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提出一种新颖的基于化学链的氢氧联合动力循环系统,该系统利用透平余热提供化学链中天然气和Fe_2O_4反应热,将余热转换为高品位化学能。系统综合了化学链零能耗分离CO_2和氢氧联合循环高效率的优点。与化学链燃烧联合循环相比,该循环取消了余热锅炉和底循环,系统内能量品位匹配更加合理。根据图像分析方法,阐明了化学链氢氧联合循环中损失减少和余热品位提升的机理。本文对新循环进行了分析,并以常规化学链循环为参照,研究了其性能。新循环的效率较高,同时可以实现CO_2无能耗的分离。
A novel hydrogen-oxygen combined cycle system based on chemical chain is proposed. The system utilizes the turbine residual heat to provide natural gas and Fe 2 O 4 heat of reaction in the chemical chain to convert the waste heat to high-grade chemical energy. The system combines the advantages of high energy efficiency in the separation of CO 2 and hydrogen and oxygen combined with zero energy consumption in the chemical chain. Compared with the chemical chain combustion combined cycle, this cycle cancels the waste heat boiler and the bottom cycle, the system energy grade matching is more reasonable. According to the image analysis method, the mechanism of reducing the loss and improving the grade of residual heat in the combined cycle of hydrogen and oxygen in the chemical chain was clarified. In this paper, the new cycle was analyzed, and the conventional chemical chain cycle as a reference, the study of its performance. The new cycle is more efficient and CO 2 can be separated without energy consumption.