Patent GB-434624-A (GB)
Title: Improvements in the production of hydrocarbon products by treatment of distillable carbonaceous materials with hydrogenating gases
IPC: B01J19/02
Filed: 1934-06-19
Abstract: In the production of hydrocarbons by the treatment of carbonaceous materials with hydrogenating gases the parts of the apparatus coming into contact with the hot reagents are coated with zinc by exposing them to an atmosphere containing zinc vapour with exclusion of oxygen and at a temperature exceeding 600 DEG  C. while passing an inert or reducing gas slowly through the treatment vessel.  Hydrogen-proof materials are used, e.g. steels, alloys containing chromium, aluminium, nickel, manganese, tungsten, vanadium, cobalt or molybdenum.  The treatment may be carried out in closed vessels containing zinc which is vaporized after the vessel is closed.  The air may be removed by oxidation of a part of the zinc vapour, by burning magnesium or by displacement with nitrogen or reducing gases. The term " treatment with hydrogenating gases " includes destructive hydrogenation, purifying hydrocarbons and removing sulphur and oxygen containing impurities therefrom, the conversion of oxygen and sulphur containing compounds into the corresponding hydrocarbons or hydrogenated hydrocarbons and the hydrogenation of unsaturated and aromatic hydrocarbons to produce hydroaromatic hydrocarbons. Reference is made to the " Industrial Chemist, " March, 1934, p. 113.ALSO:In the production of hydrocarbons by the treatment of carbonaceous materials with hydrogenating gases the parts of the apparatus coming into contact with the hot reagents are coated with zinc by exposing them to an atmosphere containing zinc vapour with exclusion of oxygen and at a temperature exceeding 600 DEG  C. while passing an inert or reducing gas through the treatment vessel. Hydrogen-proof materials are used, e.g. steels, alloys containing chromium, aluminium, nickel, manganese, tungsten, vanadium, cobalt or molybdenum.  The treatment may be carried out in closed vessels containing zinc which is vaporized after the vessel is closed.  The air may be removed by oxidation of a part of the zinc vapour, by burning magnesium or by displacement with nitrogen or reducing gases. The term "treatment with hydrogenating gases" includes destructive hydrogenation, purifying hydrocarbons and removing sulphur and oxygen containing impurities therefrom, the conversion of oxygen and sulphur containing hydrocarbons into the corresponding hydrocarbons or hydrogenated hydrocarbons and the hydrogenation of unsaturated and aromatic hydrocarbons to produce hydroaromatic hydrocarbons. Reference is made to the "Industrial Chemist," March 1934, page 113.ALSO:In the production of hydrocarbons by the treatment of carbonaceous materials with hydrogenating gases the parts of the apparatus coming into contact with the hot reagents are coated with zinc by exposing them to an atmosphere containing zinc vapour with exclusion of oxygen and at a temperature exceeding 600 DEG  C., while passing an inert or reducing gas through the treatment vessel. Hydrogen-proof materials are used, e.g. steels, alloys containing chromium, aluminium, nickel, manganese, tungsten, vanadium, cobalt or molybdenum.  The treatment may be carried out in closed vessels containing zinc which is vaporized after the vessel is closed.  The air may be removed by oxidation of a part of the zinc vapour, by burning magnesium or by displacement with nitrogen or reducing gases. Reference is made to the "Industrial Chemist," March, 1934, page 113.