Recovery of high purity elemental sulfur from coal syngas by liquid redox catalytic process using tannin extracts
文献类型：期刊论文
| 作者 | Zhang, Hao1; Hu, Xiaoming2; Liu, Zhichen3; Yang, Xiaoqin4; Yang, Xiao Jin1 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2017-01-20 |
| 卷号 | 142页码:3204-3211 |
| 关键词 | Liquid Redox Catalyst Tannin Extracts Sulfide Oxidation High Purity Sulfur Recovery |
| 英文摘要 | Liquid redox sulfur recovery (LRSR) processes using tannin extracts and vanadium pentoxide as dual redox catalysts are widely employed for removal of hydrogen sulfide and recovery of elemental sulfur from coal syngas in China. Difficulties in melting sulfur pastes, poor quality of sulfur and the running stability are the major concern of the process. In this study, tannin extracts obtained from valonia and black wattle and an industrial benchmark tannin extract designated as the LRSR's catalyst were investigated for their composition and the kinetics of sulfide oxidation. Industry samples of sulfur pastes from the LRSR processes were analyzed. The results demonstrate that the accumulation of impurities of tannin extracts along with. byproducts of sulfide oxidation in scrubbing liquid prevents sulfur froth separation and affects, the purity of sulfur. The pretreatment of sulfur pastes with nitric acid reduces the accumulation of the impurities and improves the purity of sulfur from 60% to 99%, leading to cleaner production of sulfur by the LRSR process. (C) 2016 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38045]  |
| 专题 | 化学研究所_其它 |
| 作者单位 | 1.Beijing Univ Chem Technol, Sch Chem Engn, Beijing Key Lab Membrane Separat Proc & Technol, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 3.Shangdong Lianmeng Chem Grp Co Ltd, Shouguang 262700, Shandong, Peoples R China 4.Hubei Yihua Grp Ltd Liabil Co, Yichang 443000, Hubei Province, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hao,Hu, Xiaoming,Liu, Zhichen,et al. Recovery of high purity elemental sulfur from coal syngas by liquid redox catalytic process using tannin extracts[J]. JOURNAL OF CLEANER PRODUCTION,2017,142:3204-3211. |
| APA | Zhang, Hao,Hu, Xiaoming,Liu, Zhichen,Yang, Xiaoqin,&Yang, Xiao Jin.(2017).Recovery of high purity elemental sulfur from coal syngas by liquid redox catalytic process using tannin extracts.JOURNAL OF CLEANER PRODUCTION,142,3204-3211. |
| MLA | Zhang, Hao,et al."Recovery of high purity elemental sulfur from coal syngas by liquid redox catalytic process using tannin extracts".JOURNAL OF CLEANER PRODUCTION 142(2017):3204-3211. |
入库方式： OAI收割
来源：化学研究所
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