High density fuels

Claim 2

A process for making high density fuel which comprises a. heating a mixture of cyclopentadiene dimer and methylcyclopentadiene dimer at a temperature of 150°-250° 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°-160° C and a hydrogen pressure of from 150-800 psig.

Claim 3

The process of claim 1 wherein the heating temperature employed in step (a) is between 190° C and 230° C and the heating time is from 15 minutes to 1 hour.

Claim 4

The process of claim 1 wherein the mixture contains cyclopentadiene dimer and methylcyclopentadiene dimer in a molar ratio of from 3:1 to 1:3.

Claim 5

The process of claim 1 wherein the hydrogenation is conducted at a temperature of from 80°-120° C at a hydrogen pressure of from 200 to 500 psig, in the presence of a Group VIII metal catalyst.

Claim 6

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°-250° 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°-160° C and a hydrogen pressure of from 150-800 psig.

Claim 7

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°-250° 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°-160° C and a hydrogen pressure of from 150-800 psig.

Claim 8

The process of claim 5 wherein said co-trimer is separated by a separation method selected from the class consisting of fractional distillation, vacuum distillation, fractional crystallization or solvent extraction.

Claim 9

A hydrogenated reaction product of the process which comprises a. heating a mixture of cyclopentadiene dimer and methylcyclopentadiene dimer at a temperature of 150°-250° 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°-160° 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° C.

Claim 10

A hydrogenated reaction product of the process which comprises a. heating a mixture of cyclopentadiene dimer and methylcyclopentadiene dimer at a temperature of 150°-250° 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°-160° 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° C.