Method and apparatus for multiple-stage and recycle wet oxidation
    1.
    发明授权
    Method and apparatus for multiple-stage and recycle wet oxidation 失效
    用于多级回收湿法氧化的方法和装置

    公开(公告)号:US5358646A

    公开(公告)日:1994-10-25

    申请号:US3240

    申请日:1993-01-11

    IPC分类号: C02F1/72 C02F11/08

    CPC分类号: C02F1/725 C02F11/086

    摘要: An organic or inorganic feed compound can be treated in two or more zones to progressively oxidize the compound. The first zone oxidizes the compound to an intermediate product which includes a first intermediate compound which is intermediate the feed compound and end product. The second zone further oxidizes the intermediate product to an end product or a second intermediate compound which is intermediate the first intermediate compound and an end product. One or both zones may operate catalytically and/or at supercritical conditions for water to oxidize the compounds.

    摘要翻译: 可以在两个或更多个区域中处理有机或无机进料化合物以逐渐氧化化合物。 第一区域将化合物氧化成中间产物,其包括在进料化合物和最终产物之间的第一中间体化合物。 第二区进一步将中间产物氧化成终产物或第二中间体化合物,其是第一中间体化合物和最终产物之间的中间体。 一个或两个区域可以在催化和/或超临界条件下操作以使水氧化化合物。

    Method of producing off-gas having a selected ratio of carbon monoxide
to hydrogen
    3.
    发明授权
    Method of producing off-gas having a selected ratio of carbon monoxide to hydrogen 失效
    产生具有一定比例的一氧化碳与氢气的废气的方法

    公开(公告)号:US5578647A

    公开(公告)日:1996-11-26

    申请号:US359467

    申请日:1994-12-20

    摘要: A method of producing an off-gas with a selected CO/H.sub.2 ratio of from about 0.1 to about 8 and a CO/CO.sub.2 ratio of at least about 0.1 by hydrothermal processing is provided. The method comprises the step of contacting a reactant capable of producing CO and H.sub.2 under hydrothermal conditions at a temperature of at least about 374.degree. C. and a pressure of at least about 22.1 MPa in the presence of water and with an amount of an additive effective to produce the selected CO/H.sub.2 ratio. The contacting is for a time sufficient to produce off-gas having the selected CO/H.sub.2 ratio and having a CO/CO.sub.2 ratio of at least about 0.1. Presence of the additive may enhance or may reduce the ratio of carbon monoxide to hydrogen in the off-gas. The additive may be an acid, a base, a salt, an oxide, or an oxidant. The off-gas having a selected CO/H.sub.2 ratio may be used for synthesis of organic compounds.

    摘要翻译: 提供了通过水热处理产生具有约0.1至约8的选定CO / H 2比和至少约0.1的CO / CO 2比的废气的方法。 该方法包括在水和在一定量的添加剂的存在下,在至少约374℃的温度和至少约22.1MPa的压力的水热条件下使能够产生CO和H 2的反应物接触的步骤 有效地产生选定的CO / H 2比。 接触时间足以产生具有选择的CO / H 2比且CO / CO 2比至少约0.1的废气。 添加剂的存在可以增强或可以减少废气中的一氧化碳与氢的比例。 添加剂可以是酸,碱,盐,氧化物或氧化剂。 具有选择的CO / H 2比的废气可用于合成有机化合物。

    Controlled hydrothermal processing
    5.
    发明授权
    Controlled hydrothermal processing 失效
    受控水热处理

    公开(公告)号:US5565616A

    公开(公告)日:1996-10-15

    申请号:US240032

    申请日:1994-05-09

    IPC分类号: C07C1/00 C07C4/00

    CPC分类号: C07C1/00 Y02P20/544

    摘要: Production of alkanes from an alkyl bound to a heteroatom under controlled hydrothermal conditions at supercritical or near critical water conditions including the use of an additive. The method reduces the extent of oxidation, generates useful and recoverable products, alters product distributions, promotes product yield, and enhances reaction rates. Additives alter product distributions and neutralize or consume mineral acids.

    摘要翻译: 在超临界或近临界水条件下(包括使用添加剂)在受控水热条件下从与烷基结合的烷基生成烷烃。 该方法减少氧化程度,产生有用和可回收的产品,改变产品分布,促进产品产量,并提高反应速率。 添加剂改变产品分布并中和或消耗无机酸。

    Apparatus for reverse-injection wet oxidation
    7.
    发明授权
    Apparatus for reverse-injection wet oxidation 失效
    逆向注射湿氧化设备

    公开(公告)号:US5421998A

    公开(公告)日:1995-06-06

    申请号:US191390

    申请日:1994-02-04

    摘要: A system for effective utilization of reaction heat and in situ separation of solid and gaseous products in wet oxidation of waste and wastewater. This invention does not require special preheaters for preheating feed streams, therefore reducing the possibility of scale and char formation in the heat exchange zone. The cold feed stream is introduced into the reactor with part of the effluent which has been recycled through a high temperature pumping means to form a hot, near critical oxidant-containing mixture. The cold feed is directly heated up by the oxidant-containing mixture. The reaction mixture is separated by in situ crossflow filtration elements, including sintered material. Catalyzed reactions and sintered material gas separation are also described.

    摘要翻译: 一种有效利用固体和气态产物在废水和废水湿氧化中的反应热和原位分离的系统。 本发明不需要用于预热进料流的特殊预热器,因此降低了在热交换区中的氧化皮和炭的形成的可能性。 将冷进料流引入反应器中,其中一部分流出物已经通过高温泵送装置再循环以形成热的,接近临界的含氧化剂的混合物。 冷进料由含氧化剂的混合物直接加热。 反应混合物通过原位交叉流过滤元件分离,包括烧结材料。 还描述了催化反应和烧结材料气体分离。