Exploration on the action mechanism of microwave with peroxyacetic acid in the process of coal desulfurization
文献类型：期刊论文
| ; | |
| 作者 | Tang, LF; Chen, SJ ; Wang, SW; Tao, XX; He, H; Feng, L; Zheng, L; Ma, CY; Zhao, YD; Zheng L(郑雷)
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| 刊名 | FUEL
 ; FUEL
|
| 出版日期 | 2018 ; 2018 |
| 卷号 | 214页码:554-560 |
| 关键词 | Desulfurization Desulfurization Microwave High-sulfur coal Sulfur-containing model compounds Microwave High-sulfur coal Sulfur-containing model compounds |
| ISSN号 | 0016-2361 ; 0016-2361 |
| DOI | 10.1016/j.fuel.2017.10.087 ; 10.1016/j.fuel.2017.10.087 |
| 文献子类 | Article ; Article |
| 英文摘要 | To clarify the action mechanisms of microwave field with peroxyacetic acid in the process of sulfur removal from coal, this study was carried out on the molecular level and diphenyl sulfide was selected as the sulfur model compound of coal. Its oxidation reaction path was determined utilizing XANES and GC/MS. The transmission reflection method was adopted to analyze the dielectric property of the substances detected before. Their CeS bond dissociation energies (BDEs), bond dissociation times (BDTs) and the intrinsic reaction coordinate of de-sulfurization reactions were calculated under various extra electric fields to support the experimental results. Results showed that most of diphenyl sulfide was oxidized to the corresponding sulfoxide and sulfone, resulting in a desulfurization degree of 22.37% after microwaving treatment at 500W for 120 s combined with peroxyacetic acid. With the oxidation degree deepening, the absorption efficiency of microwave energy for sulfur groups increased and their CeS BDEs decreased, resulting in the reducing of their CeS BDTs. In addition, the CeS BDTs and the barrier of desulfurization reactions were reduced under the extra electric field. These findings confirmed that the sulfur-containing bonds cleavage and desulfurization reactions of sulfur groups were promoted under the extra microwave field with peroxyacetic acid, which is conducive to the effective removal of sulfur groups from coal.; To clarify the action mechanisms of microwave field with peroxyacetic acid in the process of sulfur removal from coal, this study was carried out on the molecular level and diphenyl sulfide was selected as the sulfur model compound of coal. Its oxidation reaction path was determined utilizing XANES and GC/MS. The transmission reflection method was adopted to analyze the dielectric property of the substances detected before. Their CeS bond dissociation energies (BDEs), bond dissociation times (BDTs) and the intrinsic reaction coordinate of de-sulfurization reactions were calculated under various extra electric fields to support the experimental results. Results showed that most of diphenyl sulfide was oxidized to the corresponding sulfoxide and sulfone, resulting in a desulfurization degree of 22.37% after microwaving treatment at 500W for 120 s combined with peroxyacetic acid. With the oxidation degree deepening, the absorption efficiency of microwave energy for sulfur groups increased and their CeS BDEs decreased, resulting in the reducing of their CeS BDTs. In addition, the CeS BDTs and the barrier of desulfurization reactions were reduced under the extra electric field. These findings confirmed that the sulfur-containing bonds cleavage and desulfurization reactions of sulfur groups were promoted under the extra microwave field with peroxyacetic acid, which is conducive to the effective removal of sulfur groups from coal. |
| 电子版国际标准刊号 | 1873-7153 ; 1873-7153 |
| WOS关键词 | HIGH-SULFUR COAL ; HIGH-SULFUR COAL ; BOND-DISSOCIATION ENTHALPIES ; ELECTRON-TRANSFER PROCESS ; ORGANIC SULFUR ; MODEL COMPOUNDS ; AB-INITIO ; CHEMICAL DESULFURIZATION ; DIELECTRIC-PROPERTIES ; PYROLYSIS ; OXIDATION ; BOND-DISSOCIATION ENTHALPIES ; ELECTRON-TRANSFER PROCESS ; ORGANIC SULFUR ; MODEL COMPOUNDS ; AB-INITIO ; CHEMICAL DESULFURIZATION ; DIELECTRIC-PROPERTIES ; PYROLYSIS ; OXIDATION |
| WOS研究方向 | Energy & Fuels ; Energy & Fuels ; Engineering ; Engineering |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000417103800059 ; WOS:000417103800059 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285501]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_实验物理中心 高能物理研究所_东莞分部 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Tang, LF,Chen, SJ,Wang, SW,et al. Exploration on the action mechanism of microwave with peroxyacetic acid in the process of coal desulfurization, Exploration on the action mechanism of microwave with peroxyacetic acid in the process of coal desulfurization[J]. FUEL, FUEL,2018, 2018,214, 214:554-560, 554-560. |
| APA | Tang, LF.,Chen, SJ.,Wang, SW.,Tao, XX.,He, H.,...&赵屹东.(2018).Exploration on the action mechanism of microwave with peroxyacetic acid in the process of coal desulfurization.FUEL,214,554-560. |
| MLA | Tang, LF,et al."Exploration on the action mechanism of microwave with peroxyacetic acid in the process of coal desulfurization".FUEL 214(2018):554-560. |
入库方式： OAI收割
来源：高能物理研究所
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