Title:
MOLYBDENUM-VANADIUM BIMETAL OXIDE CATALYST AND USE THEREOF IN CHEMICAL CHAIN DEHYDROGENATION OF LOWER ALKANE
Document Type and Number:
WIPO Patent Application WO/2019/029358
Kind Code:
A1
Abstract:
A molybdenum-vanadium bimetal oxide catalyst and use thereof in chemical chain dehydrogenation of lower alkanes. The molybdenum-vanadium bimetal oxide catalyst has a molecular formula of Mo1Vy, y representing the molar ratio of vanadium atom to molybdenum atom, and is prepared by means of a dipping method, the Mo1Vy oxygen carrier being obtained by means of dipping, drying, calcining and tabletting. The supported molybdenum-vanadium bimetal oxide is used for the dehydrogenation of lower alkanes to olefins at a reaction temperature of 450-550°C, and can achieve highly active, highly selective oxidative dehydrogenation of propane to propylene, the propane conversion rate being 30 -40%, propylene selectivity being 80-90%. The fresh oxygen carrier reacts with propane to change from a high valence state to a low valence state, and the oxygen carrier of a low valence state reacts with air or oxygen to be oxidized to a high valence state, and thus lattice oxygen is obtained and circulated again; moreover, the oxygen carrier has very stable reaction performance after repeated regeneration, being useful in reaction devices such as a fixed bed reactor, a moving bed reactor or a circulating fluidized bed.
Inventors:
GONG JINLONG (CN)
CHEN SAI (CN)
ZENG LIANG (CN)
MU RENTAO (CN)
CHEN SAI (CN)
ZENG LIANG (CN)
MU RENTAO (CN)
Application Number:
PCT/CN2018/096942
Publication Date:
February 14, 2019
Filing Date:
July 25, 2018
Export Citation:
Assignee:
UNIV TIANJIN (CN)
International Classes:
B01J23/22; B01J23/28; C07C5/333; C07C11/06
Other References:
YU XIAOCHUAN: "Study on the active sites of Supported Vanadium-Based Catalysts in Oxidative Dehydrogenation of Propane", CHINA MASTER'S THESES FULL-TEXT DATABASE, 31 October 2009 (2009-10-31)
VIVIANA MURGIA ET AL.: "Influence of concentration and order of aggregation of the active phases in V - Mo - 0 catalysts in the oxidative dehydrogenation of propane", CATALYSIS TODAY, vol. 133-135, 5 March 2008 (2008-03-05), pages 87 - 91, XP022573964, ISSN: 0920-5861, DOI: 10.1016/j.cattod.2007.12.038
MIGUEL A. BAN~ARES ET AL.: "Structure - activity relationships in alumina-supported Structure - activity relationships in alumina-supported oxidative de hydrogenation", CATALYSIS TODAY, vol. 96, no. 4, 24 August 2004 (2004-08-24), pages 251 - 257, XP004578291, ISSN: 0920-5861, DOI: 10.1016/j.cattod.2004.06.152
VIVIANA MURGIA ET AL.: "Influence of concentration and order of aggregation of the active phases in V - Mo - 0 catalysts in the oxidative dehydrogenation of propane", CATALYSIS TODAY, vol. 133-135, 5 March 2008 (2008-03-05), pages 87 - 91, XP022573964, ISSN: 0920-5861, DOI: 10.1016/j.cattod.2007.12.038
MIGUEL A. BAN~ARES ET AL.: "Structure - activity relationships in alumina-supported Structure - activity relationships in alumina-supported oxidative de hydrogenation", CATALYSIS TODAY, vol. 96, no. 4, 24 August 2004 (2004-08-24), pages 251 - 257, XP004578291, ISSN: 0920-5861, DOI: 10.1016/j.cattod.2004.06.152
Attorney, Agent or Firm:
TIANJIN CZTC IP FIRM (CN)
Download PDF: