Synthesis and catalytic performance of novel hierachically porous material beta-MCM-48 for diesel hydrodesulfurization

被引:22
作者
Duan, Aijun [1 ]
Wang, Chengyin [1 ]
Zhao, Zhen [1 ]
Tong, Zhangfa [2 ]
Li, Tianshu [1 ]
Wu, Huadong [1 ]
Fan, Huili [1 ]
Jiang, Guiyuan [1 ]
Liu, Jian [1 ]
机构
[1] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
[2] Guangxi Univ, Guangxi Key Lab Petrochem Resource Proc & Proc In, Nanning 530004, Peoples R China
基金
中国国家自然科学基金;
关键词
Catalyst; Hydrodesulfurization; Micro-mesoporous composite materials; Beta-MCM-48; Diesel oil; ZEOLITE-BETA; MESOPOROUS MATERIALS; COMPOSITE-MATERIAL; MOLECULAR-SIEVES; MCM-48; PHASES; SEEDS; NANOPARTICLES; SILICATES; STABILITY;
D O I
10.1007/s10934-013-9703-5
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
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).
引用
收藏
页码:1195 / 1204
页数:10
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