Process for producing jet fuel from a hydrocarbon synthesis product stream

The present invention relates to a process for producing jet fuel comprising the following steps: A.1) separating at least a portion of the C 9 to C 15 fraction from the product of a hydrocarbon synthesis process; A.2) converting at least a part of the separated C 9 to C 15 fraction to aromatic hydrocarbons; A.3) obtaining a jet fuel comprising the, optionally further treated, converted separated C 9 to C 15 fraction of step A.2); B.1) separating at least a portion of the C 16+ fraction from the product of a hydrocarbon synthesis process; B.2) reducing the average number of carbon atoms of at least a portion of the separated C 16+ fraction; B.3) optionally, separating the C 9 to C 15 fraction of at least a portion from the product obtained from step B.2); and B.4) adding - at least a portion of the C 9 to C 15 fraction separated in step B.3), if present; or - at least a portion of the product of step B.2) to - the separated C 9 to C15 fraction obtained from step A.1); and/or - the product of one or more of the steps subsequent of step A.1) before step A.3) is effected; and/or - the steps subsequent of step A.1) before step A.3) is effected and/or - step A.3). The present invention furthermore relates to a product obtainable by the process of the invention. The present invention furthermore relates to the use of at least a portion of the C 9 to C 15 fraction from the product of a hydrocarbon synthesis process wherein at least a part of the fraction has been converted to aromatic hydrocarbons together with at least a portion of the C16+ fraction from the product of a hydrocarbon synthesis process wherein of at least a portion of the C 16+ fraction the average number of carbon atoms has been reduced as jet fuel.