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首页> 外文期刊>Applied Energy >Process development for integrated coal gasification solid oxide fuel cells hybrid power plants - Investigations on solid oxide fuel cells/gas turbine hybrid power plants run on clean coal gas
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Process development for integrated coal gasification solid oxide fuel cells hybrid power plants - Investigations on solid oxide fuel cells/gas turbine hybrid power plants run on clean coal gas

机译：综合煤气化固体氧化物燃料电池混合动力厂的工艺开发 - 对固体氧化物燃料电池/燃气涡轮机杂交电厂在洁净煤气中的研究

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摘要

On the road to sustainable generation of electricity, the efficiency of fossil-fuel power plants and CO2 emissions must be increased and decreased respectively. Integrated coal gasification solid oxide fuel cell hybrid power plants have the potential to achieve high power plant efficiencies and enable opportunities for the efficient capture of CO2. The investigation of such power plants is the subject of this publication. The developed systems are based on conventional integrated coal gasification combined cycle technology and integrated with solid oxide fuel cells preceding the combined cycle process. The state of development of the selected solid oxide fuel cell technology is similar to that of integrated coal gasification combined cycles. Along with the base case, several other concepts with and without CO2 capture are developed susing various process technologies. Fundamental system and sensitivity analyses are performed using simplified sub-processes to obtain general statements and trends as well as to calculate optimal boundary conditions for the overall systems. The simulations show that the preparation of process gas using a water gas shift reactor before entering the solid oxide fuel cells is beneficial for the overall efficiency. If a CO2 capture process is included, 11-16% lower net efficiencies are achieved. The level of specific CO2 emissions is significantly influenced by the net efficiency of the power plants and the portion of carbon bound as CO2 at the beginning of the CO2 capture process. Here, the combination of CO2 capture and water gas shift reactor upstream of the solid oxide fuel cells is the preferred concept regarding efficiency and CO2 emissions.
机译：在可持续发电的道路上，必须分别增加和减少化石燃料发电厂和二氧化碳排放的效率。综合煤气化固体氧化物燃料电池混合动力厂有可能实现高电厂效率，并为有效捕获二氧化碳捕获机会。对这种发电厂的调查是本出版物的主题。开发系统基于传统的煤气化联合循环技术，并与在组合循环过程之前的固体氧化物燃料电池集成。所选择的固体氧化物燃料电池技术的发展状态类似于综合煤气化联合循环的状态。除了基础情况之外，还开发了具有和没有CO2捕获的其他几种概念，由各种过程技术开发出来。使用简化的子进程进行基本系统和敏感性分析，以获得一般陈述和趋势，以及计算整个系统的最佳边界条件。该模拟表明，在进入固体氧化物燃料电池之前，使用水煤气换体反应器的制备是有益的。如果包括CO2捕获过程，则实现11-16％的净效率。特定二氧化碳排放的水平受到电厂净效率的显着影响，并且在二氧化碳捕获过程开始时作为CO 2结合的碳部分。这里，固体氧化物燃料电池上游的CO 2捕获和水气体移位反应器的组合是关于效率和二氧化碳排放的优选概念。

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