文献类型：期刊文献

英文题名：CuY@NiAl-Layered double oxides bi-functional composites for "Catalytic-Adsorptive" removal of carbonyl sulfide

作者：Wang, Hao[1,2,3];Liu, Chuanlei[1,2,3];Gong, Zijun[4];Jiang, Hao[1,2,3];Gao, Weikang[1,2,3];Guo, Guanchu[1,2,3];Yang, Fengjing[1,2,3];Wu, Qiumin[1,2,3];Mertsoy, Esra Y.[5,6,7];Zhao, Jigang[1,2,3];Liu, Jichang[1,2,3];Ling, Hao;Shen, Benxian;Wu, Di[5,6,7,8,9];Sun, Hui[1,2,3,10]

机构：[1]State Key Lab Green Chem Engn & Ind Catalysis, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, Shanghai 200237, Peoples R China;[4]Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China;[5]Washington State Univ, Alexandra Navrotsky Inst Expt Thermodynam, Pullman, WA 99163 USA;[6]Washington State Univ, Gene & Linda Voiland Sch Chem Engn & Bioengn, Pullman, WA 99163 USA;[7]Cankiri Karatekin Univ, Dept Chem Engn, TR-18100 Cankiri, Turkiye;[8]Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99163 USA;[9]Washington State Univ, Dept Chem, Pullman, WA 99163 USA;[10]Xinjiang Univ, Sch Chem Engn & Technol, Minist Key Lab Oil & Gas Fine Chem, Urumqi 830046, Peoples R China

年份：2024

卷号：493

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20242216187871);WOS:【SCI-EXPANDED(收录号:WOS:001248112400001)】；

基金：This work is supported by the National Natural Science Foundation of China (Grant 22178109 and 21878097) and the Natural Science Foundation of Shanghai (Grant 21ZR1417700) . D.W. acknowledges the institutional funds from the Gene and Linda Voiland School of Chemical Engineering and Bioengineering, and the Alexandra Navrotsky Institute for Experimental Thermodynamics at Washington State University.

语种：英文

外文关键词：COS; Core-shell structure; Bi-functional; Adsorptive desulfurization

摘要：Carbonyl sulfide (COS) removal processes, typically containing catalytic hydrolysis and subsequent capture of hydrogen sulfide (H2S) generated, are energy-intensive and of high complexity. Bi-functional materials with the capability for synergistic catalytic conversion of COS and subsequent adsorption capture of H2S can enable effective removal of COS at low energy cost. Here, we report the development of a bi-functional CuY@NiAl-LDO composite material with integrated catalytic conversion of COS and adsorptive separation of H2S with high efficiency and stability. Fundamental material characterizations elucidate that the CuY@NiAl-LDO composite materials feature a core-shell structure. Coupled dynamic breakthrough experiments and DFT simulations highlight the unique synergistic "catalytic-adsorptive" effect between CuY and NiAl-LDO in the COS removal processes. Specifically, compared with the pure zeolite CuY and NiAl-LDO, the CuY@NiAl-LDO composites present significantly higher COS removal performance. The highest degree of desulfurization was observed on CuY@NiAl-LDO(46 %) at 80 degrees C with a breakthrough sulfur capacity of 20.57 mg-S/g and no detectable H2S in the outlet gas. In sum, this study highlights the synergistic "catalytic-adsorptive" mechanism of the bi-functional CuY@NiAl-LDO core-shell composite in desulfurization. The insights obtained may benefit chemical engineers by providing a new strategy for the development of multi-functional desulfurization materials.