Assessment of flexible energy vectors poly-generation based on coal and biomass/solid wastes co-gasification with carbon capture

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• 作者：Calin-Cristian Cormos ; ^{cormos@chem.ubbcluj.ro}
• 关键词：Co-gasification ; Renewable energy sources (biomass) ; Solid wastes ; Energy vectors poly-generation ; Carbon capture and storage (CCS)
• 刊名：International Journal of Hydrogen Energy
• 出版年：2013
• 出版时间：27 June, 2013
• 年：2013
• 卷：38
• 期：19
• 页码：7855-7866
• 全文大小：1166 K

文摘

This paper evaluates biomass and solid wastes co-gasification with coal for energy vectors poly-generation with carbon capture. The evaluated co-gasification cases were evaluated in term of key plant performance indicators for generation of totally or partially decarbonized energy vectors (power, hydrogen, substitute natural gas, liquid fuels by Fischer-Tropsch synthesis). The work streamlines one significant advantage of gasification process, namely the capability to process lower grade fuels on condition of high energy efficiency. Introduction in the evaluated IGCC-based schemes of carbon capture step (based on pre-combustion capture) significantly reduces CO₂ emissions, the carbon capture rate being higher than 90 % for decarbonized energy vectors (power and hydrogen) and in the range of 47-60 % for partially decarbonized energy vectors (SNG, liquid fuels). Various plant concepts were assessed (e.g. 420-425?MW net power with 0-200?MW_th flexible hydrogen output, 800?MW_th SNG, 700?MW_th liquid fuel, all of them with CCS). The paper evaluates fuel blending for optimizing gasification performance. A detailed techno-economic evaluation for hydrogen and power co-generation with CCS was also presented.