文献类型：期刊文献

英文题名：Upgrading of Light Cycle Oil to High-Octane Gasoline through Selective Hydrocracking over Non-Noble Metal Bifunctional Catalysts

作者：Peng, Chong[1,2];Zhou, Zhiming[1];Cheng, Zhenmin[1];Fang, Xiangchen[2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]SINOPEC, Dalian Res Inst Petr & Petrochem, Dalian 116000, Peoples R China

年份：2019

卷号：33

期号：2

起止页码：1090

外文期刊名：ENERGY & FUELS

收录：;EI(收录号：20191006585627);WOS:【SCI-EXPANDED(收录号:WOS:000459836800046)】；

基金：The authors thank the financial support from Open Project of State Key Laboratory of Chemical Engineering (SKLChE-18C04) and Dalian Youth Science and Technology Star (2017RQ085).

语种：英文

外文关键词：Precious metals - Gasoline - Hydrocracking

摘要：Three non-noble metal bifunctional catalysts (Ni-W/H beta-Al2O3, Ni-W/HY-Al2O3, and Ni-Mo/HY-Al2O3) were prepared and applied to the selective hydrocracking of light cycle oil (LCO) into high-octane gasoline. The structures of catalysts were characterized by various techniques, and the catalytic performances were tested at 400 degrees C, 8.0 MPa, and a liquid hourly space velocity of 0.8 h(-1) using a once-through mode at a pilot-scale reactor. Among the three catalysts, Ni-Mo/HY-Al2O3 showed the highest yield of gasoline (43.4 wt % in which aromatics accounted for 31.6%) and highest research octane number (RON, around 85), which were mainly due to high total acidity, high surface area, and homogeneous distribution of the active phase on the catalyst. In a long-term test (3200 h), with a partial recycle mode at the pilot reactor, Ni-Mo/HY-Al2O3 exhibited a high and stable gasoline yield (about 53 wt %) with a RON of 92-95, indicating its high performance for the selective hydrocracking of LCO. This catalyst was eventually commercialized in a refinery, which gave rise to a stable gasoline yield of about 40 wt % with a RON of 91 during 250 days on stream. Moreover, the chemical and structural properties of the used catalyst were preserved.