Patent ID: 6395944
Filing Date: 2002-05-28
Classification: C07C,C10G,Y02P

Abstract:
A process for the production of a mono-olefin and a hydrocarbon fraction boiling in the diesel range which process comprises the steps of:(I) feeding a gaseous paraffinic hydrocarbon-containing feedstock and a molecular oxygen-containing gas to an autothermal cracker wherein they are reacted in the presence or absence of a catalyst capable of supporting combustion beyond the normal fuel rich limit of flammability under conditions whereby the feedstock is oxidatively dehydrogenated to a product comprising one or more mono-olefin(s) and synthesis gas, (II) separating the product from step (I) into synthesis gas and one or more mono-olefin(s) and recovering the one or more mono-olefin(s), (III) feeding synthesis gas separated in step (II), optionally together with additional synthesis gas, to a Fischer Tropsch (FT) reactor containing an FT catalyst wherein the synthesis gas is reacted under FT conditions to produce an FT product comprising naphtha and hydrocarbons boiling in the diesel range, (IV) separating the FT product from step (III) into a naphtha fraction and a diesel range hydrocarbon fraction and recovering the diesel range hydrocarbon fraction, and (V) recycling the naphtha fraction recovered in step (IV) as feed to the autothermal cracker of step (I).