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:
Jun. 10, 2003
Filed:
Nov. 15, 1995
Applicant:
Inventors:
Jeffrey S. Beck, Lawrenceville, NJ (US);
Jane C. Cheng, Clarksburg, NJ (US);
Sharon B. McCullen, Newtown, PA (US);
David H. Olson, Pennington, NJ (US);
David L. Stern, Lawrenceville, NJ (US);
Assignee:
ExxonMobil Oil Corporation, Fairfax, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 2/906 ; B01J 2/940 ;
U.S. Cl.
CPC ...
B01J 2/906 ; B01J 2/940 ;
Abstract
There is provided a substantially binder-free catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation sequences, each sequence comprising an impregnation with a silicon compound followed by calcination. The catalyst may be used in a hydrocarbon conversion process, such as toluene disproportionation.