The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2003
Filed:
Jul. 27, 2001
Joe D. Allison, Ponca City, OK (US);
Stephan Basso, Strasbourg, FR;
Marc LeDoux, Strasbourg, FR;
Cuong Pham-Huu, Strasbourg, FR;
Harold A. Wright, Ponca City, OK (US);
Conoco Phillips Company, Houston, TX (US);
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° C., a pressure of less than 5 atmospheres absolute and a Weight Hourly Space Velocity (WHSV) of 0.1-10 h , with the external surface acidity of the crystalline aluminosilicate preferably selectively passivated by an amorphous silica layer. C -plus aromatic hydrocarbons are preferably recovered from the process by means of an intermediate separation step.