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:
Aug. 18, 2020
Filed:
Nov. 03, 2017
Uop Llc, Des Plaines, IL (US);
Stephen R. Caskey, Lake Villa, IL (US);
Munish Kumar Sharma, New Delhi, IN;
Jayant K. Gorawara, Buffalo Grove, IL (US);
Pijus Kanti Roy, New Delhi, IN;
Frank S. Modica, Naperville, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A process is provided for removing contaminants from olefin containing Cstreams. The streams are contacted with an X based zeolite adsorbent comprising greater than 88% X zeolite at a SiO/AlOratio of less than 2.5 and an alkali metal salt present in excess of an amount required to achieve full exchange of cation sites on the X based zeolite. The resulting alkali oxide on a volatile free basis is less than 1% (by mass) of the X based adsorbent. The contaminants that are removed include sulfur, oxygenate, and nitrogen based contaminants.