VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION VON CHLORWASSERSTOFF
    4.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION VON CHLORWASSERSTOFF 有权
    用于生产氯氯化氢气相氧化

    公开(公告)号:EP1581457A1

    公开(公告)日:2005-10-05

    申请号:EP03789225.4

    申请日:2003-12-11

    IPC分类号: C01B7/04 B01J8/06

    摘要: The invention relates to a method for producing chlorine by oxidising hydrogen chlorine in a gaseous phase by means of a gas flow containing molecular oxygen and in the presence of a fixed bed catalyst. Said invention is characterised in that the inventive method is carried out in a reactor (1) comprising a bundle of parallel contact tubes (2) disposed in a direction of the reactor length whose ends are fixed to a tube plate (3), a convex cover (4) arranged on each end of the reactor (1), one or several annular deflecting sheets (6) which are arranged in a perpendicular direction with respect to the direction of length of the reactor in a space (5) between the contact tubes (2) in such a way that circular passage openings (8) are formed in the middle of the reactor. The inventive reactor also comprises one or several deflecting discoidal sheets (7) disposed in such a way that annular passages (9) are formed on the edge thereof, said deflecting annular (6) and discoidal (7) sheets being arranged in an alternate manner. According to said invention, the contacting tubes (2) are filled with the fixed bed catalyst, hydrogen chlorine and the gas flow containing molecular oxygen are channelled from one end of the reactor to the contact tubes (2) by means of one of said convex covers (4), a reaction gaseous mixture is extracted at the level of the opposite end of the reactor by means of the second convex cover (4) and a fluid heat-exchanging agent is channelled to the interspace (5) encompassing the contact tubes (2).

    VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION VON CHLORWASSERSTOFF

    公开(公告)号:EP1572582A1

    公开(公告)日:2005-09-14

    申请号:EP03789224.7

    申请日:2003-12-11

    IPC分类号: C01B7/04 B01J8/06

    摘要: Disclosed is a method for producing chlorine by means of gas phase oxidation of hydrogen chloride with a gas flow containing molecular oxygen in the presence of a fixed-bed catalyst. Said method is carried out in a reactor (1) comprising a nest of contact tubes (2) that are disposed parallel to each other in the longitudinal direction of the reactor and are fastened within tube bottoms (3) at the ends thereof, a hood (4) that is arranged at both ends of the reactor (1), and one or several deflecting metal sheets (6) which are disposed perpendicular to the longitudinal direction of the reactor in the intermediate space (5) between the contact tubes (2) and alternately release opposite passages (7) located on the inner wall of the reactor (1). The contact tubes (2) are filled with the fixed-bed catalyst, the hydrogen chloride and the gas flow containing molecular oxygen are directed from one end of the reactor through the contact tubes (2) via a hood (4) and are withdrawn from the opposite end of the reactor via the second hood (4), and a liquid heat-exchanging substance is directed through the intermediate space (5) around the contact tubes (2).

    摘要翻译: 本发明公开了一种在固定床催化剂存在下通过含有分子氧的气流气相氧化氯化氢来生产氯的方法。 所述方法在反应器(1)中进行,所述反应器包括在反应器的纵向方向上彼此平行布置并且在管端部(3)的端部处固定在管底部(3)内的接触管(2) (1)的两端设置的一个或多个偏转金属板(6),以及一个或多个偏转金属板(6),所述偏转金属板垂直于反应器的纵向设置在接触管(2)之间的中间空间(5) )并且交替地释放位于反应器(1)的内壁上的相对通道(7)。 接触管(2)填充有固定床催化剂,氯化氢和含有分子氧的气流从反应器的一端经由罩(4)引导通过接触管(2),并从 通过第二罩(4)的反应器的相对端和液体热交换物质被引导通过围绕接触管(2)的中间空间(5)。

    FESTBETTVERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH KATALYTISCHE GASPHASEN-OXIDATION VON CHLORWASSERSTOFF
    8.
    发明公开
    FESTBETTVERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH KATALYTISCHE GASPHASEN-OXIDATION VON CHLORWASSERSTOFF 有权
    硬床工艺用于生产氯氯化氢气相催化氧化

    公开(公告)号:EP1542923A1

    公开(公告)日:2005-06-22

    申请号:EP03769275.3

    申请日:2003-09-12

    IPC分类号: C01B7/00 B01J23/46

    CPC分类号: C01B7/04 B01J23/462

    摘要: The invention relates to a method for production of chlorine by catalytic gas-phase oxidation of hydrogen chloride on a catalytic fixed bed comprising the steps: a) a feed gas stream (I), containing hydrogen chloride and a feed gas stream (II), containing oxygen are prepared, b) the feed gas stream (I), the feed gas stream (II), optionally a recycle stream (Ia), containing hydrogen chloride, optionally an oxygen-containing recycle stream (IIa) and a recycle stream (III) are fed into an oxidation zone and hydrogen chloride oxidised in the presence of a catalyst arranged in the fixed bed to give chlorine, whereby a product gas stream (IV) is obtained containing chlorine, unreacted oxygen, unreacted hydrogen chloride and water vapour, c) the recycle stream (III) is removed from the product gas stream (IV) and recycled to the oxidation zone, whereupon a product gas stream (IVa) remains. The ratio of the streams (III)/(IVa) is in general 0.005 to 3, preferably 0.2 to 1.5 and more preferably 0.4 to 1. The recycle stream (III) is preferably sucked off one or more of the gas streams (I), (II) and optionally (IIa) by means of a jet nozzle.

    VERFAHREN ZUR HERSTELLUNG VON CHLOR
    10.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CHLOR 有权
    用于生产氯

    公开(公告)号:EP1656322A1

    公开(公告)日:2006-05-17

    申请号:EP04763900.0

    申请日:2004-08-06

    IPC分类号: C01B7/04

    CPC分类号: C01B7/04 Y02P20/228

    摘要: The invention relates to a method for producing chlorine by means of catalytic gas phase oxidation. Said method comprises the following steps: a) a feed gas stream I containing hydrogen chloride and a feed gas stream II containing oxygen are provided; b) feed gas stream I, feed gas stream II, an optional back flow Ia containing hydrogen chloride, and an optional back flow IIa containing oxygen are fed into a first oxidation zone and are contacted with a first oxidation catalyst in a first oxidation stage in which a first partial quantity of the hydrogen chloride oxidizes into chlorine while a gas stream III is obtained that contains chlorine, unreacted oxygen, unreacted hydrogen chloride, and steam; c) gas stream III is fed into a second oxidation zone and is contacted with at least one additional oxidation catalyst in a second oxidation stage in which a second partial quantity of the hydrogen chloride oxidizes into chlorine while a product gas stream IV is obtained that contains chlorine, unreacted oxygen, unreacted hydrogen chloride, and steam; d) chlorine, optionally back flow Ia, and optionally back flow IIa are recovered from product gas stream IV. The inventive method is characterized in that the first oxidation catalyst used in the first oxidation zone is provided in a fluidized bed while the additional oxidation catalyst/s used in the second oxidation zone is/are provided in a fixed bed.