Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Sulfur or compound containing same
Patent
1984-01-13
1985-09-17
Gantz, D. E.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Sulfur or compound containing same
502162, 502164, 502200, 502222, 423 56, B01J 2702, B01J 3102, B01J 2724, C01G 3700
Patent
active
045421218
ABSTRACT:
A process for the preparation of novel highly active, highly selective hydrotreating catalysts. These catalysts are prepared, in bulk or in supported form, from a catalyst precursor characterized by the formula B.sub.x [Mo.sub.3 S.sub.z ] where B is an ammonium ion, polyammonium ion, tertiary or quaternary phosphonium ion, or a hydrocarbyl substituted ammonium ion, hydrocarbyl substituted polyammonium ion, or hydrocarbyl substituted tertiary or quaternary phosphonium ion, x is 1 where B is a divalent cationic moiety, or 2 where B is a monovalent cationic moiety, [Mo.sub.3 S.sub.z ] is a divalent anionic moiety wherein z is an integer greater than 15. The catalyst precursor is dispersed in an ammonium sulfide or dilute ammonium polysulfide solution and heated to remove sulfur from said catalyst precursor to provide a z value of 15 or less. Carbon is also removed from the catalyst precursor and, where B of the B.sub.x [Mo.sub.3 S.sub.z ] catalyst precursor is a non-carbon containing moiety, the finished catalyst will contain an atomic ratio of C/Mo of less than about 0.05. Decomposition of the catalyst precursor in the presence of hydrogen, hydrocarbon and sulfur forms the highly active hydrotreating catalyst.
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Mitchell, III Howard L.
Sawyer Willard H.
Exxon Research and Engineering Co.
Gantz D. E.
Proctor Llewellyn A.
Wright William G.
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