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Status of an MWth integrated gasification fuel cell powergeneration system in China

International Journal of Coal Science & Technology 2021年第3期8卷 401-411页

作者： Chang Wei Zhien Liu Chufu Li Surinder Singh Haoren Lu Yudong Gong Pingping Li Hanlin Wang Xia Yang Ming Xu Shujun Mu National Institute of Clean-and-Low-Carbon Energy BeijingChina NICE America Research Mountain ViewUSA Nexant San FranciscoUSA

Abstract Here,we provide a status update of an integrated gasification fuel cell(IGFC)power-generation system being developed at the National Institute of Clean-and-Low-Carbon in China at the megawatt thermal(MWth)*** system is designed to use coal as fuel to produce syngas as a first step,similar to that employed for the integrated gasification combined ***,the solid-oxide fuel-cell(SOFC)system is used to convert chemical energy to electricity directly through an electrochemical reaction without *** system leads to higher efficiency as compared with that from a traditional coal-fired power *** unreacted fuel in the SOFC system is transported to an oxygencombustor to be converted to steam and carbon dioxide(CO_(2)).Through a heat-recovery system,the steam is condensed and removed,and CO_(2) is enriched and captured for sequestration or *** economic analyses for a typical IGFC system was performed and the results were compared with those for a supercritical pulverized coal-fired power *** SOFC stacks selected for IGFC development were tested and qualified under hydrogen and simulated coal syngas *** results using SOFC stacks and thermodynamic analyses indicated that the control of hydrogen/CO ratio of syngas and steam/CO ratio is important to avoid carbon deposition with the fuel pipe.A 20-kW SOFC unit is under development with design power output of 20 kW and DC efficiency of 50.41%.A 100 kW-level subsystem will consist of 6920-kW power-generation units,and the MWth IGFC system will consist of 59100 kWlevel subsystems.

关键词： Integrated gasification fuel cell(IGFC) Solid oxide fuel cell Stack module Carbon dioxide capture oxygen-combustor

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