Title:
CATALYST AND METHOD FOR THE DIRECT AROMATISATION OF METHANE
Document Type and Number:
WIPO Patent Application WO/2014/173813
Kind Code:
A3
Abstract:
The present invention relates to a new type of catalyst for direct aromatisation of methane to form benzene, which is obtained by treatment with a gas flow containing water vapour, wherein a calcined catalyst comprising a zeolite support with at least one catalytically active species, comprising a molybdenum compound, a) is exposed at a temperature of ≥ 100°C over a period of ≥ 0.5 h to a gas flow comprising water, particularly water vapour, wherein the volume of water, preferably water vapour, used relative to the mass of the catalyst is intended to be ≥ 0.01 g/h/g_catalyst to ≤ 1 g/h/g_catalyst, and b) is exposed to a gas flow comprising ≥ 0.01 % v/v and < 1 % v/v CO2, relative to the total volume of the gas flow in the catalytically controlled methane aromatisation reaction.
Inventors:
ASSMANN JENS (DE)
BELLINGHAUSEN RAINER (DE)
MLECZKO LESLAW (DE)
BELLINGHAUSEN RAINER (DE)
MLECZKO LESLAW (DE)
Application Number:
PCT/EP2014/057908
Publication Date:
July 18, 2019
Filing Date:
April 17, 2014
Export Citation:
Assignee:
BAYER TECHNOLOGY SERVICES GMBH (DE)
International Classes:
B01J29/48; B01J29/076; B01J35/02; C07C2/76; C10G50/00; B01J37/10
Foreign References:
| US20110054232A1 | 2011-03-03 |
Other References:
YONGGANG LI ET AL: "Combined single-pass conversion of methane via oxidative coupling and dehydro-aromatization", CATALYSIS LETTERS, SPRINGER NEW YORK LLC, UNITED STATES, vol. 105, no. 1-2, 1 November 2005 (2005-11-01), pages 77 - 82, XP002541956, ISSN: 1011-372X, DOI: 10.1007/S10562-005-8008-Y
HONGTAO MA ET AL: "Effective Coke Removal in Methane to Benzene (MTB) Reaction on Mo/HZSM-5 Catalyst by H2 and H2O Co-addition to Methane", CATALYSIS LETTERS, KLUWER ACADEMIC PUBLISHERS-PLENUM PUBLISHERS, NE, vol. 104, no. 1-2, 1 October 2005 (2005-10-01), pages 63 - 66, XP019275272, ISSN: 1572-879X
TINGTING ZHAO ET AL: "Methane dehydro-aromatization over Mo/HZSM-5 catalysts in the absence of oxygen: Effect of steam-treatment on catalyst stability", JOURNAL OF NATURAL GAS CHEMISTRY, vol. 20, no. 5, 1 September 2011 (2011-09-01), pages 547 - 552, XP055129755, ISSN: 1003-9953, DOI: 10.1016/S1003-9953(10)60231-9
WANG H ET AL: "Post-steam-treatment of Mo/HZSM-5 Catalysts: An Alternative and Effective Approach for Enhancing Their Catalytic Performances of Methane Dehydroaromatization", JOURNAL OF PHYSICAL CHEMISTRY. B (ONLINE), AMERICAN CHEMICAL SOCIETY, COLUMBUS, OH, US, vol. 107, no. 47, 27 November 2003 (2003-11-27), pages 12964 - 12972, XP002549677, ISSN: 1520-5207, [retrieved on 20031101], DOI: 10.1021/JP0225931
HONGTAO MA ET AL: "Effective Coke Removal in Methane to Benzene (MTB) Reaction on Mo/HZSM-5 Catalyst by H2 and H2O Co-addition to Methane", CATALYSIS LETTERS, KLUWER ACADEMIC PUBLISHERS-PLENUM PUBLISHERS, NE, vol. 104, no. 1-2, 1 October 2005 (2005-10-01), pages 63 - 66, XP019275272, ISSN: 1572-879X
TINGTING ZHAO ET AL: "Methane dehydro-aromatization over Mo/HZSM-5 catalysts in the absence of oxygen: Effect of steam-treatment on catalyst stability", JOURNAL OF NATURAL GAS CHEMISTRY, vol. 20, no. 5, 1 September 2011 (2011-09-01), pages 547 - 552, XP055129755, ISSN: 1003-9953, DOI: 10.1016/S1003-9953(10)60231-9
WANG H ET AL: "Post-steam-treatment of Mo/HZSM-5 Catalysts: An Alternative and Effective Approach for Enhancing Their Catalytic Performances of Methane Dehydroaromatization", JOURNAL OF PHYSICAL CHEMISTRY. B (ONLINE), AMERICAN CHEMICAL SOCIETY, COLUMBUS, OH, US, vol. 107, no. 47, 27 November 2003 (2003-11-27), pages 12964 - 12972, XP002549677, ISSN: 1520-5207, [retrieved on 20031101], DOI: 10.1021/JP0225931
Attorney, Agent or Firm:
BIP PATENTS (DE)
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