Title:
CATALYST AND PROCESS FOR AROMATIC HYDROCARBONS PRODUCTION FROM METHANE
Document Type and Number:
WIPO Patent Application WO2002010099
Kind Code:
A3
Abstract:
A molybdenum-loaded crystalline aluminosilicate molecular sieve that exhibits the MFI crystal structure and has a silica-to-alumina ratio of about 50:1 is useful for aromatizing a hydrocarbon feed stream. The crystalline aluminosilicate preferably has an external surface acidity selectively passivated by means of an amorphous silica layer. A process for the aromatization of methane comprises a one- or multi-step process that contacts a feed stream comprising at least methane with a catalyst composition comprising the preferred molecular sieve, at hydrocarbon conversion conditions that include a temperature of 600-800 DEG C, a pressure of less than 5 atmospheres absolute and a Weight Hourly Space Velocity (WHSV) of 0.1-10 h<->1, with the external surface acidity of the crystalline aluminosilicate preferably selectively passivated by an amorphous silica layer. C6-plus aromatic hydrocarbons are preferably recovered from the process by means of an intermediate separation step.
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Inventors:
ALLISON JOE D
BASSO STEPHAN
LEDOUX MARC
CUONG PHAM-HUU
WRIGHT HAROLD
BASSO STEPHAN
LEDOUX MARC
CUONG PHAM-HUU
WRIGHT HAROLD
Application Number:
PCT/US2001/023769
Publication Date:
January 09, 2003
Filing Date:
July 27, 2001
Export Citation:
Assignee:
CONOCO INC (US)
International Classes:
B01J29/48; B01J37/02; B01J37/18; C07B61/00; C07C2/00; C07C2/08; C07C2/52; C07C2/76; C07C15/00; C07C15/04; C07C15/06; C07C15/08; C07C15/24; B01J31/02; (IPC1-7): C07C2/76; B01J29/48
Foreign References:
US5026937A | 1991-06-25 | |||
US4727206A | 1988-02-23 |
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