Title:
HYDROCRACKING ISOMERIZATION CATALYST, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/258952
Kind Code:
A1
Abstract:
The present invention relates to an alumina-coated molecular sieve composite carrier, a hydrocracking isomerization catalyst, a preparation method therefor and the use thereof. Firstly, a molecular sieve is subjected to a pore-enlarging treatment with an amino acid; then the molecular sieve is sulfonated; the sulfonated molecular sieve is then added into an alcohol-water solution containing cetyltrimethylammonium bromide; then an aluminum source and urea are added; and crystallization, washing, drying and roasting are then performed to obtain the composite carrier. The composite carrier has abundant pore channels and a large number of acidic sites, such that the hydroisomerization performance is high. The catalyst uses Pt, Pd, Ni and Co as primary active metals, and Na, K, Be, Mg, Ca, Sr, Cr, Mn, Fe, Cu and Zn as auxiliary metals, wherein the auxiliary metal can not only improve the dispersity of the active metal, but can also selectively cover and inhibit the acidic sites of the molecular sieve, and play a key role in the hydrogenation activity. The catalyst has a better activity in the preparation of a biofuel from a long-chain alkane by means of hydroisomerization.
Inventors:
LI WEI (CN)
LIU SIYANG (CN)
GUAN QINGXIN (CN)
LIU SIYANG (CN)
GUAN QINGXIN (CN)
Application Number:
PCT/CN2021/095464
Publication Date:
December 30, 2021
Filing Date:
May 24, 2021
Export Citation:
Assignee:
UNIV NANKAI (CN)
International Classes:
B01J32/00; C10G45/60
Domestic Patent References:
| WO2018011652A1 | 2018-01-18 |
Foreign References:
| CN111701623A | 2020-09-25 | |||
| CN107138127A | 2017-09-08 | |||
| CN103331171A | 2013-10-02 | |||
| CN103320153A | 2013-09-25 | |||
| CN106166492A | 2016-11-30 | |||
| US5888921A | 1999-03-30 | |||
| CN103920528A | 2014-07-16 | |||
| CN108479695A | 2018-09-04 |
Attorney, Agent or Firm:
NUODE IP LAW FIRM (CN)
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