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:
Nov. 04, 2014
Filed:
Nov. 08, 2013
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Technip Process Technology, Inc., Houston, TX (US);
Matthew J. Vincent, Kingwood, TX (US);
Vijay Nanda, Houston, TX (US);
Maruti Bhandarkar, Kingwood, TX (US);
Brian Maerz, Chelmsford, MA (US);
Terry E. Helton, Bethlehem, PA (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Technip Process Technology, Inc., Houston, TX (US);
Abstract
Disclosed is a process for the production of alkylated aromatics by contacting a feed stream comprising an alkylatable aromatic, an alkylating agent and trace amounts of water and impurities in the presence of a first catalyst and an alkylation catalyst wherein such water and impurities are removed in order to improve the cycle length of such alkylation catalysts. Water and at least a portion of impurities are removed in a dehydration zone. A reaction zone having a first catalyst which, in some embodiments is a large pore molecular sieve, acts to remove another portion of impurities, such as nitrogenous and other species. An alkylation zone having an alkylation catalyst which, in some embodiments is a medium pore molecular sieve or a MCM-22 family material, acts to remove additional impurities, and to alkylate the alkylatable aromatic compound.