Title:
IMPROVED DIESEL HYDROCRACKING CATALYST CARRIER AND METHOD FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2018/192516
Kind Code:
A1
Abstract:
An improved diesel hydrocracking catalyst carrier and a method for preparing same. Raw materials of the carrier comprise the following components in percentage by weight: 3-35% of molecular sieve, 5-75% of γ-Al2O3, 15-75% of amorphous silica-alumina, and 7-40% 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. During preparation of a composite of molecular sieve and alumina, a molecular sieve without removing a templating agent is added; in a mixed liquid, NH4+ which is generated by means of reaction of an aluminum salt and ammonia water and alkali Na+ which balances negative charges of a molecular sieve framework are exchanged; during roasting, an organic templating agent and NH4+ in the molecular sieve are removed, so that ammonium exchange and templating agent removal of a zeolite molecular sieve are completed during preparation of the composite, without separately performing templating agent removal and ammonium exchange on the molecular sieve. The templating agent has supporting and protecting effects on the pore structure of the molecular sieve. A hydrocracking catalyst prepared using the carrier can remarkably reduce the pour point of a diesel fraction and improve the cetane number of diesel while guaranteeing a high diesel yield.
Inventors:
MING WEIXING (CN)
LAI BO (CN)
YANG WEIGUANG (CN)
XU TIAN (CN)
LAI BO (CN)
YANG WEIGUANG (CN)
XU TIAN (CN)
Application Number:
PCT/CN2018/083493
Publication Date:
October 25, 2018
Filing Date:
April 18, 2018
Export Citation:
Assignee:
WUHAN KAIDI ENG TECH RES INST (CN)
International Classes:
B01J32/00; B01J29/06; C10G47/20
Foreign References:
| CN101450319A | 2009-06-10 | |||
| CN102049283A | 2011-05-11 | |||
| CN101380588A | 2009-03-11 | |||
| CN107008509A | 2017-08-04 | |||
| CN106925342A | 2017-07-07 | |||
| CN103100437A | 2013-05-15 | |||
| US5030780A | 1991-07-09 |
Attorney, Agent or Firm:
WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD. (CN)
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