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基于煤炭分级转化、成分对口应用、污染物控制一体化等系统集成思路,提出了一种捕获CO_2的部分煤气化氢电联产系统。该系统利用增压流化床完成煤炭部分气化,降低了气化难度与气化炉造价,具有较好经济性;全面揭示了系统的热力和环境特性规律,指出气化炉碳转化率是影响系统热力性能的主要因素;系统具有良好的热力特性与环境特性,当CO_2的分离率为59.7%时,系统(火用)效率为54.3%。本文的研究为煤炭的清洁高效利用提供了可选择的途径。
Based on the idea of system integration such as coal staged conversion, component counterparts application and pollutant control integration, a partial coal gasification hydrogen-electricity generation system for CO2 capture was proposed. The system uses supercharged fluidized bed to complete partial gasification of coal, reducing gasification difficulty and gasifier cost, and has good economy; comprehensively reveals the characteristics of the system’s thermal and environmental characteristics, pointing out that the gasifier carbon conversion rate is The main factors affecting the thermal performance of the system are that the system has good thermal and environmental characteristics. When the CO 2 separation rate is 59.7%, the exergy efficiency is 54.3%. The research in this paper provides an alternative way for the clean and efficient utilization of coal.