Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – With subsequent diverse conversion
Patent
1977-09-28
1979-12-04
O'Keefe, Veronica
Chemistry of hydrocarbon compounds
Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...
With subsequent diverse conversion
60208, 1491094, 1491096, 585 14, 585 21, 585276, 585360, C07C 1300
Patent
active
041772172
ABSTRACT:
Dimethyldicyclopentadiene is continuously hydrogenated to tetrahydrodimethyldicyclopentadiene and then the latter is continuously isomerized to a missile fuel. Both the hydrogenation and the isomerization steps use a nickel on silica-alumina catalyst. The temperature of the hydrogenation is in the range of about 70.degree.-260.degree. C., and the temperature of the isomerization is in the range of about 200.degree.-280.degree. C. The space velocity of the hydrogenation is about 0.1 to about 2.0 volumes of the diene charged per volume of catalyst per hour and the space velocity of the isomerization is about 0.1 to about 3.0 volumes of the hydrocarbon charged per volume of catalyst per hour. The pressure range for hydrogenation is between about 200 psig to about 3000 psig and for isomerization between from about 10 psig to about 1500 psig. Hydrogen is present during the isomerization.
REFERENCES:
patent: 3381046 (1968-04-01), Cohen
Janoski Edward J.
Mitchell Richard E.
Schneider Abraham
Hess J. Edward
Johnson Donald R.
O'Keefe Veronica
Potts, Jr. Anthony
Suntech, Inc.
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