Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – Hydrocarbon is aromatic
Patent
1997-05-16
1998-11-24
Yildirim, Bekir L.
Chemistry of hydrocarbon compounds
Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...
Hydrocarbon is aromatic
585266, 502167, 502165, 502200, C07C 510, B01J 3100
Patent
active
058410139
ABSTRACT:
The present invention is directed toward a hydrogenation process using a highly active aromatics hydrogenation catalyst. The catalyst is prepared by decomposing a catalyst precursor selected from the group consisting of metal amine molybdates, metal amine tungstates and mixtures thereof, wherein said metal amine catalyst precursor has the general formula ML (Mo.sub.y W.sub.1-y O.sub.4).sub.a where M is Cr and/or one or more divalent promoter metals selected from the group consisting of Mn, Fe, Co, Ni, Cu and Zn; L is one or more neutral nitrogen-containing ligands at least one of which is a chelating polydentate ligand; 0.ltoreq.y.ltoreq.1; and a=1 for non-chromium containing catalysts and wherein 0.5.ltoreq.a.ltoreq.3 for chromium containing catalysts, at a temperature of about 200.degree. C. to about 400.degree. C. in an inert atmosphere; then reducing at a temperature of about 300.degree. C. to about 450.degree. C. said metal amine catalyst precursor to form a mixed metal oxide catalyst of the formula ML(Mo.sub.y W.sub.1-y O.sub.b).sub.a where M, L and y are as above and b<4. The catalyst as prepared above is used in an aromatics hydrogenation processes.
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Buchholz Viktor
Daage Michel
Ho Teh Chung
Symon Charles Ralph
Exxon Research and Engineering Company
Scuorzo Linda M.
Yildirim Bekir L.
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