原位煤气化化学链燃烧发电系统的过程模拟  

Process Simulation of In-situ Coal Gasification Chemical Looping Combustion Power Generation System

作　　者：王小雨[1,2,3] 赵海波 WANG Xiaoyu;ZHAO Haibo(School of Intelligent Manufacturing,Jianghan University,Wuhan 430056,China;State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China;Hubei Key Laboratory of Industrial and Dust Pollution Control,Jianghan University,Wuhan 430056,China)

机构地区：[1]江汉大学智能制造学院,武汉430056 [2]华中科技大学煤燃烧国家重点实验室,武汉430074 [3]汉江大学工业烟尘污染控制湖北省重点实验室,武汉430056

出　　处：《动力工程学报》2024年第7期1026-1032,共7页Journal of Chinese Society of Power Engineering

基　　金：湖北省教育厅科学研究计划指导性项目(B2022277);工业烟尘污染控制湖北省重点实验室开放课题(HBIK2023-07)。

摘　　要：运用Aspen Plus软件构建了以Fe_(2)O_(3)/FeO为氧载体的600 MW原位煤气化化学链燃烧发电系统。基于系统的仿真结果,分别进行了能量、[火用]和[火用]成本分析。结果表明:原位煤气化化学链燃烧发电系统的净热效率为35.38%;系统中内部[火用]损失最大的组件为空气反应器,占原位煤气化化学链燃烧子系统组件总内部[火用]损失的28.39%;水汽系统总内部[火用]损失在整个系统中占比较小,仅为化学链燃烧子系统的14%;原位煤气化化学链燃烧发电系统中单位[火用]成本最大的组件为空气预热器,其值为3.88,再热器、省煤器和过热器的产品单位[火用]成本也较大。A 600 MW in-situ coal gasification chemical looping combustion(iG-CLC)power generation system using Fe_(2)O_(3)/FeO as oxygen carrier was constructed by Aspen Plus software.Based on the simulation results of the system,the energy,exergy and exergy cost were analyzed respectively.Results show that the net thermal efficiency of iG-CLC power generation system is 35.38%.The component with the maximum internal exergy loss in the system is the air reactor,which accounts for 28.39% of the total exergy loss of iG-CLC subsystem components.Total internal exergy loss of the water vapor system is relatively small in the entire system,and is only 14%of the chemical looping combustion subsystem.The maximum unit exergy cost is 3.88 for air preheater in the iG-CLC power generation system,while the unit exergy costs of reheater,economizer and superheater are also larger.

关 键 词：原位煤气化化学链燃烧发电系统 [火用]分析 [火用]成本分析 仿真模拟 

分 类 号：TK12[动力工程及工程热物理—工程热物理]