Knowledge Management System Of Institute of process engineering,CAS
| Calcined ZnNiAl hydrotalcite-like compounds as bifunctional catalysts for carbonyl sulfide removal | |
| Zhao, Shunzheng1,2; Yi, Honghong1,2; Tang, Xiaolong1,2; Kang, Dongjuan3; Gao, Fengyu1; Wang, Jiangen1; Huang, Yonghai1; Yang, Zhongyu1 | |
| 2019-05-01 | |
| Conference Name | 18th National Congress on Catalysis of China (NCC) |
| Source Publication | CATALYSIS TODAY |
| Volume | 327 |
| Pages | 161-167 |
| Conference Date | OCT 16-20, 2017 |
| Conference Place | Tianjin Univ, Tianjin, PEOPLES R CHINA |
| Author of Source | Catalysis Soc China, Hebei Univ Technol, China Natl Offshore Oil Corp, Tianjin Res & Design Inst Chem Ind |
| Funding Organization | China Postdoctoral Science Foundation ; Fundamental Research Funds for the Central Universities |
| Publisher | ELSEVIER SCIENCE BV |
| Abstract | The demand for a healthy environment and clean energy has been triggering the study on the preparation of excellent catalysts for the removal of sulfur-containing compounds. In this work, the removal of carbonyl sulfide (COS) from gas streams using Zn/Ni/Al hydrotalcite-derived oxide (HTO) was investigated. In particular, the structure, acid-base properties, and catalytic activity of catalysts prepared under different conditions were measured. A combination of experimental and theoretical methods, including X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), CO2 temperature programmed desorption (TPD), N-2 adsorption-desorption techniques, and density functional theory calculations, were used to elucidate the removal of COS use Zn/Ni/Al HTO. Experimental results indicated that Zn/Ni/Al HTO had relatively high activity for the removal of COS. The density functional theory calculations revealed that "many defects" existed on the Ni3AlO4 (001) plane of crystal, which brought more active centers for the chemical adsorption and hydrolysis of COS. Elemental sulfur, metal sulfide, and sulfate were the final product of COS removal. The consumption of basic sites, as well as the blocking of pores, was considered as the main reason for catalyst deactivation. |
| Keyword | Carbonyl sulfide Hydrotalcite-like compounds Mixed metal oxides Deactivation |
| DOI | 10.1016/j.cattod.2018.05.011 |
| Funding Project | China Postdoctoral Science Foundation[2016M600045] ; Fundamental Research Funds for the Central Universities[FRF-TP-16-060A1] |
| Language | 英语 |
| WOS Research Area | Chemistry ; Engineering |
| WOS Subject | Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical |
| WOS ID | WOS:000459892900017 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/28944 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Yi, Honghong |
| Affiliation | 1.Univ Sci & Technol Beijing, Dept Environm Engn, Beijing 100083, Peoples R China 2.Beijing Key Lab Resource Oriented Treatment Ind P, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Zhao, Shunzheng,Yi, Honghong,Tang, Xiaolong,et al. Calcined ZnNiAl hydrotalcite-like compounds as bifunctional catalysts for carbonyl sulfide removal[C]//Catalysis Soc China, Hebei Univ Technol, China Natl Offshore Oil Corp, Tianjin Res & Design Inst Chem Ind:ELSEVIER SCIENCE BV,2019:161-167. |
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