| 整体煤气化联合循环系统空分单元集成特性 |
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| 引用本文： | 岳晨,史翊翔,蔡宁生. 整体煤气化联合循环系统空分单元集成特性[J]. 中国电机工程学报, 2010, 0(32) |
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| 作者姓名： | 岳晨 史翊翔 蔡宁生 |
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| 作者单位： | 清华大学热科学与动力工程教育部重点实验室; |
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| 基金项目： | 国家高技术研究发展计划项目(863计划)(2006AA05A108)~~ |
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| 摘 要： | 研究整体煤气化联合循环(integrated gasification combined cycle,IGCC)系统空气分离单元(air separation unit,ASU)的集成特性。对ASU主要操作参数分析结果表明,提高空气压缩机压比会导致空气精馏分离过程困难,消耗的空气压力能有所增加,但是提高空气压缩机压比有利于降低ASU的制氧功耗及提高IGCC系统供电效率。综合考虑IGCC系统NOx排放限制以及制氧比功耗,推荐适合IGCC系统的ASU出口氧气纯度为0.85。对ASU与燃气轮机集成度分析表明,IGCC系统供电效率随着集成度的增加先提高后降低,集成度在0.80时,IGCC系统供电效率最高。另外,与独立空分方案相比,采用整体空分方案的IGCC系统通过开发利用燃气轮机抽气显热,其供电效率有进一步提高的潜力。
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| 关 键 词： | 空气分离单元 整体煤气化联合循环 集成特性 参数分析 |
Integrated Characteristics of Air Separation Unit Scheme in Integrated Gasification Combined Cycle System |
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| YUE Chen,SHI Yixiang,CAI Ningsheng. Integrated Characteristics of Air Separation Unit Scheme in Integrated Gasification Combined Cycle System[J]. Proceedings of the CSEE, 2010, 0(32) |
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| Authors: | YUE Chen SHI Yixiang CAI Ningsheng |
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| Affiliation: | YUE Chen,SHI Yixiang,CAI Ningsheng(Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Haidian District,Beijing 100084,China) |
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| Abstract: | The integrated characteristics of air separation unit(ASU) in integrated gasification combined cycle(IGCC) were analyzed.The results show that increase of air compressor pressure ratio made the air separation process difficult,and caused increase of air pressure potential energy consumption in air distillation separation process.While increased pressure ratio was beneficial to reduce the power consumption for oxygen production and increase the power generation efficiency of IGCC.Comprehensively considering ... |
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| Keywords: | air separation unit(ASU) integrated gasification combined cycle(IGCC) integration performance parameter analysis |
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