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US 4,059,644 AGranted
High density fuels
AssigneeShell Oil Company
InventorLawrence G. Cannell
Life of this patent
Estimating the term…
Abstract
A process for making high density fuels by heating a mixture of cyclopentadiene dimer and methylcyclopentadiene dimer at a temperature sufficient to promote substantial formation of the Diels-Alder trimer of the monomeric cyclopentadienes, followed by hydrogen saturation of the olefinically unsaturated trimerization product.
Claims7
A process for making high density fuel which comprises
- a. heating a mixture of cyclopentadiene dimer and methylcyclopentadiene dimer at a temperature of 150.degree.-250.degree. C for from 10 minutes to 3 hours provided that any oxygen present will not exceed 0.1%wt of the mixture, then
- b. hydrogenating the product of step (a) by reaction with sufficient hydrogen to completely saturate the olfinically unsaturated bonds of said product and in the presence of a hydrogenation catalyst at a temperature of from 25.degree.-160.degree. C and a hydrogen pressure of from 150-800 psig.
A process for making high density fuel which comprises
- a. heating a mixture of cyclopentadiene dimer and methyl cyclopentadiene dimer at a temperature of 150.degree.-250.degree. C for from 10 minutes to 3 hours provided that any oxygen present will not exceed 0.1%wt of the mixture, to form a co-trimer from said dimers, then
- b. separating said co-trimer from the unreacted dimers and higher order oligomers in the bulk reaction product,
- c. adding sufficient hydrogen to completely saturate the olefinically unsaturated bonds of the separated co-trimer in the presence of a hydrogenation catalyst at a temperature of from 25.degree.-160.degree. C and a hydrogen pressure of from 150-800 psig.
A hydrogenated reaction product of the process which comprises
- a. heating a mixture of cyclopentadiene dimer and methylcyclopentadiene dimer at a temperature of 150.degree.-250.degree. C for from 10 minutes to 3 hours provided that any oxygen present will not exceed 0.1%w of the mixture, then
- b. hydrogenating the product of step (a) by reaction with sufficient hydrogen to completely saturate the olefinically unsaturated bonds of said product and in the presence of a hydrogenation catalyst at a temperature of from 25.degree.-160.degree. C and a hydrogen pressure of from 150-800 psig, which hydrogenated reaction product has a liquid density of about 1.029 gm/ml and melting point of about -30.degree. C.
Dependencies are inferred from the claim text.