PROCESS AND APPARATUS FOR EXOTHERMIC REACTIONS
    52.
    发明申请
    PROCESS AND APPARATUS FOR EXOTHERMIC REACTIONS 审中-公开
    过程反应的方法和装置

    公开(公告)号:WO1990009234A1

    公开(公告)日:1990-08-23

    申请号:PCT/DK1990000034

    申请日:1990-02-12

    Abstract: A cooled reactor for exothermic catalytic conversion of gaseous materials, e.g. for the oxo synthesis, for the conversion of hydrogen and nitrogen to form ammonia and for the reaction of carbon oxides with hydrogen to form methanol, comprises a cylindrical pressure shell (10), distributor means (34) for synthesis gas, at least one tube sheet (30) and one or more catalyst beds (20) provided with cooling tubes (38) for the indirect cooling of reacting gas. Each cooling tube (38) consists of an outer tube (4) provided with a heat exchanging outer wall (7); this outer tube surrounds and is coaxial with an inner tube (2) and hence defines an annular space the inner wall of which is provided with perforations (8) to direct the stream of cooling gas, which may consist of or contain components of the synthesis gas, to the annular space and along the heat exchanging wall. There is obtained a very rapid equalization of temperature differences in the catalyst bed, which causes an improved yield and hence makes it possible to decrease the amount of catalyst for a given process.

    SULFURIC ACID PROCESS AND APPARATUS
    53.
    发明申请
    SULFURIC ACID PROCESS AND APPARATUS 审中-公开
    硫酸工艺和装置

    公开(公告)号:WO1989012024A1

    公开(公告)日:1989-12-14

    申请号:PCT/DK1989000129

    申请日:1989-05-18

    CPC classification number: B01D53/8609 C01B17/76 C01B17/806 Y02C20/30

    Abstract: Flue gases etc. may contain SO2 which should be prevented from admission to the atmosphere. SO2 is oxidized to SO3 and condensed with steam to H2SO4-vapours which are condensed in vertical glass tubes cooled from the outside. In principle the condensate is collected near the bottom of the tubes. In the cooling process a mist of very small H2SO4 droplets is formed and tends to escape to the atmosphere. Environmental regulations continually increase the demands on reducing the amount of acid mist escaping. According to the invention an important method to achieve a reduction of the escape of acid mist is to pass the gas leaving each tube through an aerosol filter in gastight connection with the tube top. Such a filter may consist of acid resistant fibres or filaments having a thickness of 0.04-0.7 mm and may be arranged in specified manners to ensure a drop of pressure through below 20 mbar. Moreover, the sulfuric acid caught in the filter is caused to flow downwardly through the tube countercurrently with the feed gas. Various embodiments of filters and filter media for the purpose are disclosed. The sulfuric acid recovered is highly pure and highly concentrated.

    PROCESS FOR THE PREPARATION OF URETHANES
    54.
    发明申请
    PROCESS FOR THE PREPARATION OF URETHANES 审中-公开
    制备URETHANES的方法

    公开(公告)号:WO1986005178A1

    公开(公告)日:1986-09-12

    申请号:PCT/US1986000411

    申请日:1986-02-25

    CPC classification number: C07C271/06

    Abstract: Process for preparing urethanes by reacting a solution of a nitrogen-containing organic compound and a hydroxyl-containing organic compound with carbon monoxide in the presence of a ruthenium catalyst. The selectivity of this process is increased by the use of methanol instead of various other alkanols, e.g. ethanol. Preferably the catalyst is a halide-free ruthenium catalyst, e.g. a ruthenium carbonyl complex.

    Abstract translation: 在钌催化剂存在下使含氮有机化合物和含羟基有机化合物的溶液与一氧化碳反应制备聚氨酯的方法。 该方法的选择性通过使用甲醇代替各种其它链烷醇而增加。 乙醇。 优选地,催化剂是不含卤化物的钌催化剂,例如 羰基钌络合物。

    WASTE HEAT BOILER
    55.
    发明申请
    WASTE HEAT BOILER 审中-公开
    废热锅炉

    公开(公告)号:WO2012041344A1

    公开(公告)日:2012-04-05

    申请号:PCT/EP2010/005968

    申请日:2010-09-30

    Abstract: A waste heat boiler has heat exchange tubes for indirect heat exchange of a relatively hot process gas and a cooling media, and a by-pass tube for by-passing a part of the process gas; a process gas collector collects and mixes a part of the heat exchanged process gas and at least a part of the by-passed process gas before the mix is lead via a control valve to the process gas outlet of the waste heat boiler together with the rest of the heat exchanged process gas.

    Abstract translation: 废热锅炉具有用于相对热处理气体和冷却介质的间接热交换的热交换管和用于旁路一部分处理气体的旁通管; 过程气体收集器将一部分热交换过程气体和至少一部分旁通工艺气体收集并混合,然后混合物通过控制阀引导到废热锅炉的工艺气体出口以及其余部分 的热交换工艺气体。

    REACTOR FOR THE PREPARATION OF METHANOL
    57.
    发明申请
    REACTOR FOR THE PREPARATION OF METHANOL 审中-公开
    制备甲醇的反应器

    公开(公告)号:WO2009106231A1

    公开(公告)日:2009-09-03

    申请号:PCT/EP2009/000972

    申请日:2009-02-12

    Inventor: Max Thorhauge

    Abstract: Improved design of a catalytic reactor for the production of methanol at equilibrium conditions whereby methanol as it is formed is separated from the gaseous phase into the liquid phase within the reactor, without reducing the catalytic activity of the methanol catalysts This is achieved by adjusting the boiling point of a liquid cooling agent being in indirect contact with the catalyst particles and by providing a specific ratio of catalyst bed volume to cooling surface area. Thereby, condensation of methanol as it is formed in the gaseous phase takes place at the cooling surface arranged evenly distributed within the reactor and within a very limited region of the catalyst bed.

    Abstract translation: 用于在平衡条件下生产甲醇的催化反应器的改进设计,其中形成的甲醇在反应器内从气相分离成液相,而不降低甲醇催化剂的催化活性。这通过调节沸点 液体冷却剂的点与催化剂颗粒间接接触,并且通过提供催化剂床体积与冷却表面积的特定比例。 因此,在气相中形成的甲醇的冷凝发生在均匀分布在反应器内并且在催化剂床的非常有限的区域内的冷却表面上。

    METHOD OF PREPARING AMMONIA
    58.
    发明申请
    METHOD OF PREPARING AMMONIA 审中-公开
    制备氨基酸的方法

    公开(公告)号:WO1990000153A1

    公开(公告)日:1990-01-11

    申请号:PCT/DK1989000149

    申请日:1989-06-19

    Abstract: When producing ammonia in a conventional ammonia plant there is obtained a substantially improved process economy by incorporating a fuel cell into the ammonia plant. A gas stream rich in carbon dioxide, obtained during the production of ammonia, is passed to the cathode gas loop of the fuel cell; and/or a purged gas stream emanating from the process plant and containing one or more components usable as fuel for the fuel cell is fed to the anode chamber of the fuel cell. Finally, exhaust gas usable as fuel is passed from the anode chamber of the fuel cell to the front end of the process plant. An improved production of electricity is obtained in the fuel cell; and the stream rich in carbon dioxide formed in the ammonia plant is utilized, whereas normally it is a waste product.

    Abstract translation: 当在常规氨装置中生产氨时,通过在氨装置中加入燃料电池可获得显着提高的工艺经济性。 在生产氨期间获得的富含二氧化碳的气流被传递到燃料电池的阴极气体回路; 和/或从处理装置发出并含有可用作燃料电池的燃料的一种或多种组分的净化气流被供给到燃料电池的阳极室。 最后,作为燃料使用的废气从燃料电池的阳极室通到处理厂的前端。 在燃料电池中获得改善的电力生产; 并且利用在氨装置中形成的富含二氧化碳的物流,而通常它是废物。

    CRYSTALLINE ALUMINOSILICATE AND A METHOD FOR ITS PREPARATION
    59.
    发明申请
    CRYSTALLINE ALUMINOSILICATE AND A METHOD FOR ITS PREPARATION 审中-公开
    水晶铝酸钠及其制备方法

    公开(公告)号:WO1987004368A1

    公开(公告)日:1987-07-30

    申请号:PCT/DK1987000004

    申请日:1987-01-20

    CPC classification number: B01J21/16 B01J29/049 B01J2229/42 C01B33/28

    Abstract: Synthetic layered crystalline aluminosilicates which, apart from the possible presence of water of crystallization, have the general formula expressed as moles of oxides ratios: (M2/nO)x : (SiO2)y : (Al2O3)z, where M represents one or more n-valent cations selected amongst sodium, potassium and any other cations capable of replacing sodium or potassium by ion-exchange, the ratio y/z being between 15 and 300, the ratio x/z being determined from the criterion of electron neutrality between anions and cations, and wherein the structural aluminium is tetrahedrally coordinated in crystal lattice, are suitable as catalysts for the preparation of higher hydrocarbons from a raw material containing lower olefins or oxygenates. These aluminosilicates are prepared from a synthesis mixture the composition of which, expressed as moles of oxides, is: SiO2/Al2O3: 5-500, preferably: 10-300; M2/nO/SiO2: 0.1-10, preferably: 0.1-2; OH/SiO2: 0.1-5, preferably: 0.2-4; H2O/SiO2: 5-200, preferably: 5-75. The synthesis mixture is held under autogenous pressure at a temperature of 80-270 DEG C for 4 hours to 100 days, preferably at 95-160 DEG C for 10 hours to 30 days.

    Abstract translation: 除了可能存在结晶水之外,合成层状结晶硅铝酸盐具有以氧化物摩尔数表示的通式:(M2 / nO)x:(SiO 2)y:(Al 2 O 3)z,其中M表示一个或多个 选自钠,钾和能够通过离子交换替代钠或钾的任何其它阳离子的n价阳离子,比率y / z在15和300之间,x / z是根据阴离子之间的电子中性标准确定的 和阳离子,并且其中结构铝在晶格中四面体配位,适合作为用于由含低级烯烃或含氧化合物的原料制备高级烃的催化剂。 这些铝硅酸盐由合成混合物制备,其组成以氧化物的摩尔数表示,为:SiO 2 / Al 2 O 3:5-500,优选为:10-300; M2 / nO / SiO2:0.1-10,优选:0.1-2; OH / SiO 2:0.1-5,优选0.2-4; H 2 O / SiO 2:5-200,优选5-75。 合成混合物在80-270℃的自生压力下保持4小时至100天,优选在95-160℃保持10小时至30天。

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