Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Sulfur or compound containing same
Patent
1996-01-16
1998-11-17
Caldarola, Glenn
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Sulfur or compound containing same
502220, 502222, 502305, 502308, 502311, 502313, 502322, 502325, 502327, 502513, 502514, B01J 27047, B01J 2300, B01J 2314
Patent
active
058376410
ABSTRACT:
A method of continuously promoting the activity of solid strong acid catalysts used in acid catalyzed reactions by adding or generating water in the reaction mixture has been developed. The solid strong acid catalyst may be a sulfated metal oxide, a tungstated metal oxide, or a molybdated metal oxide. The metal oxides are oxides, hydroxides, oxyhydroxides, or oxide-hydrates of Group IV-A, Group III-A, Group III-B, and Group V-A metals. The catalyst may also contain a Group VIII metal, or when the metal oxide is a hydroxide, oxide, oxyhydroxide, or oxide-hydrate of the Group IV-A, Group III-A, or Group III-B metals, the catalyst may also contain an oxide, hydroxide, oxyhydroxide or oxide-hydrate of a Group V-A, Group V-B, Group VI-B, or Group VII-B metal as a promoter. The acid catalyzed reactions where the activity promotion method may be applied include catalytic cracking, catalytic reforming, hydrodesulfurization, isomerization, alkylation of aliphatic and aromatic hydrocarbons, polymerization, and oligomerization. The amount of water added to or generated in the reaction mixture may be from about 0.1 ppm to about 500 ppm water.
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Blommel Paul G.
Cohn Michelle J.
Gillespie Ralph D.
Gosling Christopher D.
Holmgren Jennifer S.
Caldarola Glenn
Hailey Patricia L.
Maas Maryann
McBride Thomas K.
Snyder Eugene I.
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