Solid acid supercritical alkylation reactions using carbon dioxide
and/or other co-solvents
    92.
    发明授权
    Solid acid supercritical alkylation reactions using carbon dioxide and/or other co-solvents 失效
    使用二氧化碳和/或其他共溶剂的固体酸超临界烷基化反应

    公开(公告)号:US5907075A

    公开(公告)日:1999-05-25

    申请号:US872865

    申请日:1997-06-11

    Abstract: Improved isoparaffin-olefin alkylation solid catalyst processes are provided which are characterized by low coke laydown and catalyst deactivation rates and production of valuable branched chain, high octane number alkylates. The processes of the invention involve providing a starting reactant mixture comprising an isoparaffin, an olefin and a co-solvent or diluent (carbon dioxide in molar excess, methane, hydrogen or mixtures thereof), and contacting the reactant mixture with an alkylation catalyst at near-critical or preferably supercritical conditions for the reaction mixture. The carbon dioxide serves as a co-solvent and reduces the critical temperature (T.sub.c) of the reaction mixture, thereby allowing lower reaction temperatures. The isoparaffin and olefin reactants are preferably pretreated to minimize moisture, peroxide and oxygenate impurities therein.

    Abstract translation: 提供改进的异链烷烃烯烃烷基化固体催化剂方法,其特征在于低焦炭沉淀和催化剂失活速率和有价值的支链高辛烷值烷基化物的生产。 本发明的方法包括提供起始反应物混合物,其包含异链烷烃,烯烃和共溶剂或稀释剂(摩尔过量的二氧化碳,甲烷,氢气或其混合物),并将反应混合物与烷基化催化剂接近 重要或优选超临界条件。 二氧化碳用作助溶剂并降低反应混合物的临界温度(Tc),由此允许较低的反应温度。 优选对异链烷烃和烯烃反应物进行预处理,以使其中的水分,过氧化物和含氧化合物的杂质最小化。

    Internal platelet heat source and method of use in a supercritical water
oxidation reactor
    94.
    发明授权
    Internal platelet heat source and method of use in a supercritical water oxidation reactor 失效
    内部血小板热源及其在超临界水氧化反应器中的应用

    公开(公告)号:US5670040A

    公开(公告)日:1997-09-23

    申请号:US696205

    申请日:1996-08-13

    Abstract: A process and apparatus for the supercritical water oxidation of organic waste materials which avoids or at least substantially reduces the corrosion and solids deposition problems associated with prior art techniques and which provides for efficient heating of the waste material to reaction conditions. Externally heated supercritical water is fed to a compound platelet tube reactor. The compound reactor includes a reaction zone and inner (smaller) and outer (larger) concentric platelet tubes supported concentrically within a shell. The water fed to the reactor both protectively coats surfaces of the inner and outer platelet tubes facing the reaction zone and heats the waste stream to oxidation reaction conditions. Higher reaction temperatures can be used as compared to prior art processes, which significantly improves the reaction rate and permits smaller reactors to be used. The protective films of water on the surfaces of the platelet tubes, coupled with the elimination of preheating of the waste material, substantially reduces solids deposition and corrosion.

    Abstract translation: 用于有机废物的超临界水氧化的方法和装置,其避免或至少基本上减少与现有技术相关的腐蚀和固体沉积问题,并提供废物对反应条件的有效加热。 将外部加热的超临界水送入复合血小板反应器。 复合反应器包括反应区和内(较小)和外(较小)的同心的小心管,同心地在壳内。 供应到反应器的水均有保护地涂覆面向反应区的内部和外部血小板管的表面,并将废物流加热至氧化反应条件。 与现有技术方法相比,可以使用更高的反应温度,这显着地提高了反应速率并允许使用较小的反应器。 在血小板管表面上的水的保护膜加上消除废物的预热,基本上减少了固体沉积和腐蚀。

    Method and device in high-pressure treatment of liquid substances
    95.
    发明授权
    Method and device in high-pressure treatment of liquid substances 失效
    液体物质高压处理方法及装置

    公开(公告)号:US5658610A

    公开(公告)日:1997-08-19

    申请号:US525622

    申请日:1995-09-22

    CPC classification number: A61L2/02 A23L2/42 A23L3/015 B01J19/20 B01J3/008 B01J3/04

    Abstract: A method and device for high-pressure treatment of liquid substances, for example foodstuffs. The substance undergoes a cyclic process whereby a limited amount of the substance during each cycle is pressurized in a pressure intensifier (1) to a predetermined pressure and is then maintained at this pressure for a predetermined period of time. After the substance has been pressurized in the pressure intensifier (1), it is conducted to a pressure chamber (10) while maintaining the predetermined pressure. The substance is further caused to reside in the pressure chamber (10) for the predetermined period of time by being caused to pass over a predetermined distance between an inlet (9a) and an outlet (9b), which are arranged in the pressure chamber (10).

    Abstract translation: PCT No.PCT / SE94 / 00260 Sec。 371日期1995年9月22日 102(e)1995年9月22日PCT 1994年3月23日PCT公布。 公开号WO94 / 21145 日期1994年9月29日液体物质例如食品的高压处理方法和装置。 物质经历循环过程,由此在每个循环期间将有限量的物质在增压器(1)中加压至预定压力,然后在该压力下保持预定的时间。 物质在增压器(1)中被加压之后,在保持预定压力的同时将其传导到压力室(10)。 物质进一步通过在设置在压力室中的入口(9a)和出口(9b)之间经过预定距离而在压力室(10)中停留预定时间段 10)。

    Supercritical oxidation reactor
    96.
    发明授权

    公开(公告)号:US5558783A

    公开(公告)日:1996-09-24

    申请号:US377420

    申请日:1995-01-24

    CPC classification number: C02F1/008 B01J3/008 C02F11/086 Y02P20/544

    Abstract: The invention relates to an improved apparatus and method for initiating and sustaining an oxidation reaction. A fuel, such as natural gas or hazardous waste, is introduced into a reaction zone within a pressurized containment vessel. A permeable liner is placed within the containment vessel and around the reaction zone. An oxidizer, preferably oxygen, is mixed with a carrier fluid, such as water, and the mixture is heated and pressurized to supercritical conditions of temperature and pressure. The supercritical oxidizer-carrier mix is introduced to the reaction zone gradually and uniformly, over a comparatively large area, by forcing it radially inward through the permeable liner and toward the reaction zone. A means and method for cooling the exhausted by-products and using them as a cleansing rinse are disclosed.

    Hydrotreating of heavy hydrocarbon oils in supercritical fluids
    99.
    发明授权
    Hydrotreating of heavy hydrocarbon oils in supercritical fluids 失效
    在超临界流体中加氢处理重质烃油

    公开(公告)号:US5496464A

    公开(公告)日:1996-03-05

    申请号:US385676

    申请日:1995-02-08

    Abstract: A process is described for hydrotreating a heavy hydrocarbon oil containing a substantial portion of material which boils above 524.degree. C. to form lower boiling materials, which comprises adding to the heavy hydrocarbon oil as solvent a paraffinic, isoparaffinic or cyclic paraffinic hydrocarbon which is also hydrogen-rich and has a critical temperature of less than 500.degree. C. to thereby form a diluted feedstock mixture and subjecting said feedstock mixture to hydrotreating in the presence of activated carbon catalyst at a temperature and pressure substantially at or greater than the critical temperature and pressure of the solvent.

    Abstract translation: 描述了一种加氢处理含有大部分沸点高于524℃的大部分材料的重质烃油的方法,以形成较低沸点的材料,其包括将重质烃油作为溶剂加入石蜡,异链烷烃或环状链烷烃,其也是 富氢并且具有小于500℃的临界温度,从而形成稀释的原料混合物,并在活性炭催化剂存在下,在基本上等于或高于临界温度的温度和压力下使所述原料混合物加氢处理, 溶剂的压力。

    Supercritical water oxidation reactor with a corrosion-resistant lining
    100.
    发明授权
    Supercritical water oxidation reactor with a corrosion-resistant lining 失效
    超临界水氧化反应器具有耐腐蚀衬里

    公开(公告)号:US5461648A

    公开(公告)日:1995-10-24

    申请号:US329417

    申请日:1994-10-27

    Abstract: A supercritical water oxidation reactor includes a vessel with an interiorurface, two cooling sections, a heat exchanger, an oxygenating section, a pump, and a trap. The interior surface of the vessel has a corrosion-resistant, artificial ceramic or diamond-like coating. The artificial diamond coating is thin and crystal-like in structure. The heat exchanger is located between the two cooling sections. The heat exchanger and the two cooling sections surround the exterior of the vessel. The oxygenating section comprises a porous cylindrical baffle positioned within the vessel. The porous baffle transfers oxygen, hydrogen peroxide, or other oxygenating substances to an aqueous hazardous waste introduced into the reactor.In accordance with another aspect of the invention, the oxygenating section includes a shaft having a helical extension. The shaft has a corrosion-resistant, artificial diamond or diamond-like coating on its outer surface. The shaft rotates the helical extension to assist in removing solids from the aqueous hazardous waste.

    Abstract translation: 超临界水氧化反应器包括具有内表面的容器,两个冷却部分,热交换器,氧合部分,泵和捕集器。 容器的内表面具有耐腐蚀,人造陶瓷或类金刚石涂层。 人造金刚石涂层结构薄,晶体状。 热交换器位于两个冷却段之间。 热交换器和两个冷却部分围绕容器的外部。 氧合部分包括位于容器内的多孔圆柱形挡板。 多孔挡板将氧气,过氧化氢或其他氧化物质转移到引入反应器的有害废水中。 根据本发明的另一方面,氧合部分包括具有螺旋延伸部的轴。 轴在其外表面上具有耐腐蚀的人造金刚石或类金刚石涂层。 轴旋转螺旋延伸部分以帮助从含水危险废物中除去固体。

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