Efficient recovery of scrapped V2O5-WO3/TiO2 SCR catalyst by cleaner hydrometalurgical process
文献类型：期刊论文
| 作者 | Lou, Wenbo1,2; Zhang, Yang2; Zheng, Shili2; Li, Ping2; Zhang, Ying2; Zhang, Yi2; Zhao, Bo3; Li, Zhefei3; Jin, Wei2 |
| 刊名 | HYDROMETALLURGY
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 187页码:45-53 |
| 关键词 | Scrapped SCR catalyst Cleaner hydrometallurgical recovery Arsenic removal reaction Restructure Ctalyst regeneration |
| ISSN号 | 0304-386X |
| DOI | 10.1016/j.hydromet.2019.05.003 |
| 英文摘要 | China generates a large number of scrapped selective catalytic reduction (SCR) catalysts in the fossil fuel combustion plants every year. As a result, there is a giant quantity of 5 x 10(5)t scrapped V2O5-WO3/TiO2 SCR catalyst annually worldwide, in which arsenic poisoning is a major cause of catalysts deactivation. In this study, a novel cleaner recovery process of alkaline-acid stepwise leaching was proposed for the high-arsenic scrapped SCR catalysts to achieve excellent arsenic removal and structural reforming. It is found that arsenic can be completely removed from 1.92% to below the detection limit, and the surface area of regenerated catalysts is restored to 31 m(2)/g (similar to that of commercial catalysts). In the subsequent pickling and regeneration, Na+ can be eliminated to obtain anatase-type TiO2 for further activity recovery. Besides, valuable elements (W, V) have been successfully recycled by leaching the As-containing solid waste with ammonium salt. After replenishing active components, regenerated catalyst exhibits comparable activity with the commercial fresh catalyst, offering a promising method for scrapped catalyst recovery and further understanding of cleaner produces for waste management. |
| WOS关键词 | LOW-TEMPERATURE SCR ; V2O5-WO3-TIO2SCR CATALYST ; RAMAN-SPECTRA ; TIO2 CATALYST ; DEACTIVATION ; REGENERATION ; REDUCTION ; MECHANISM ; PERFORMANCE ; ALUNITE |
| 资助项目 | National Natural Science Foundation of China[51674230] ; National Natural Science Foundation of China[51761135108] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000477785100006 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/30360]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhang, Yang; Jin, Wei |
| 作者单位 | 1.Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 3.Zhejiang Tuna Environm Sci & Technol Co Ltd, Shaoxing 312000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lou, Wenbo,Zhang, Yang,Zheng, Shili,et al. Efficient recovery of scrapped V2O5-WO3/TiO2 SCR catalyst by cleaner hydrometalurgical process[J]. HYDROMETALLURGY,2019,187:45-53. |
| APA | Lou, Wenbo.,Zhang, Yang.,Zheng, Shili.,Li, Ping.,Zhang, Ying.,...&Jin, Wei.(2019).Efficient recovery of scrapped V2O5-WO3/TiO2 SCR catalyst by cleaner hydrometalurgical process.HYDROMETALLURGY,187,45-53. |
| MLA | Lou, Wenbo,et al."Efficient recovery of scrapped V2O5-WO3/TiO2 SCR catalyst by cleaner hydrometalurgical process".HYDROMETALLURGY 187(2019):45-53. |
入库方式： OAI收割
来源：过程工程研究所
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