Patent ID: 8536233

Claim:
An integrated process for producing liquid fuel from primarily an overall feedstock that comprises one or more heavy feedstocks from at least one of biomass, coal, lignite, and petroleum residues that boil essentially above 340° C., said process comprising: A stage a) for cracking or pyrolysis of least one of said heavy feedstocks, A stage b) for partial oxidation of effluents from stage a) in the presence of oxygen, for the production of a first synthesis gas SG1, optionally purified, with an H2/CO ratio that is less than 1; A stage c) for steam reforming a light feedstock of hydrocarbons consisting of hydrocarbons that have less than 10 carbon atoms per molecule from a stream produced during stage (a) and effluents from a hydrocracking stage (e) and optionally from stage (d) of a Fischer-Tropsch conversion, for the production of a second synthesis gas SG2 with an H2/CO ratio of greater than 3; wherein said stage d) comprises said Fischer-Tropsch conversion into hydrocarbons of a synthesis gas SG that is formed by a mixture, generally purified before stage d), of at least a portion of SG1 and at least a portion of SG2, in proportions such that SG has an H2/CO ratio of between 1.2 and 2.5, and wherein said stage e) comprises said hydrocracking of at least a portion of the hydrocarbons produced in stage d), boiling above 150° C. to transform said hydrocarbons into said liquid fuel, whereby said process is conducted without the need of an external source of a light feedstock.