期刊
JOURNAL OF POROUS MATERIALS
卷 20, 期 5, 页码 1195-1204出版社
SPRINGER
DOI: 10.1007/s10934-013-9703-5
关键词
Catalyst; Hydrodesulfurization; Micro-mesoporous composite materials; Beta-MCM-48; Diesel oil
资金
- National Natural Science Foundation of China [21276277, 21073235]
- Opening Project of Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology [2012K01]
- CNPC-Petrochemical Research Institute project
Novel hierachically porous material Beta-MCM-48 was successfully synthesized from Beta zeolite seeds by two-step hydrothermal crystallization method using Cetyltrimethylammonium Bromide as the mesostructure directing agent. Beta-MCM-48 composite synthesized at the optimization conditions possessed Beta microporous structure and cubic Iad mesoporous structure simultaneously. Meanwhile, the acidity of Beta-MCM-48 was similar to Beta zeolite and higher than MCM-48 mesoporous material. A series of Al2O3-Beta-MCM-48 supported NiMo catalysts with different Beta-MCM-48 contents were prepared by the incipient-wetness impregnation method. The catalytic performances were evaluated using DaQing Fluid Catalytic Cracking diesel as feedstock in a high pressure microreactor. Hydrodesulfurization results indicated that NiMo/Al2O3-Beta-MCM-48 catalyst exhibited better activities than that of NiMo/Al2O3 traditional catalyst. NiMo/Al2O3-Beta-MCM-48 catalyst obtained the highest activity as the Beta-MCM-48 content in the support was 20 wt %, and the corresponding sulfur content of the hydrotreated product reached to 23.02 mu g g(-1).
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