Oxidative Dehydrogenation of Isobutane to Isobutene on FSM-16 Doped with Cr and Related Catalysts
Oxidative Dehydrogenation of Isobutane to Isobutene on FSM-16 Doped with Cr and Related Catalysts作者机构:Department of Advanced Materials Institute of Technology and Science The University of Tokushima Tokushima 770-8506Japan Department of Resource Circulation Engineering Center for Frontier Research of Engineering The University of TokushimaTokushima 770-8506 Japan Department of Chemical Science and Technology The University of Tokushima Tokushima 770-8506 Japan Otake Research Laboratories Mitsubishi Rayon Co. Ltd. Hiroshima 739-0693 Japan
出 版 物:《Journal of Chemistry and Chemical Engineering》 (化学与化工(英文版))
年 卷 期:2013年第7卷第11期
页 面:1014-1020页
学科分类:081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 070303[理学-有机化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学]
主 题:Oxidative dehydrogenation isobutane isobutene FSM-16 chromium-doping.
摘 要:The oxidative dehydrogenation of isobutane to isobutene was examined for the use in the preparation of FSM-16 and related compounds doped by chromium with expectations that a yield of isobutene of greater than 8% could be achieved. The activity depended on the molding procedure of the catalyst and the doping method of the chromium species. In the present study, 8.8% and 8.3% of the yield of isobutene were obtained at 0.75 h and 6 h on-stream for the catalyst (Cr-loading; 6.2 wt.%) molded using wet treatment hut not pressurization treatment, in which the chromium species were directly added into the aqueous solution containing raw FSM-16 (hydrated sodium silicate powder) at an initial stage of the catalyst preparation. The structure information was based on XRD (X-ray diffraction), the specific surface area was determined using a conventional BET (Brunauer-Emmett-Teller) nitrogen adsorption and the loading of chromium was estimated using ICP (inductively coupled plasma). All those parameters combined with the molding method indicated that the catalytic activity was more influenced by the loading of chromium into bulk but not on surface of the catalyst rather than by the hexagonal structure of FSM-16 and the surface area.