Techno-economical analysis of a thermo-chemical biofuel plant with feedstock and product flexibility under external disturbances

Nannan Kou and Fu Zhao

Energy, 2011, vol. 36, issue 12, 6745-6752

Abstract: Biofuel is one candidate that can address the global warming and energy security challenges faced by the transportation sector. However, biofuel production is subject to unpredictable external disturbances caused by demand variation, regional instability and extreme weather. It is highly desired to design a biofuel plant such that it has operational flexibility to survive through these disturbances. Gasification based thermo-chemical conversion is one of the promising approaches: the plant can produce a variety of products including electricity, liquefied petroleum gas, gasoline, and diesel while taking almost any kind of biomass as feedstock. In this paper, technical and economic performance of thermo-chemical biofuel plants is evaluated under external disturbances, including extreme weather, market fluctuation, and policy uncertainties. Four plant configurations with varying electricity generation capacity and different in-plant hydrogen production methods (methane autothermal reforming or water-gas shifting) are considered. It has been found that by providing additional electricity production capacity and producing hydrogen via methane reforming, the biofuel plant could have the best chance to maximize profit under external disturbances. Results from this research are expected to help relevant biofuel stakeholders, i.e. investors, plant managers, and government agencies, to make key decisions with regards to investment, plant operation, as well as policy.

Keywords: Biofuel production; Operational flexibility; Extreme weather; Market fluctuation; Subsidy policy (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:36:y:2011:i:12:p:6745-6752

DOI: 10.1016/j.energy.2011.10.031

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