Carbon consumption and regeneration of oxygen-containing functional groups on activated carbon for flue gas purification
文献类型：期刊论文
| 作者 | Li, Yuran1; Lin, Yuting1; Guo, Junxiang1; Xu, Zhicheng1; Wang, Bin1; Zhu, Tingyu1,2 |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2021-12-02 |
| 页码 | 14 |
| 关键词 | Activated carbon Carbon consumption Cyclic adsorption-regeneration Decomposition of functional groups Carbon dioxide |
| ISSN号 | 0944-1344 |
| DOI | 10.1007/s11356-021-17724-8 |
| 英文摘要 | High carbon consumption is an important factor restricting the wide application of activated carbon technology for flue gas purification. A fixed-bed reactor combined with a Fourier transform infrared (FTIR) spectrometer was used to explore the source of carbon consumption at various SO2 concentrations and cyclic adsorption-regeneration times. The results demonstrate that carbon consumption originates from two sources and is mainly determined by the reaction of H2SO4 and C at high SO2 concentrations and by the thermal decomposition of oxygen-containing functional groups at low SO2 concentrations. An interesting observed phenomenon is that carbon consumption does not increase as the SO2 concentration increases. The conversion mechanism reveals that carboxylic and anhydride groups are converted to phenol and quinone groups, which do not easily decompose with increasing SO2 concentration. In the process of cyclic adsorption-regeneration, it is discovered that the carbon consumption in the first cycle is several times higher than that in the following cycles due to the decomposition of functional groups from the activated carbon itself. The regeneration mechanism of functional groups has been elucidated. The carboxylic acid and the phenolic hydroxyl on the surface of activated carbon are consumed in the regeneration process and formed again from the conversion of carbonyl groups in the next adsorption process under the roles of O-2 and H2O. It is proposed that the functional groups are regenerated in the adsorption process rather than in the regeneration process. |
| WOS关键词 | SELECTIVE CATALYTIC-REDUCTION ; SO2 REMOVAL ; SEMI-COKE ; MERCURY CAPTURE ; SULFUR-OXIDES ; ADSORPTION ; NO ; DESULFURIZATION ; DENITROGENATION ; PERFORMANCE |
| 资助项目 | National Key R&D Program of China[2017YFC0210203] ; National Natural Science Foundation of China[U1810209] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000725470500013 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/51300]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Yuran; Zhu, Tingyu |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Green Manufacture, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yuran,Lin, Yuting,Guo, Junxiang,et al. Carbon consumption and regeneration of oxygen-containing functional groups on activated carbon for flue gas purification[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021:14. |
| APA | Li, Yuran,Lin, Yuting,Guo, Junxiang,Xu, Zhicheng,Wang, Bin,&Zhu, Tingyu.(2021).Carbon consumption and regeneration of oxygen-containing functional groups on activated carbon for flue gas purification.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,14. |
| MLA | Li, Yuran,et al."Carbon consumption and regeneration of oxygen-containing functional groups on activated carbon for flue gas purification".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021):14. |
入库方式： OAI收割
来源：过程工程研究所
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