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    Removal of carbon dioxide and/or hydrogen sulfide from gases containing olefines and acetylenes
    1.
    发明授权
    Removal of carbon dioxide and/or hydrogen sulfide from gases containing olefines and acetylenes 失效
    从含有烯烃和乙烯的气体中除去二氧化碳和/或硫化氢

    公开(公告)号：US3660016A

    公开(公告)日：1972-05-02

    申请号：US3660016D

    申请日：1968-12-16

    Applicant: BASF AG

    Inventor： JOHN HARALD ,  LUEHDEMANN ROLF ,  RITTINGER WILHELM ,  SLIWKA ARTUR ,  SAUM WALTER

    IPC: B01D53/52 ,  C07C7/11 ,  B01D53/34 ,  B01D53/16

    CPC classification number: B01D53/526 ,  C07C7/11 ,  Y02P20/152

    Abstract: A process for the removal of CO2 and/or H2S from gases containing olefins and acetylenes by absorption in an aqueous solution of an alkali metal salt of amino acid and desorption by decompressing and heating the solvent, which comprises treating the solvent, before or after desorption, with a hydrocarbon mixture substantially consisting of benzene for the purpose of removing impurities and, after said treatment, separating the hydrocarbon mixture from the aqueous solution.

    Abstract translation: 通过在氨基酸的碱金属盐的水溶液中吸收和解吸的溶剂来除去含有烯烃和炔烃的气体的二氧化碳和/或硫化氢的方法，其包括在解吸附加之前或之后处理溶剂 ，其中基本上由苯组成的烃混合物用于除去杂质，并且在所述处理之后，将烃混合物与水溶液分离。

    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.

    Removal of carbonyl sulphide and organic combined sulphur from gases containing olefines
    5.
    发明专利
    Removal of carbonyl sulphide and organic combined sulphur from gases containing olefines 未知

    公开(公告)号：GB981656A

    公开(公告)日：1965-01-27

    申请号：GB1629063

    申请日：1963-04-25

    Applicant: BASF AG

    Inventor： SCHMIDT HANS WILHELM ,  RITTINGER WILHELM ,  GERSTACKER ELFRIEDE

    IPC: C07C7/11

    Abstract: Carbonyl sulphide and organic combined sulphur are removed from olefin containing gases by washing under superatmospheric pressure with a caustic alkali solution of 2 to 6% by weight of the total weight of the solution at 50 DEG to 110 DEG C. in one or more reaction vessels whose exchange surface is not less than 2 sq. m./cu. m. of the hourly throughput of gas. Starting materials used may be obtained by thermal or autothermal cracking of petroleum or fractions thereof. Preferably the process takes place at 85 DEG to 95 DEG C. at a pressure of 10 to 35 atmospheres. As shown, an olefin containing gas having the composition 8.7% CO, 14.3% H2, 5.1% N2, 25.3% CH4, 8.0% C2H6, 0.4% C3H8, 29.8% C2H4, 6.8% C3H6 and 1.6% C4H8 is introduced through pipe 1 and contacts in absorption tower 2 caustic soda solution supplied in countercurrent flow through pipe 6. Tower 2 is filled with 35 mm. steel rings to a depth of 15 m., the internal diameter of the tower being 1.3 m., so that an exchange surface of about 4 sq. m./cu. m. of gas results. Purified olefin containing gas passes out through line 3 and the caustic soda solution is recycled through retention tank 8, pump 9 and heater 5. Spent liquor may be withdrawn from the system through pipe 10 and used for a preliminary purification step and an equivalent volume of fresh caustic soda solution supplied through pipe 4. The carbonyl sulphide and organic combined sulphur can thus be removed to the extent of 90% or more. Columns having suitable baffles or a packing of conventional tower packing, e.g. packed columns, bubble tray columns and bubble columns are also suitable as reactors in the process of the present invention, which may be continuous or batchwise.

    Removing Polymerisation Products In The Selective Hydrogenation Of Acetylene In Mixtures Of Ethylene And Ethane
    6.
    发明专利
    Removing Polymerisation Products In The Selective Hydrogenation Of Acetylene In Mixtures Of Ethylene And Ethane 未知

    公开(公告)号：GB1155879A

    公开(公告)日：1969-06-25

    申请号：GB4952366

    申请日：1966-11-04

    Applicant: BASF AG

    Inventor： RITTINGER WILHELM ,  KUCZATY DIETER ,  BUSCHMANN KARL

    IPC: C07C7/00 ,  C07C7/12 ,  C07C7/167

    Abstract: 1,155,879. Purifying ethylene/ethane mixtures. BADISCHE ANILIN- & SODAFABRIK A.G. 4 Nov., 1966 [5 Nov., 1965; 24 May, 1966], No. 49523/66. Heading C5E. Mixtures of ethylene and ethane, which have been selectively catalytically hydrogenated (e.g. over a Pd catalyst) to remove small amounts of acetylene therefrom, are treated to remove polymerization products formed during the hydrogenation by passage over a layer of coke, silica gel and/or alumina gel. The treatment is preferably conducted under the same pressure as the hydrogenation. Suitable layers of coke Rc are 2-6 metres deep, and the gas mixture is usually passed upwards through the layer, oily polymers being drained continuously or periodically from the bottom of the layer.

    Removing nitric oxide from gas mixtures
    8.
    发明专利
    Removing nitric oxide from gas mixtures 未知

    公开(公告)号：GB1056755A

    公开(公告)日：1967-01-25

    申请号：GB4100263

    申请日：1963-10-17

    Applicant: BASF AG

    Inventor： RITTINGER WILHELM ,  BUSCHMANN KARL

    IPC: C07C7/148 ,  C10K1/00 ,  C10K1/10 ,  C10K1/12

    Abstract: Nitric oxide is removed from gas mixtures containing carbon monoxide, carbon dioxide, hydrogen, nitrogen and saturated and unsaturated hydrocarbons, which are to be subjected to low temperature treatment, by a process comprising adding oxygen in slight excess over that required for oxidation of the nitric oxide according to the reaction 2NO + O2 --> 2NO2 and forming and separating nitrogen dioxide and any secondary oxidation products such as dinitrogen trioxide and dinitrogen tetroxide simultaneously with the removal of carbon dioxide by washing with an aqueous washing liquid under a pressure of 8-40 atmospheres in a scrubber. The wash may be sodium or potassium hydroxide or sodium carbonate. Oxygen is supplied either in the gas phase or in dissolved form in the wash liquid, which is preferably at room temperature. Nitric oxide contents of 1 p.p.m. are thus reducible to 0.01 p.p.m.

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