Shell Oil Comapny

Jacobus Hendrikus Scheerman

Johannes Everdinus Gerrit Ploeg

Robert Van Den Berg

Johan G Bitter

Johannes Gerardus Maria Schilder

Rudolf J Maas

Johannes Margaretha Anna Joan Van Montfort

Process for preparing a hydrocarbon product from a solid carbonaceous fuel (), the process at least comprising the steps of: (a) supplying a solid carbonaceous fuel () and an oxygen containing stream () to a burner of a gasification reactor (), wherein a COcontaining transport gas () is used to transport the solid carbonaceous fuel () to the burner wherein the weight ratio of COto the carbonaceous fuel in step (a) is less than 0.5 on dry basis.; (b) partially oxidising the carbonaceous fuel in the gasification reactor, thereby obtaining a gaseous stream at least comprising CO, CO, and H(); (c) removing the gaseous stream obtained in step (b) from the gasification reactor; (d) optionally shift converting () at least part of the gaseous stream as obtained in step (c) thereby obtaining a CO depleted stream, (e) subjecting the gaseous stream of step (c) and/or the optional CO depleted stream of step (d) to a Fischer-Tropsch reaction to obtain a hydrocarbon product ().

Improvements relating to coal to liquid processes

Method and system for producing synthesis gas by partial oxidation of a carbonaceous stream, wherein the partial oxidation is controlled using an oxygen to carbon ratio (O/C ratio). A carbonaceous stream and an oxygen containing stream is fed into a gasification reactor at a selected O/C ratio, where it is at least partially oxidized. A gaseous product stream is thereby obtained, which at least contains synthesis gas, COand possibly CH. The content of COin the product stream is determined, and compared with a pre-determined content thereby possibly obtaining a difference value between the determined content and the pre-determined content. The O/C ratio in step is adjusted based on the difference value.

Method and system for producing synthesis gas

The invention is directed to a process for preparing a mixture comprising CO and Hby operating a partial oxidation process of a solid carbonaceous feed, which process comprises the steps of:

Process for operating a partial oxidation process of a solid carbonaceous feed

An improved process is described for the preparation of 2,3,5-trimethylhydroquinone by catalytically oxidizing a trimethylphenol selected from the class consisting of 2,3,5-trimethylphenol, 2,3,6-trimethylphenol and mixtures thereof with oxygen in the presence of a cobalt chelate catalyst complex in a dimethylformamide solvent to form 2,3,5-trimethyl-p-benzoquinone which is subsequently hydrogenated to 2,3,5-trimethylhydroquinone by reaction with hydrogen in the presence of a noble metal catalyst. In this improved process, the 2,3,5-trimethyl-p-benzoquinone-containing reaction mixture from catalytic oxidation is contacted with di-n-butyl ether and water to form a di-n-butyl ether phase containing the 2,3,5-trimethyl-p-benzoquinone, a precipitate comprising the cobalt catalyst and an aqueous phase containing the dimethylformamide solvent, said di-n-butyl ether phase being subsequently separated from the precipitate and aqueous phase and passed to the catalytic hydrogenation reaction where the di-n-butyl ether functions as the reaction solvent.

Growing community of inventors

Amsterdam, Netherlands

Jacobus Hendrikus Scheerman