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:
Mar. 08, 2011
Filed:
Apr. 12, 2007
Scott A. Stevenson, Houston, TX (US);
Dustin B. Farmer, Houston, TX (US);
Scott F. Mitchell, The Woodlands, TX (US);
Gopalakrishnan G. Juttu, Sugar Land, TX (US);
Alla K. Khanmamedova, Sugar Land, TX (US);
Paul E. Ellis, Sugar Land, TX (US);
Scott A. Stevenson, Houston, TX (US);
Dustin B. Farmer, Houston, TX (US);
Scott F. Mitchell, The Woodlands, TX (US);
Gopalakrishnan G. Juttu, Sugar Land, TX (US);
Alla K. Khanmamedova, Sugar Land, TX (US);
Paul E. Ellis, Sugar Land, TX (US);
Saudi Basic Industries Corporation, Riyadh, SA;
Abstract
This invention relates to a process for the aromatization of Cto Calkanes, such as hexane, heptane and octane, to aromatics, such as benzene, ethyl benzene, toluene and xylenes, with a germanium-containing zeolite catalyst. The catalyst is a non-acidic aluminum-silicon-germanium zeolite on which a noble metal, such as platinum, has been deposited. The zeolite structure may be of MFI, BEA, MOR, LTL or MTT. The zeolite is made non-acidic by being base-exchanged with an alkali metal or alkaline earth metal, such as cesium, potassium, sodium, rubidium, barium, calcium, magnesium and mixtures thereof, to reduce acidity. The catalyst is sulfur tolerant and may be pretreated with a sulfur compound, i.e., sulfided. The hydrocarbon feed may contain sulfur up to 1000 ppm. The present invention could be applicable to a feedstream which is predominantly paraffinic and/or low in naphthenes. Lowering the hydrogen to hydrocarbon ratio increases conversion and aromatics selectivity.