温度对铬革屑热解产物及特性的影响

doi:10.3969/j.issn.0438-1157.2014.08.041

化工学报 ›› 2014, Vol. 65 ›› Issue (8): 3152-3158.DOI: 10.3969/j.issn.0438-1157.2014.08.041

温度对铬革屑热解产物及特性的影响

王海宁, 张世红, 李攀, 杨海平, 王贤华, 陈汉平

华中科技大学煤燃烧国家重点实验室, 湖北武汉 430074

收稿日期:2013-11-11 修回日期:2014-02-10 出版日期:2014-08-05 发布日期:2014-08-05
通讯作者: 张世红
基金资助:
国家高技术研究发展计划项目（2012AA051803）；国家重点基础研究发展计划项目（2013CB228102）；国家自然科学基金项目（51276075）。

Effects of temperature on pyrolysis products and characteristics of chrome shavings

WANG Haining, ZHANG Shihong, LI Pan, YANG Haiping, WANG Xianhua, CHEN Hanping

State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China

Received:2013-11-11 Revised:2014-02-10 Online:2014-08-05 Published:2014-08-05
Supported by:
supported by the National High Technology Research and Development Program of China (2012AA051803), the National Basic Research Program of China(2013CB228102) and the National Natural Science Foundation of China(51276075).

摘要/Abstract

摘要： 在热解终温为350～750℃的条件下，对铬革屑的热解产物及其特性进行研究，为其热解资源化利用提供实验支持。结果表明，550℃条件下热解液体产率最高，为46.82%。750℃条件下热解气体产率上升显著，热解气热值随温度的升高而上升。热解液体产物主要为含N类及N/O类物质。随热解温度的升高，液体产物含氧量明显降低。固体产物有机官能团迅速减少，C含量上升，同时六价铬含量迅速下降，绝大部分铬富集于热解焦。

关键词: 铬革屑, 热解, 温度, 产物特性

Abstract: To provide experimental supports for resource utilization of chrome shavings, a small-scale external heated fixed bed pyrolyer was used to study the effects of temperature on its pyrolysis products and characteristics. The temperature range of experiment was 350℃ to 750℃. The results showed that the maximum liquid yield was 46.82% at 550℃. With rising temperature until to 750℃, gas yield increased significantly, and its calorific became also higher. The main ingredients in liquid product were N-and N/O-containing compounds. The oxygen content in liquid products decreased obviously with temperature increasing, and that of hexavalent chromium did rapidly and the most stayed in pyrolysis char. Organic functional groups in solid products decreased dramatically when the temperature getting higher, while carbon content increased.

Key words: chrome shaving, pyrolysis, temperature, characteristics of products

中图分类号:

X794

王海宁, 张世红, 李攀, 杨海平, 王贤华, 陈汉平. 温度对铬革屑热解产物及特性的影响[J]. 化工学报, 2014, 65(8): 3152-3158.

WANG Haining, ZHANG Shihong, LI Pan, YANG Haiping, WANG Xianhua, CHEN Hanping. Effects of temperature on pyrolysis products and characteristics of chrome shavings[J]. CIESC Journal, 2014, 65(8): 3152-3158.

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温度对铬革屑热解产物及特性的影响

Effects of temperature on pyrolysis products and characteristics of chrome shavings

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