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    Selective hydrogenation of small amounts of acetylene in ethylene or gases rich in ethylene
    3.
    发明专利
    Selective hydrogenation of small amounts of acetylene in ethylene or gases rich in ethylene 未知

    公开(公告)号：GB1133253A

    公开(公告)日：1968-11-13

    申请号：GB1172066

    申请日：1966-03-17

    Applicant: BASF AG

    Inventor： LANGER JOHANN ,  RITTINGER WILHELM ,  SCHEINER KARL

    IPC: C07C5/09 ,  H04B3/26

    Abstract: 1,133,253. Purifying ethylene. BADISCHE ANILIN- & SODA-FABRIK A.G. 17 March, 1966 [18 March, 1965], No. 11720/66. Heading C5E. Ethylene, and gas mixtures comprising predominantly ethylene (e.g. ethylene/ethane mixture from a cracker), are selectively hydrogenated for removal of minor quantities of acetylene by hydrogenation in the presence of a catalyst containing 0À01-1 wt. per cent of palladium on a carrier of silica gel having an internal surface area of 250-400 sq. m./gm. The temperature may be 50-200‹ C., the pressure 1-30 atmospheres, and the hydrogen: acetylene volume ratio 1À5 : 1-2À0 : 1. The temperature may be progressively increased as the catalyst activity decreases.

    Production of hydrogen
    6.
    发明专利
    Production of hydrogen 未知

    公开(公告)号：GB1085717A

    公开(公告)日：1967-10-04

    申请号：GB4933564

    申请日：1964-12-04

    Applicant: BASF AG

    Inventor： KRABETZ RICHARD ,  LANGER JOHANN ,  KROME HELMUT

    IPC: B01J23/86 ,  C01B3/16 ,  H01L23/31

    Abstract: Hydrogen is produced by reaction of carbon monoxide or gases containing carbon monoxide with steam at below 250 DEG C. in contact with catalysts prepared by coprecipitation of a sparingly water-soluble or insoluble compounds of, copper and aluminium together with chromium compounds and/or manganese compounds or by precipitation of compounds of copper and chromium and/or manganese on to an oxide or hydroxide of aluminium and subsequent reduction at below 250 DEG C., and in which the weight ratio of copper to aluminium is from 1:1 to 20:1. The gas to be converted may be obtained from the cracking o gaseous or liquid hydrocarbons and the conversion may be at 160-200 DEG C. at atmospheric or super-atmospheric pressure, e.g. at 5-35 atmospheres. The catalysts may have weight ratio of copper to chromium and/or manganese from 100:0.5 to 100:24. When the insoluble compounds are precipitated on the aluminium compound an aqueous suspension of aluminium hydroxide gel which has been freshly precipitated with ammonia may be used. Coprecipitation may be carried out by adding a solution of say the nitrates, sulphates or chlorides of copper and aluminium together with chromium and/or manganese to a strongly diluted solution of alkali metal hydroxide or carbonate or ammonia or ammonium carbonate at 15-95 DEG C. or by precipitation at constant pH by adding the reactants uniformly to the reactor. The precipitate is washed and dried at 105-200 DEG C. and may be calcined say at 650 DEG C. The catalyst may be pelleted or extruded before or after calcination and subsequently reduced by heating to 130-200 DEG C. in a gas containing carbon monoxide, e.g. the gas to be used in the conversion reaction.ALSO:Catalysts for the reaction of carbon monoxide or gases containing carbon monoxide with steam at below 250 DEG C are prepared by coprecipitation of a sparingly water-soluble or insoluble compounds of copper and aluminium together with chromium compounds and/or manganese compounds or by precipitation of compounds of copper and chromium and/or manganese onto an oxide or hydroxide of aluminium and subsequent reduction at below 250 DEG C and in which the weight ratio of copper to aluminium is from 1:1 to 20:1. The weight ratio of copper to chromium and/or manganese may be from 100:0.5 to 100:24.

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