Citation: WEI Xiao-ming, LIU Yun-qi, ZHAO Liang, LIU Chen-guang. Effect of preparation on hydroisodewaxing performance for diesel fuel of NiW/SAPO-11 catalysts[J]. Journal of Fuel Chemistry and Technology, ;2014, 42(12): 1500-1505. shu

Effect of preparation on hydroisodewaxing performance for diesel fuel of NiW/SAPO-11 catalysts

1.
State Key Laboratory of Heavy Oil Processing, Key Laboratory of CNPC Catalysis, China University of Petroleum, Qingdao 266555, China

Corresponding author: LIU Yun-qi,
Received Date: 7 August 2014
Available Online: 17 September 2014
Fund Project: 国家重点基础研究发展规划(973计划, 2010CB226905) (973计划, 2010CB226905) 国家自然科学基金(21006128, U1162203)。 (21006128, U1162203)

Catalysts for hydroisodewaxing were prepared by SAPO-11 zeolite instead of ZSM-5 zeolite with nickel and tungsten as metal components. The catalysts were characterized by using XRD, BET and Py-IR. Using Changqing straight-run diesel oil as raw material, we evaluated the hydroisoderwaxing performance of the NiW/SAPO-11 catalysts prepared by different methods. The catalytic performance evaluation was performed on a pressurized fixed-bed microreactor. The result shows that the NiW/SAPO-11 catalyst prepared by mixing-kneading Ni first and then impregnating W active component has better hydroisodewaxing performance. At the reaction conditions of 340 ℃, 4.0 MPa, LHSV 1.0 h^-1 and hydrogen to oil volume ratio of 500:1, the freezing point of the diesel oil was decreased from 0 ℃ to -28 ℃, and the diesel yield was as high as 96.0%.
- SAPO-11,
- isodewaxing,
- mixing-kneading,
- impregnation
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