing renewable and non-renewable methanol productions. The overall energy efficiency for the renewable methanol is around 58%. Fixation of carbon reduces the CO2 equivalent emission by around -1.05 CO(2)e/kg methanol. The electrolytic hydrogen production cost is the largest contributor to the economics of the integral facility. The feasibility analysis based on multi-criteria shows that renewable methanol production may be feasible. (C) 2015 Elsevier Ltd. All rights reserved.
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