Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent
第25届中国过程控制会议专栏|Updated:2026-01-06
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Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent
Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent
中国化学工程学报(英文版)2016年第6期 页码:811-817
Affiliations:
1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
2. 2 University of Chinese Academy of Sciences,Beijing,China,100049
Author bio:
Funds:
Supported by the joint programof theNational Natural Science of Foundation of China and the Shenhua Group Cooperation Limited (51174284).
Xin Li, Helong Hui, Songgeng Li, 等. Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent[J]. 中国化学工程学报(英文版), 2016,(6):811-817.
Xin Li, Helong Hui, Songgeng Li, et al. Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent[J]. Chinese Journal of Chemical Engineering, 2016, (6): 811-817.
Xin Li, Helong Hui, Songgeng Li, 等. Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent[J]. 中国化学工程学报(英文版), 2016,(6):811-817.DOI: 10.1016/j.cjche.2015.12.020.
Xin Li, Helong Hui, Songgeng Li, et al. Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent[J]. Chinese Journal of Chemical Engineering, 2016, (6): 811-817.DOI: 10.1016/j.cjche.2015.12.020.
Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent
摘要
Abstract
An integrated coal pyrolysis process with iron ore reduction is proposed in this article. As the first step
iron oxide reduction is studied in a fixed bed reactor using simulated coal pyrolysis gas with benzene as a model tar compound. Variables such as reduction temperature
reduction time and benzene concentration are studied. The carbon deposition of benzene results in the retarded iron reduction at low temperatures. At high temperatures over 800℃
the presence of benzene in the gas can promote iron reduction. The metallization can reach up to 99% in 20 min at 900℃ in the presence of benzene. Significant increases of hydrogen and CO/CO
2
ratio are observed in the gas. It is indicated that iron reduction is accompanied by the reforming and decomposition of benzene. The degree of metallization and reduction increases with the increasing benzene concentration. Iron oxide can nearly completely be converted into cementite with benzene present in the gas under the experimental conditions. No sintering is found in the reduced sample with benzene in the gas.
关键词
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