Chemical looping technology for clean and highly efficient coal processes

doi:10.11949/j.issn.0438-1157.20180436

Abstract

Abstract:

Chemical looping process is characteristic of a reaction loop consisting of several sub-reactions through the reaction and regeneration of looping materials, to realize efficient conversion of resources and low consumption of product separation. Used in clean coal utilization, chemical looping process may reduce exergy loss, achieve low CO₂ capture consumption and suppress NO_x production. It has great potential for oxygen production, hydrogen production, power generation, and chemical production processes. As the research progresses further, chemical looping technology will likely become an innovative technology with distinctive features in coal clean utilization.

Key words: chemical looping, chemical looping gasification, CO₂ capture, energy saving and emission reduction, process systems

摘要：

化学链技术通过循环物质的反应与再生将特定反应分为几个子反应，以实现资源的定向转化与产物的低耗分离。化学链技术用于煤炭资源的清洁利用可以降低（火用）损、实现CO₂低耗捕集、同时抑制NO_x产生，在制氧、制氢、发电、化学品生产工艺中有非常大的潜力。本文重点评述和展望了将化学链技术集成应用于IGCC发电以及新型煤化工这两个重要领域。随着研究的进一步深入，化学链技术将有可能成为煤清洁利用中具有特色的创新性技术。

关键词: 化学链, 化学链气化, 二氧化碳捕集, 节能减排, 过程系统

CLC Number:

SHI Xiaofei, YANG Siyu, QIAN Yu. Chemical looping technology for clean and highly efficient coal processes[J]. CIESC Journal, 2018, 69(12): 4931-4946.

史晓斐, 杨思宇, 钱宇. 化学链技术在煤炭清洁高效利用中的研究进展[J]. 化工学报, 2018, 69(12): 4931-4946.

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