Design of a combined heat, hydrogen, and power plant from university campus waste streams

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• 作者：J. Daniel Spencer^a ; Jennie M. Moton^a ; William T. Gibbons^b ; Kyle Gluesenkamp^a ; Islam I. Ahmed^a ; Andrew M. Taverner^c ; Diane McGahagan^a ; Meron Tesfaye^b ; Chetali Gupta^b ; Richard P. Bourne^a ; Viviana Monje^b ; Gregory S. Jackson^a ; ^{gsjackso@mines.edu}
• 关键词：Molten carbonate fuel cell ; Hydrogen ; Combined heat and power ; Waste energy conversion ; Polygeneration
• 刊名：International Journal of Hydrogen Energy
• 出版年：2013
• 出版时间：22 April, 2013
• 年：2013
• 卷：38
• 期：12
• 页码：4889-4900
• 全文大小：696 K

文摘

This paper presents analysis of a combined heat, hydrogen, and power (CHHP) plant for waste-to-energy conversion in response to the 2012 Hydrogen Student Design Contest. Our team designed the CHHP plant centered on a molten carbonate fuel cell (Fuel Cell Energy DFC-1500) fueled by syngas derived primarily from an oxygen-fed municipal waste gasifier. Catalytic methanation and supplemental utility natural gas increase the fuel methane content to meet the DFC-1500 fueling requirements for maintaining stack thermal energy balance. Internal reforming converts excess fuel from the fuel cell to an H₂-rich stream, which is purified downstream in a pressure-swing adsorption system. The separated H₂ (1000?kg per day) is compressed for storage to provide fuel for a campus fleet of PEM fuel cell buses. The system provides more than 1.1?MWe for the campus grid with approximately 20 % of the fuel cell power used for H₂ compression and running the plant. Heat recovery steam generators provide steam for the methanation reactor and 0.4?MW of thermal energy for district heating or steam turbine-driven chillers. Cost analysis indicates that the system requires incentives for economic viability with current estimated operating costs, but advances to reduce capital expenses of comparable urban waste-driven CHHP systems can make them attractive for future implementation.