Patent ID: 7217852

Claim:
A synthetic middle distillate cut comprising more than 50 mass % paraffins lighter than C 16 and in which more than 50 mass % of the total paraffins of the middle distillate cut are isoparaffins, and wherein the isoparaffins being predominantly methyl and/or ethyl and/or propyl branched wherein a C 10 to C 18 fraction of the synthetic middle distillate cut has a mass ratio range of isoparaffins to n-paraffins of between 1:1 and 9:1; a C 8 to C 9 fraction of the synthetic middle distillate cut has a mass ratio range of isoparaffins to n-paraffins lower than that of the C 10 to C 18 fraction; and a C 19 to C 24 fraction of the synthetic middle distillate cut has a mass ratio range of isoparaffins to n-paraffins of from 3.3:1 and 5:1.