反应压力对Ni基与Cu-Fe基混合装填载氧体还原性能的影响

doi:10.12034/j.issn.1009-606X.217404

过程工程学报 ›› 2018, Vol. 18 ›› Issue (4): 750-756.DOI: 10.12034/j.issn.1009-606X.217404

反应压力对Ni基与Cu-Fe基混合装填载氧体还原性能的影响

田强1，车立新2，丁斌2，石书强2，苏庆泉1,3?

1. 北京科技大学能源与环境工程学院热科学与能源工程系，北京 100083
2. 北京燃气集团有限公司，北京 100035
3. 北京科技大学冶金工业节能减排北京市重点实验室，北京 100083

收稿日期:2017-11-29 修回日期:2018-01-08 出版日期:2018-08-22 发布日期:2018-08-15
通讯作者: 苏庆泉 suqingquan@ustb.edu.cn
基金资助:
北京市科技基金资助项目

Effect of pressure on the reduction performance of the mixture of Ni-based oxygen carrier and Cu?Fe-based oxygen carrier

Qiang TIAN1, Lixin CHE2, Bin DING2, Shuqiang SHI2, Qingquan SU1,3?

1. School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
2. Beijing Gas Group Co., Ltd., Beijing 100035, China
3. Beijing Key Laboratory of Energy Saving and Emission Reduction in Metallurgical Industry, University of Science and Technology
Beijing, Beijing 100083, China

Received:2017-11-29 Revised:2018-01-08 Online:2018-08-22 Published:2018-08-15
Contact: SU Qing-quan suqingquan@ustb.edu.cn

摘要/Abstract

摘要： 提出将CH4重整融入载氧体还原反应过程的固定床化学链燃烧新工艺，将Ni基载氧体与Cu?Fe基载氧体混合作为装填载氧体，考察了反应压力对其低温反应活性的影响. 结果表明，固相载氧体转化率和气相CH4转化率均随压力升高而增大，工作温度下限从0.1 MPa下的600℃降至0.9 MPa下的525℃, 900℃下20次循环的压力损失在0.9 MPa下较0.1 MPa下增加快，但载氧体性能未劣化，也未出现明显的积碳和烧结.

关键词: 化学链燃烧, Ni-Cu-Fe混合载氧体, 高压反应, 循环寿命, 工作温度窗口

Abstract: A new chemical-looping combustion process based on fixed beds, which was characterised by integrating methane steam reforming into the reduction step, were proposed. A mixture of Ni-based oxygen carrier and Cu?Fe-based oxygen carrier was prepared and its low temperature reduction performance was investigated at different pressures. The results showed that the conversion rates of oxygen carrier and CH4 were both improved with elevating reaction pressure. The lower limit temperature of the operation was lowered from 600℃ at 0.1 MPa to 525℃ at 0.9 MPa. In addition, after 20 cycle at 900℃, the performance of oxygen carrier did not degrade and no carbon deposition and sintering occurred, although the pressure drop in the oxidation step increased faster at 0.9 MPa than that at 0.1 MPa.

Key words: Chemical-looping combustion, Cu-Fe-based Oxygen carrier, High pressure reaction, Cycle life, Operating temperature window.

田强车立新丁斌石书强苏庆泉. 反应压力对Ni基与Cu-Fe基混合装填载氧体还原性能的影响[J]. 过程工程学报, 2018, 18(4): 750-756.

Qiang TIAN Lixin CHE Bin DING Shuqiang SHI Qingquan SU. Effect of pressure on the reduction performance of the mixture of Ni-based oxygen carrier and Cu?Fe-based oxygen carrier[J]. Chin. J. Process Eng., 2018, 18(4): 750-756.

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反应压力对Ni基与Cu-Fe基混合装填载氧体还原性能的影响

Effect of pressure on the reduction performance of the mixture of Ni-based oxygen carrier and Cu?Fe-based oxygen carrier

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