Chromium catalysts supported on mesoporous silica for ethylene tetramerization: Effect of the porous structure of the supports |
| |
| Affiliation: | 1. College of Material Science and Chemical Engineering, Tianjin University of Science & Technology, Tianjin 300457, China;2. Key Laboratory of Pollution Processes and Environmental Criteria (Nankai University), Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300457, China;1. DCMIC Politecnico di Milano , piazza Leonardo da Vinci 32, Milano 20133, Italy;2. Department of Chemical and Biochemical Engineering, Technical University of Denmark, DK-2800 Kgs Lyngby, Denmark |
| |
| Abstract: | Supported chromium catalysts were prepared by loading Cr(acac)3 and N-isopropyl bis(diphenylphosphino)amine (PNP) onto methylaluminoxane-modified MCM-41 and SBA-15. The structure of supported catalysts was characterized and the influence of the pore structure of supports on the reactivity for ethylene tetramerization was investigated. The results revealed that the chromium was immobilized on the mesoporous silica in different supported patterns, which was affected by the pore size of the supports and affected catalyst performance. The highest selectivity toward 1-octene was provided by the SBA-15-supported Cr(acac)3/PNP catalyst, and this value was higher than that of the homogeneous analogs. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
