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应用热力学理论,对煤代谢网络中典型的4种代谢模式,即民用燃烧、炼焦、发电和气化多联产,进行了热力学分析,通过热效率、效率的计算找出各个过程的有用能利用薄弱环节,提出可能的改进方法,以提高能量利用效率,进而改善资源利用状况;对比不同过程的能量能质利用情况,说明在能源利用方面,基于煤气化的多联产系统效率更高;未来煤资源利用将会朝着更清洁、更高效的方向,一方面探索新的利用模式,另一方面致力于现有模式能源利用效率的提高。
Based on the thermodynamic theory, thermodynamic analysis of four typical metabolic modes of coal metabolism network, namely, civil combustion, coking, power generation and gasification polygeneration, was carried out. The calculation of thermal efficiency and efficiency showed that the useful energy utilization of each process was weak Link, put forward some possible improvement methods to improve energy efficiency, and then improve the utilization of resources; compare the energy energy utilization of different processes, indicating that in terms of energy use, coal-based polygeneration system is more efficient; future coal Resource utilization will move in a cleaner and more efficient direction, exploring new modes of utilization on the one hand, and improving energy efficiency in existing modes on the other.