Patent GB-406561-A (GB)
Title: Improvements in the treatment of carbonaceous materials with hydrogenating gases
IPC: C10G1/06
Filed: 1933-07-07
Abstract: <PICT:0406561/III/1> In processes for the hydrogenation of carbonaceous materials, in which part at least of the initial materials is preheated by the reaction products, such preheating is effected in a heat exchanger so that the difference in temperature between the material to be preheated and the stream of material giving up its heat does not exceed 100 DEG  C. 80 per cent of a middle oil to be subjected to destructive hydrogenation is mixed with hydrogen and heated to 200 DEG  C. and then to 450 DEG  C. in heat-exchangers A, B and is then mixed with the remaining 20 per cent which has been passed through a preheating coil G and the mixture is passed through a heating coil C to a reaction chamber D.  5 per cent of the liquid products of the reaction are continuously withdrawn from a separator E while the gases and vapours produced are passed through the heat exchangers A, B.  The temperature of the coil G may be regulated independently by the provision of a separate burner.  In a modification part of the initial materials are introduced cold into the reaction chamber.  Catalysts may be employed, e.g. oxides or sulphides of the metals of Groups 2 to 8 and may be precipitated on carriers, e.g. by impregnating or sprinkling the carriers with the catalyst solution.  The expression "treatment with hydrogenating gases" covers destructive hydrogenation, removal of sulphur and oxygen-containing impurites from hydrocarbons, e.g. refining benzol, conversion of oxygen or sulphur containing hydrocarbons into the corresponding hydrocarbons or hydrogenated hydrocarbons and the hydrogenation of unsaturated hydrocarbons to produce hydroaromatic hydrocarbons &c.  Specification 287,855, [Class 32], is referred to.ALSO:<PICT:0406561/IV/1> In the conversion of organic compounds containing oxygen or sulphur, such as phenol or cresol, into the corresponding hydrocarbons by processes in which part at least of the initial materials is preheated by the reaction products, such preheating is effected in a heat exchanger so that the difference in temperature between the material to be preheated and the stream of material giving up its heat does not exceed 100 DEG  C.  As shown, a portion of the material to be treated is mixed with hydrogen and heated to 200 DEG  C. and then to 450 DEG  C. in heat exchangers A, B and is then mixed with the remainder of the material which has been passed through a preheating coil G and the mixture is passed through a heating coil C to a reaction chamber D.  A part of the liquid products of the reaction are continuously withdrawn from a separator E while the gases and vapours produced are passed through the heat exchangers A, B.  The temperature of the coil G may be regulated independently by the provision of a separate burner.  In a modification, part of the initial material is introduced cold into the reaction chamber Catalysts may be employed, e.g. oxides or sulphides of the metals of Groups 2 to 8 and may be precipitated on carriers, e.g. by impregnating or sprinkling the carriers with the catalyst solution.  Specification 287,855, [Class 32], is referred to.