Shell Oil Comapny

Arold Marcel Albert Routier

Cornelis Jacobus Smit

Joachim Ansorge

Hendrik Jan Van Der Ploeg

Scott Bilton

A method of increasing the hydrogen/carbon monoxide (H/CO) ratio in a syngas stream derived from a carbonaceous fuel including coal, brown coal, peat, and heavy residual oil fractions, preferably coal. The fuel-derived syngas stream is divided into at least two sub-streams, one of which undergoes a catalytic water shift conversion reaction. The so-obtained converted sub-stream is combined with the non-converted sub-stream(s) to form a second syngas stream with an increased H/CO ratio. The method of the present invention can provide a syngas with a H/CO ratio more suitable for efficient hydrocarbon synthesis carried out on a given catalyst, such as in one or more Fischer-Tropsch reactors, as well as being able to accommodate variation in the H/CO ratio of syngas formed from different qualities of feedstock fuels.

Process for the synthesis of hydrocarbons from a carbonaceous fuel

The present invention discloses a process for the preparation of syngas from two sources with different hydrogen: carbon ratios, the first source having a low hydrogen:carbon ratio including any one or a combination of coal, brown coal, peat, bitumen and tar sands, and the second source having a high hydrogen:carbon ratio including any one or a combination of natural gas, associated gas and coal bed methane. The sources are converted to syngas and then combined to provide syngas with an optimum hydrogen:carbon monoxide ratio for use in a Fischer-Tropsch process.

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Amsterdam, Netherlands

Arold Marcel Albert Routier