CaCO3对无烟煤煤焦气化反应活性的影响

doi:10.12034/j.issn.1009-606X.217182

过程工程学报 ›› 2017, Vol. 17 ›› Issue (6): 1322-1328.DOI: 10.12034/j.issn.1009-606X.217182

• 环境与能源 • 上一篇

CaCO3对无烟煤煤焦气化反应活性的影响

王少龙¹，张鹏飞¹，周松华²，谢燕¹，曹阳¹，敖先权¹^*

1. 贵州大学化学与化工学院，贵州贵阳 550025；2. 贵州天福化工有限责任公司，贵州福泉 550500

收稿日期:2017-03-20 修回日期:2017-04-26 出版日期:2017-12-20 发布日期:2017-12-05
通讯作者: 敖先权 aoxianquan@163.com
基金资助:
贵州省科技厅重大应用基础研究项目;贵州省科技厅重大专项项目

Effect of CaCO3 on Gasification Reactivity of Anthracite Char

Shaolong WANG¹, Pengfei ZHANG¹, Songhua ZHOU², Yan XIE¹, Yang CAO¹, Xianquan AO^1*

1. School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China; 2. Guizhou Tianfu Chemical Co., Ltd., Fuquan, Guizhou 550500, China

Received:2017-03-20 Revised:2017-04-26 Online:2017-12-20 Published:2017-12-05
Contact: AO Xian-quan aoxianquan@163.com

摘要/Abstract

摘要： 以贵州无烟煤为研究对象，利用固定床反应装置研究了CaCO3对煤焦?CO2气化反应活性的影响，对煤焦结构和CaCO3在反应过程中的物相变化及煤焦的表面形貌进行了分析，考察了制焦方式、气化反应温度、CaCO3添加量等因素对气化活性的影响. 结果表明，先制焦再添加CaCO3所得煤焦比先添加CaCO3再制焦所得煤焦的气化活性高，无烟煤的气化活性随CaCO3添加量增加而增大，但添加量大于3.5%(?)后气化活性变化不大；制焦和气化反应过程中，CaCO3与煤中的其它物质反应转变为CaS和CaAl2Si2O8.

关键词: 无烟煤, CaCO3, CO2, 气化活性

Abstract: The influence of CaCO3 on Guizhou anthracite char?CO2 gasification reactivity was studied. The effects of CaCO3 coking method, gasification temperature and addition amount on the gasification reactivity were investigated in a fixed-bed reactor at atmospheric pressure. The calcium forms existing during the coal pyrolysis or char gasification, functional groups of coal char and the surface morphology of coal char were characterize. The results showed that the gasification activity of coke obtained by loading CaCO3 after pyrolysis is higher than that by loading CaCO3 before pyrolysis. The gasification activity increased with the increase of CaCO3 addition, but when the addition amount was more than 3.5%(?), the gasification activity changed little. In the process of pyrolysis and char gasification, CaCO3 will react with other substances in coal and convert to CaS and CaAl2Si2O8.

Key words: anthracite, CaCO3, CO2, gasification reactivity

王少龙张鹏飞周松华谢燕曹阳敖先权. CaCO3对无烟煤煤焦气化反应活性的影响[J]. 过程工程学报, 2017, 17(6): 1322-1328.

Shaolong WANG Pengfei ZHANG Songhua ZHOU Yan XIE Yang CAO Xianquan AO. Effect of CaCO3 on Gasification Reactivity of Anthracite Char[J]. Chin. J. Process Eng., 2017, 17(6): 1322-1328.

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CaCO3对无烟煤煤焦气化反应活性的影响

Effect of CaCO3 on Gasification Reactivity of Anthracite Char

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