CATALYST AND PROCESS FOR AROMATIC HYDROCARBONS PRODUCTION FROM METHANE |
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| 申请号 | PCT/US0123769 | 申请日 | 2001-07-27 | 公开(公告)号 | WO0210099A3 | 公开(公告)日 | 2003-01-09 |
| 申请人 | CONOCO INC; | 发明人 | ALLISON JOE D; BASSO STEPHAN; LEDOUX MARC; CUONG PHAM-HUU; WRIGHT HAROLD; | ||||
| 摘要 | 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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