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:
Feb. 05, 2019
Filed:
Dec. 10, 2015
Exxonmobil Chemical Patents Inc.;
Nikolaos Soultanidis, Houston, TX (US);
Mayank Shekhar, Houston, TX (US);
John S. Coleman, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
The present invention relates to a multistage process and catalyst system therefor to convert syngas to aromatics. In a first stage, syngas is converted to a C-Calcohol mixture by contacting syngas with a first catalyst comprising rhodium or copper at moderate temperature. In a second stage, the C-Calcohol mixture is converted into an aromatic product by contact with a second catalyst comprising a molecular sieve and at least one Group 8-14 element, the molecular sieve having a Constraint Index about 1 to 12 and a silica to alumina ratio of about 10 to 100 at effective conversion conditions. The final aromatic product is rich in benzene, toluene, and xylenes (e.g. greater than 50% aromatics on a hydrocarbon basis).