Paraffin alkylation catalyst
AssigneeInstitut Francais du Petrole
InventorsJean-Francois Joly, Nathalie Ferrer, Jean-Yves Bernhard, Eric Benazzi
Life of this patent
Estimating the term…
Abstract
Catalyst comprising a porous mineral or organic support and a mixture constituted by sulphuric acid, trifluoromethanesulphonic acid and, optionally, water. The invention also relates to a method for the preparation of the catalyst and its use in catalytic alkylation of isobutane and/or isopentane in the presence of at least one olefin comprising 3 to 6 carbon atoms per molecule.
Claims14
Catalyst comprising a macroporous silica support and an acidic mixture consisting essentially of sulphuric acid, trifluoromethanesulphonic acid and optionally, water, the support being impregnated by said mixture and, before impregnation, having a specific surface area of between 0.01 and 1500 m.sup.2 /g, a total pore volume of between 0.005 and 3 cm.sup.3 /g and being principally constituted by substantially spherical particles having an average diameter of between 5 to 150 .mu.m, said mixture having a composition by weight between the following limits:
- sulphuric acid:
- between 80 and 99.5%,
- trifluoromethanesulphonic acid:
- between 0.5 and 15%,
- water:
- between 0 and 5%.
Dependencies are inferred from the claim text.