Abstract: A process for thermally cracking a fuel, said process comprising the steps of—on a solid carrier in a first reaction cracking fuel thereby producing Hydrogen and Carbon species—in a second reaction combusting said Carbon on the solid carrier wherein the first and second reaction is carried out in at least one fluidized bed.

Abstract: In the present application is described a plant and process for production of hydrocarbons, the process comprising the steps of: —converting at least a feed stream comprising CH4 and O2 feed into a conversion effluent by oxidative coupling of methane (OCM), —withdrawing one or more product streams from the conversion effluent by at least one product retrieval stage; —recycling at least a portion of the remaining conversion effluent as a recycle stream in a recycle loop, said recycle loop comprising a hydrogenation stage and a methanation stage; and —adding at least part of the recycle stream to the feed stream.

Abstract: The invention relates to a cyclic process for producing synthesis gas comprising: a first step of oxidation of an oxidizable oxygen-carrying solid; a second purge step; a third combustion step with production of CO2; a fourth step of production of synthesis gas; a fifth purge step.

Abstract: The invention relates to a cyclic process for producing synthesis gas comprising: a first step of oxidation of an oxidizable oxygen-carrying solid; a second purge step; a third combustion step with production of CO2; a fourth step of production of synthesis gas; a fifth purge step.

Abstract: A process for recovering tungsten from a spent catalyst comprising a supported heteropolytungstic acid characterised in that the process comprises: (a) contacting the spent catalyst with an extractant selected from water, methanol, ethanol or a mixture of any two or more thereof for sufficient time to extract at least part of the heteropolytungstic acid therefrom; (b) separating the extractant containing heteropolytungstic acid from the treated spent catalyst; (c) contacting the extractant containing heteropolytungstic acid with a strong acid ion exchange resin to remove corrosion metals contained therein and (d) recovering the treated extractant containing heteropolytungstic acid for subsequent use.