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Title:
OPTIMIZED DIESEL HYDROCRACKING CATALYST CARRIER AND METHOD FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2018/192519
Kind Code:
A1
Abstract:
An optimized diesel hydrocracking catalyst carrier and a method for preparing same. Raw materials of the carrier comprise the following components in percentage by weight: 1-35% of modified molecular sieve, 3-75% of γ-Al2O3, 15-75% of amorphous silica-alumina, and 9-40% of binder. The specific surface area of the carrier is 200-450 m2/g, and the total pore volume is 0.35-0.75 cm3/g. A modified molecular sieve is added to an inorganic aluminum salt solution used for preparing γ-Al2O3, and precipitation, drying, and roasting are performed to obtain a composite of molecular sieve and γ-Al2O3; then the remaining materials are mixed with the composite according to the material proportion of the catalyst carrier, and rolling, forming, drying, and activation are performed to obtain the catalyst carrier. The molecular sieve in the carrier has a high silica/alumina ratio and high specific surface area, and is highly dispersed in the carrier; thus, the carrier has more uniform acid sites, and alumina is in closer contact with the molecular sieve. A prepared hydrocracking catalyst can remarkably reduce the pour point of a diesel fraction and improve the cetane number of diesel while guaranteeing a high diesel yield.

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Inventors:
MING WEIXING (CN)
SHI YOULIANG (CN)
XU LI (CN)
YANG WEIGUANG (CN)
LAI BO (CN)
WANG CHUNFENG (CN)
Application Number:
PCT/CN2018/083502
Publication Date:
October 25, 2018
Filing Date:
April 18, 2018
Export Citation:
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Assignee:
WUHAN KAIDI ENG TECH RES INST (CN)
International Classes:
B01J32/00; B01J29/70; C10G47/16
Foreign References:
CN106964397A2017-07-21
CN107051575A2017-08-18
CN101450319A2009-06-10
CN103100437A2013-05-15
CN101380588A2009-03-11
CN102049283A2011-05-11
US5030780A1991-07-09
Attorney, Agent or Firm:
WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD. (CN)
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