Hydrogen and power co-generation based on coal and biomass/solid wastes co-gasification with carbon capture and storage

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• 作者：Calin-Cristian Cormos ; ^{cormos@chem.ubbcluj.ro}
• 关键词：IGCC ; Renewable energy sources (biomass) ; Solid wastes ; Hydrogen and electricity co-production ; Carbon capture and storage
• 刊名：International Journal of Hydrogen Energy
• 出版年：2012
• 出版时间：April, 2012
• 年：2012
• 卷：37
• 期：7
• 页码：5637-5648
• 全文大小：422 K

文摘

This paper investigates the potential use of renewable energy sources (various sorts of biomass) and solid wastes (municipal wastes, sewage sludge, meat and bone meal etc.) in a co-gasification process with coal to co-generate hydrogen and electricity with carbon capture and storage (CCS). The paper underlines one of the main advantages of gasification technology, namely the possibility to process lower grade fuels (lower grade coals, renewable energy sources, solid wastes etc.), which are more widely available than the high grade coals normally used in normal power plants, this fact contributing to the improvement of energy security supply. Based on a proposed plant concept that generates 400-500?MW net electricity with a flexible output of 0-200?MW_th hydrogen and a carbon capture rate of at least 90 % , the paper develops fuel selection criteria for coal blending with various alternative fuels for optimizing plant performance e.g. oxygen consumption, cold gas efficiency, hydrogen production and overall energy efficiency. The key plant performance indicators were calculated for a number of case studies through process flow simulations (ChemCAD).