Title:
LOW-CARBON ALKANE CHROMIUM DEHYDROGENATION CATALYST, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/008168
Kind Code:
A1
Abstract:
Disclosed are a low-carbon alkane chromium dehydrogenation catalyst, a preparation method therefor and an application thereof, belonging to the technical field of petrochemicals. The dehydrogenation catalyst has a spinel structure comprising the following components by mass fraction, using as a benchmark the total mass on a dry basis: 0.1-35% of chromium oxide, 0.1-5% of a first auxiliary agent, 0.1-10% of a second auxiliary agent, 0.1-5% of a third auxiliary agent, and the remainder being a fluidized bed carrier. The present dehydrogenation catalyst allows for controlling the existence state of the active center of the catalyst by adjusting the electrical properties of a carrier surface, making it so that the catalyst has higher dehydrogenation activity and propylene selectivity; and the invention further enhances the overall stability, strength and abrasion of the catalyst, and alleviates the problem of catalyst loss during the use process.
Inventors:
ZHANG CHUNXUE (CN)
ZHUO RUNSHENG (CN)
SUN QIUSHI (CN)
LIU BING (CN)
RAO YUSEN (CN)
LAN XINGYUE (CN)
ZHAO RUILING (CN)
LIU XINSHENG (CN)
ZHUO RUNSHENG (CN)
SUN QIUSHI (CN)
LIU BING (CN)
RAO YUSEN (CN)
LAN XINGYUE (CN)
ZHAO RUILING (CN)
LIU XINSHENG (CN)
Application Number:
PCT/CN2023/106184
Publication Date:
January 11, 2024
Filing Date:
July 06, 2023
Export Citation:
Assignee:
REZEL CATALYSTS SHANGHAI CO LTD (CN)
International Classes:
B01J23/26; C07C5/333; C07C11/06
Foreign References:
| CN112246236A | 2021-01-22 | |||
| CN115055178A | 2022-09-16 | |||
| CN102019178A | 2011-04-20 | |||
| CN103480359A | 2014-01-01 | |||
| CN111672500A | 2020-09-18 | |||
| CN113244907A | 2021-08-13 | |||
| CN113522266A | 2021-10-22 | |||
| RU2322290C1 | 2008-04-20 | |||
| US20040092391A1 | 2004-05-13 | |||
| US5378350A | 1995-01-03 |
Other References:
XIN-PEI XU, WANG DE-LONG; YAO YUE; SHAO HUAI-QI; JIANG TAO: "Research progress in Cr-based catalysts for dehydrogenation of propane to propylene ", NATURAL GAS CHEMICAL INDUSTRY, vol. 42, no. 5, 25 October 2017 (2017-10-25), pages 107 - 113, 125, XP093124636
KANG KI HYUK, KIM TAE HYEOP, CHOI WON CHOON, PARK YONG-KI, HONG UNG GI, PARK DEUK SOO, KIM CHUL-JIN, SONG IN KYU: "Dehydrogenation of propane to propylene over CrOy-CeO2-K2O/γ-Al2O3 catalysts: Effect of cerium content", CATALYSIS COMMUNICATIONS, ELSEVIER, AMSTERDAM, NL, vol. 72, 1 December 2015 (2015-12-01), AMSTERDAM, NL , pages 68 - 72, XP093124638, ISSN: 1566-7367, DOI: 10.1016/j.catcom.2015.09.009
KANG KI HYUK, KIM TAE HYEOP, CHOI WON CHOON, PARK YONG-KI, HONG UNG GI, PARK DEUK SOO, KIM CHUL-JIN, SONG IN KYU: "Dehydrogenation of propane to propylene over CrOy-CeO2-K2O/γ-Al2O3 catalysts: Effect of cerium content", CATALYSIS COMMUNICATIONS, ELSEVIER, AMSTERDAM, NL, vol. 72, 1 December 2015 (2015-12-01), AMSTERDAM, NL , pages 68 - 72, XP093124638, ISSN: 1566-7367, DOI: 10.1016/j.catcom.2015.09.009
Attorney, Agent or Firm:
CHENGDU DINGFENG PATENT AGENCY (GENERAL PARTNER) (CN)
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