Process for the removal of HCN from gas mixtures
    1.
    发明授权
    Process for the removal of HCN from gas mixtures 失效
    从气体混合物中除去HCN的方法

    公开(公告)号:US5660807A

    公开(公告)日:1997-08-26

    申请号:US553588

    申请日:1996-05-13

    Abstract: The invention relates to a process for the removal of HCN from gas mixtures that contain at least HCN and sulfur compounds, especially from gas mixtures that are obtained by partial oxidation of hydrocarbons, by catalytic decomposition of HCN, as well as a catalyst for the decomposition of HCN. According to the invention, the gas mixture is brought into contact with a catalyst which decomposes the HCN by hydrogenation and/or by hydrolysis and COS that is contained in the gas mixture is decomposed at least partially in this catalyst by hydrolysis. Advantageously, a catalyst that is based on titanium oxide and/or zirconium oxide as a vehicle and that contains chromium oxide as an active component is used. Advantageously, the catalyst is reduced during catalyst production or before use with H.sub.2 and/or a reducing gas at temperatures above the operating temperature of catalytic decomposition.

    Abstract translation: PCT No.PCT / EP94 / 01646 Sec。 371日期:1996年5月13日 102(e)日期1996年5月13日PCT提交1994年5月20日PCT公布。 出版物WO94 / 29004 日期1994年12月22日本发明涉及从气体混合物中除去HCN的方法,所述气体混合物至少含有HCN和硫化合物,特别是通过烃的部分氧化获得的气体混合物,HCN的催化分解以及 用于分解HCN的催化剂。 根据本发明,使气体混合物与通过氢化和/或水解分解HCN的催化剂接触,并且气体混合物中包含的COS至少部分地通过水解在该催化剂中分解。 有利地,使用基于氧化钛和/或氧化锆作为载体并且含有氧化铬作为活性组分的催化剂。 有利地,催化剂在催化剂生产期间或在高于催化分解操作温度的温度下用H2和/或还原气体使用之前被还原。

    Process for the simultaneous removal of H.sub.2 S, SO.sub.2 and
elemental sulfur from gaseous mixtures
    2.
    发明授权
    Process for the simultaneous removal of H.sub.2 S, SO.sub.2 and elemental sulfur from gaseous mixtures 失效
    同时从气体混合物中除去H 2 S,SO 2和元素硫的方法

    公开(公告)号:US4530827A

    公开(公告)日:1985-07-23

    申请号:US545427

    申请日:1983-10-26

    CPC classification number: B01D53/523 C01B17/05 C10K1/16

    Abstract: A process for the simultaneous removal of H.sub.2 S, SO.sub.2 and elemental sulfur from gaseous mixtures, comprises treating the gaseous mixture with a solvent. After the solvent becomes loaded with the components to be removed, it is regenerated and reused. In order to obtain savings in costs and energy, the sulfur is separated from the loaded solvent by lowering the temperature thereof. In this way, chemical regeneration of the scrubbing medium takes place within the cycle eliminating the requirement for outside regenerating apparatus.

    Abstract translation: 从气体混合物中同时除去H 2 S,SO 2和元素硫的方法包括用溶剂处理气态混合物。 溶剂加载待除去的组分后,再次再生再利用。 为了节省成本和能量,通过降低其温度将硫与负载的溶剂分离。 以这种方式,洗涤介质的化学再生在循环内进行,消除了对外部再生装置的要求。

    Claus residual gas cleanup using tetraethylene glycol dimethyl ethers as
SO.sub.2 scrubbing agent
    3.
    发明授权
    Claus residual gas cleanup using tetraethylene glycol dimethyl ethers as SO.sub.2 scrubbing agent 失效
    克劳斯残留气体净化使用四乙二醇二甲醚作为SO2洗涤剂

    公开(公告)号:US4795620A

    公开(公告)日:1989-01-03

    申请号:US20182

    申请日:1987-02-27

    CPC classification number: B01D53/8612 B01D53/507 C01B17/0456 Y02P20/129

    Abstract: A process is disclosed for the purification of a gaseous stream contaminated at least with CO.sub.2 and H.sub.2 S. The gaseous stream is preheated and subjected, in the presence of recycled SO.sub.2, to a catalytic conversion of H.sub.2 S into elemental sulfur. The thus-obtained sulfur is separated, and the residual gas, which contains at least H.sub.2 S, SO.sub.2, CO.sub.2, and water, is freed absorptively from SO.sub.2 after oxidative conversion of H.sub.2 S to SO.sub.2. It is proposed that the residual gas, after oxidative conversion of H.sub.2 S to SO.sub.2, is cooled in heat exchangers, preferably regenerators, and is subsequently scrubbed with a solvent consisting predominantly of tetraethylene glycol dimethyl ether.

    Abstract translation: 公开了一种用于净化至少被CO 2和H 2 S污染的气流的方法。 将气流预热并在再循环的SO 2存在下进行催化转化为硫化氢。 由此获得的硫被分离,并且至少含有H 2 S,SO 2,CO 2和水的残余气体在氧化成H 2 S至SO 2之后从SO 2吸收释放。 建议将H2S氧化转化成SO2后的残余气体在热交换器,优选再生器中冷却,随后用主要由四甘醇二甲醚组成的溶剂洗涤。

    Heat interchanging process and reactor therefor
    4.
    发明授权
    Heat interchanging process and reactor therefor 失效
    热交换过程及其反应器

    公开(公告)号:US4732918A

    公开(公告)日:1988-03-22

    申请号:US724702

    申请日:1985-04-18

    Abstract: For conducting exothermic catalytic reactions, e.g., production of methane from CO.sub.x and H.sub.2, a reactor is cooled internally by indirect heat exchange with a single heat exchanger provided in the reactor feed inlet region with a gradually increasing surface intensity (defined as the product of the overall coefficient of thermal conductivity, (h), of the tube wall times the cooling surface density, m.sup.2 /m.sup.3) reaching a maximum intensity at a central zone of the heat exchanger where the preponderant cooling occurs. A zone of gradually decreasing cooling surface intensity may also be provided at the outlet end of the reactor, and uncooled adiabatic zones may be incorporated in the zones immediate the inlet and outlet ends of the reactor.

    Abstract translation: 为了进行放热催化反应,例如从CO x和H 2生产甲烷,反应器通过与设置在反应器进料入口区域中的单个热交换器间接热交换而内部冷却,其表面强度逐渐增加(定义为 总体热导率系数(h),管壁时间等于冷却表面密度,m2 / m3)达到发生主要冷却的换热器中心区域的最大强度。 还可以在反应器的出口端设置逐渐降低的冷却表面强度的区域,并且非冷却的绝热区域可以立即并入反应器的入口端和出口端的区域中。

    METHOD FOR PRODUCING CRUDE OIL
    6.
    发明申请
    METHOD FOR PRODUCING CRUDE OIL 审中-公开
    生产原油的方法

    公开(公告)号:US20100101808A1

    公开(公告)日:2010-04-29

    申请号:US12582155

    申请日:2009-10-20

    CPC classification number: E21B43/168

    Abstract: The invention describes a method for injecting a fluid into a crude oil-containing layer of rock or earth by means of a suitable line, wherein the line is introduced into the layer of rock or earth and the fluid is injected for the purpose of an enhanced crude oil production from the crude oil-containing layer of rock or earth.

    Abstract translation: 本发明描述了一种通过合适的管线将流体注入岩石或地球的含油原油层的方法,其中将管线引入到岩石或泥土层中,为了增强的目的注入流体 原油生产来自原油含油层的岩石或地球。

    METHOD FOR PRODUCING CRUDE OIL
    7.
    发明申请

    公开(公告)号:US20100096146A1

    公开(公告)日:2010-04-22

    申请号:US12580524

    申请日:2009-10-16

    CPC classification number: E21B43/168

    Abstract: The invention describes a method for injecting a fluid into a crude oil-containing layer of rock or earth by means of a suitable line, wherein the line is introduced into the layer of rock or earth and the fluid is injected for the purpose of an enhanced crude oil production from the crude oil-containing layer of rock or earth.

    Process for treating wastewater which contains sour gases
    8.
    发明授权
    Process for treating wastewater which contains sour gases 失效
    处理含有酸性气体的废水的方法

    公开(公告)号:US5035810A

    公开(公告)日:1991-07-30

    申请号:US450311

    申请日:1989-12-15

    Abstract: For the treatment of a wastewater containing sour gases with a stripping gas, resultant stripping gas containing the sour gases is introduced into at least one combustion stage within the total process for recovery of the sulfur-containing components, the wastewater being stripped with at least a portion of the amount of O.sub.2 -containing gas required in the subsequent combustion stages.

    Abstract translation: 对于利用汽提气体处理含有酸性气体的废水,将含有酸性气体的所得汽提气体引入到用于回收含硫组分的总方法中的至少一个燃烧阶段中,废水至少用 在随后的燃烧阶段中所需的含氧气体的量的一部分。

    Sulfur condenser and degasser unit
    9.
    发明授权
    Sulfur condenser and degasser unit 失效
    硫冷凝器和脱气装置

    公开(公告)号:US4764192A

    公开(公告)日:1988-08-16

    申请号:US889565

    申请日:1986-07-25

    CPC classification number: C01B17/0447 C01B17/021 C01B17/0232

    Abstract: In a sulfur condenser and degasser system associated with a Claus furnace, the condenser comprises a wound cross-countercurrent heat exchanger. Liquid sulfur is passed into the top of the condenser as reflux so that ascending sulfur droplets can be coalesced and the condenser can act as a rectifying column. The degassing is preferably carried out substantially simultaneously with the formation of liquid sulfur.

    Abstract translation: 在与克劳斯炉相关联的硫冷凝器和脱气装置中,冷凝器包括一个缠绕的交叉逆流热交换器。 液态硫作为回流通入冷凝器的顶部,使得上升的硫滴可以聚结并且冷凝器可以用作精馏塔。 脱气优选与液体硫的形成基本上同时进行。

    Method for the recovery of elemental sulfur from a gas mixture
containing H.sub.2 S
    10.
    发明授权
    Method for the recovery of elemental sulfur from a gas mixture containing H.sub.2 S 失效
    从含H2S的气体混合物中回收元素硫的方法

    公开(公告)号:US5676921A

    公开(公告)日:1997-10-14

    申请号:US654777

    申请日:1996-05-29

    CPC classification number: C01B17/0456 B01D53/8612 C01B17/046

    Abstract: This invention is a method for the recovery of elemental sulfur from a gas mixture containing H.sub.2 S. The gas mixture is first subjected to desulfurization in a Claus installation which has a thermal part and a catalytic part resulting in the recovery of elemental sulfur. Sulfur compounds still contained in the Claus tail gas are then transformed into H.sub.2 S by means of hydrogenation and, if necessary, by means of hydrolysis and the hydrogenated Claus tail gas is subjected to catalytic direct oxidation of the H.sub.2 S to elemental sulfur. The Claus installation comprises exactly one catalytic stage and the catalytic direct oxidation also takes place in exactly one reactor. Sulfur recovery rates of 99.3% to 99.6% are achieved by the method of the invention.

    Abstract translation: 本发明是从含有H 2 S的气体混合物中回收元素硫的方法。 气体混合物首先在具有加热部分和催化部分的Claus装置中进行脱硫,导致回收元素硫。 然后仍然包含在Claus尾气中的硫化合物通过氢化转化成H 2 S,如果需要的话通过水解将氢化的Claus尾气催化直接氧化成元素硫。 克劳斯安装包括恰好一个催化阶段,催化剂直接氧化也恰好在一个反应​​器中进行。 通过本发明的方法实现了99.3%至99.6%的硫回收率。

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