Patent ID: 7285693

Claim:
A process to prepare a catalytically dewaxed gas oil or gas oil blending component by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product; (b) separating the product of step (a) into at least one or more fuel fractions and a gas oil precursor fraction, which gas oil precursor fraction has a T10 wt % boiling point of between 200° C. and 450° C. and a T90 wt % boiling point of between 400° C. and 550° C.; (c) catalytically dewaxing the gas oil precursor fraction obtained in step (b); (d) isolating the catalytically dewaxed gas oil or gas oil blending component from the product of step (c) by means of distillation; (e) recycling a heavy fraction remaining from step (d) to step (a); and (f) feeding a fraction of the Fischer-Tropsch product comprising C 12 -C 24 primary alcohols to step (b) in such an amount that the resulting gas oil or gas oil blending component has an oxygen content of between 0.001 wt % and 3 wt % on a water-free basis.