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Enhancement of alkylation catalysts for improved supercritical fluid regeneration

United States Patent

December 28, 2010
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A method of modifying an alkylation catalyst to reduce the formation of condensed hydrocarbon species thereon. The method comprises providing an alkylation catalyst comprising a plurality of active sites. The plurality of active sites on the alkylation catalyst may include a plurality of weakly acidic active sites, intermediate acidity active sites, and strongly acidic active sites. A base is adsorbed to a portion of the plurality of active sites, such as the strongly acidic active sites, selectively poisoning the strongly acidic active sites. A method of modifying the alkylation catalyst by providing an alkylation catalyst comprising a pore size distribution that sterically constrains formation of the condensed hydrocarbon species on the alkylation catalyst or by synthesizing the alkylation catalyst to comprise a decreased number of strongly acidic active sites is also disclosed, as is a method of improving a regeneration efficiency of the alkylation catalyst.
Ginosar; Daniel M. (Idaho Falls, ID), Petkovic; Lucia M. (Idaho Falls, ID)
Battelle Energy Alliance, LLC (Idaho Falls, ID)
12/ 498,937
July 7, 2009
GOVERNMENT RIGHTS This invention was made with government support under Contract No. DE-AC07-99ID13727 awarded by the United States Department of Energy. The government has certain rights in the invention.