Abstract: A process for the preparation of a biogasoline component comprising: (I) obtaining at least one biooil and, if necessary, liquefying the biooil component; (II) adding the bio-oil in liquid form to a FCC unit along with at least one mineral oil; (III) cracking the components added to the FCC unit to form at least a bio-LPG fraction and a bio-naphtha fraction; (IV) alkylating or catalytically polymerising at least part of the bio-LPG fraction; and (V) combining at least a part of the product of step (IV) with at least a part of the bio-naphtha fraction to form a bio-gasoline component.