Adsorption mechanism of a new combined collector (PS-1) on unburned carbon in gasification slag
文献类型：期刊论文
| 作者 | Shi, Da2,3; Zhang, Jianbo3,5; Hou, Xinjuan3,4; Li, Shaopeng3; Li, Huiquan3,4; He, Fayu1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-04-20 |
| 卷号 | 818页码:9 |
| 关键词 | Gasification slag Flotation Adsorption mechanism Molecular dynamics simulation Waste utilization |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.151856 |
| 英文摘要 | Coal gasification fine slag (CGFS) is a type of solid waste produced during coal gasification, in which unburned carbon (UC) severely restricts its resource utilization. The removal of UC from CGFS is considered an urgent problem. This study applies PS-1 (a mixture of kerosene and oleic acid at the ratio of 7:3) to improve the flotation separation effect of carbon from CGFS. The flotation adsorption mechanism of PS-1 on UC is revealed by experiment/ molecular dynamics simulation and characterization analysis. Results show that long-chain hydrocarbons in PS-1 are adsorbed on the non-polar region of UC by Van der Waals force, while -COOH groups in PS-1 are adsorbed on the polar sites of -COOH and -OH of UC by hydrogen bonds. The synergistic effect of long-chain hydrocarbons and -COOH groups in PS-1 improves the hydrophobicity of the UC surface. Compared with traditional collector kerosene, the combustible recovery rate of foam products can be increased to 68.0%. Collector dosage can be reduced by approximately 50% using PS-1. This study can provide essential guidance for the design of CGS flotation collectors and help realize the comprehensive utilization of coal gasification solid waste.(c) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | COAL FLY-ASH ; BENZOHYDROXAMIC ACID ; FLOTATION BEHAVIOR ; RESIDUAL CARBON ; IGCC SLAG ; SEPARATION ; RECOVERY ; ELEMENTS ; PH ; GE |
| 资助项目 | National Natural Science Foundation of China[52174390] ; National Natural Science Foundation of China[51804293] ; National Natural Science Foundation of China[U1810205] ; Strategic Priority Research Programof the Chinese Academy of Sciences China[XDA21040601] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000795457700004 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Programof the Chinese Academy of Sciences China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/53691]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhang, Jianbo |
| 作者单位 | 1.China Minmetals Corp, Beijing 100010, Peoples R China 2.Northeastern Univ, Sch Resources & Civil Engn, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met Reso, CAS Key Lab Green Proc & Engn, Beijing 100090, Peoples R China 4.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Natl Engn Res Ctr Green Recycling Strateg Met Reso, CAS Key Lab Green Proc & Engn, Beijing 100090, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Da,Zhang, Jianbo,Hou, Xinjuan,et al. Adsorption mechanism of a new combined collector (PS-1) on unburned carbon in gasification slag[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,818:9. |
| APA | Shi, Da,Zhang, Jianbo,Hou, Xinjuan,Li, Shaopeng,Li, Huiquan,&He, Fayu.(2022).Adsorption mechanism of a new combined collector (PS-1) on unburned carbon in gasification slag.SCIENCE OF THE TOTAL ENVIRONMENT,818,9. |
| MLA | Shi, Da,et al."Adsorption mechanism of a new combined collector (PS-1) on unburned carbon in gasification slag".SCIENCE OF THE TOTAL ENVIRONMENT 818(2022):9. |
入库方式： OAI收割
来源：过程工程研究所
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