Regeneration of decoked alkaline sulfite pulp liquor
    1.
    发明授权
    Regeneration of decoked alkaline sulfite pulp liquor 失效
    分解碱性硫酸钠浆液的再生

    公开(公告)号:US3761349A

    公开(公告)日:1973-09-25

    申请号:US3761349D

    申请日:1971-06-03

    Applicant: TEXACO INC

    CPC classification number: D21C11/0085 Y02P40/44 Y10S423/03

    Abstract: DECOKED ALKALINE SULFITE PULP LIQUOR HAVING AN EXCESS OF SOLUBLE SULFITE IS REGENERATED BY TREATING WITH AN ALKALINE EARTH OXIDE AND/OR HYDROXIDE TO PRECIPITATE EXCESS SOLUBLE SULFITE ION AS INSOLUBLE ALKALINE EARTH SULFITE. THE SULFITE PRECIPITATE IS REMOVED BY FILTRATION AND THE RESULTING LIQUOR IS RECYCLED TO THE PULPING OPERATION. THE ALKALINE EARTH OXIDE AND SO2 ARE RECOVERED FROM THE FILTER CAKE BY HEATING.

    Process for treating water-soluble organic wastes
    3.
    发明授权
    Process for treating water-soluble organic wastes 失效
    处理水溶性有机废物的方法

    公开(公告)号:US3772181A

    公开(公告)日:1973-11-13

    申请号:US3772181D

    申请日:1971-10-27

    Applicant: TEXACO INC

    Inventor: COLE E HESS H

    CPC classification number: C02F11/08 C02F11/00 C02F11/18

    Abstract: A process for treating a waste feed stream containing essentially water-soluble organic wastes, in particular those originating in refinery reservoirs, refinery waste streams, refinery pits, and lube oil additive plants, is described as involving heating the stream under turbulent flow conditions to temperatures of 400* to 700*F and pressures of 300 to 3,100 psi in the presence of air or of oxygen thereby splitting off carbon dioxide. The oxidized waste stream, which has a considerably reduced chemical oxygen demand, is continuously fed to a hot contacting zone and is in heat-exchange relationship with the incoming effluent stream.

    Abstract translation: 描述了一种用于处理基本上含有水溶性有机废物,特别是那些源自炼油厂储层,炼油厂废物流,炼油厂和润滑油添加剂装置的废料进料流的方法,其包括将湍流条件下的物流加热到温度 在空气或氧气存在下,400至700°F的压力为300至3,100 psi,从而将二氧化碳分解。 具有显着降低的化学需氧量的氧化废物流被连续地供给到热接触区,并且与进入的流出物流处于热交换关系。

    Formation reduction in pressure coking equipment
    4.
    发明授权
    Formation reduction in pressure coking equipment 失效
    压力设备设备的减排

    公开(公告)号:US3855069A

    公开(公告)日:1974-12-17

    申请号:US32355473

    申请日:1973-01-15

    Applicant: TEXACO INC

    Inventor: HESS H FRANZ W COLE E

    CPC classification number: C10B43/14 C10B49/14 C10B53/00

    Abstract: Formation of mineral type scale in pressure coking equipment used in coking waste materials in the liquid phase is eliminated by effecting the coking of such materials using direct countercurrent heat exchange with a hot hydrocarbon stream which is kept continuously circulating along the walls of the equipment.

    Abstract translation: 在液相中焦化废料中使用的压焦设备中形成矿物类型规模,通过使用与沿设备壁连续循环的热碳氢化合物的直接逆流热交换进行这种材料的焦化来消除 。

    Coking of spent pulping liquors with subsequent so{11 {11 absorption
    5.
    发明授权
    Coking of spent pulping liquors with subsequent so{11 {11 absorption 失效
    随着时间的推移,随着时间的推移,

    公开(公告)号:US3770574A

    公开(公告)日:1973-11-06

    申请号:US3770574D

    申请日:1969-11-12

    Applicant: TEXACO INC

    Inventor: HESS H COLE E

    CPC classification number: C02F1/025 C02F11/18 Y10S423/03

    Abstract: Spent Sulfite liquor from a sulfite mill digester is preheated and then heated in a closed system at a temperature in the range of 450* to 700*F under autogenous pressure for a period of 0.5 minutes to six hours to form an effluent liquid and a sulfurcontaining coke. The coke is burned to furnish steam for the process and flue gas from which the SO2 evolved is absorbed by the effluent liquid thus forming additional cooking liquor which is recycled to the digester. Volatile gases from the digester are also oxidized to SO2 which is combined with that formed by burning the coke.

    Abstract translation: 来自亚硫酸盐蒸煮器的亚硫酸钠废液预热,然后在封闭系统中,在自生压力为450〜700°F的温度下加热0.5〜6小时,形成流出液和硫 含焦炭。 燃烧焦炭以为该过程提供蒸汽并且SO 2放出的烟道气被排放液体吸收,从而形成再循环至消化器的另外的蒸煮液。 来自蒸煮器的挥发性气体也被氧化成与通过燃烧焦炭形成的SO 2组合的SO 2。

    Production of methane rich fuel gas
    7.
    发明授权
    Production of methane rich fuel gas 失效
    生产富含甲烷的燃料气

    公开(公告)号:US3759679A

    公开(公告)日:1973-09-18

    申请号:US3759679D

    申请日:1971-07-23

    Applicant: TEXACO INC

    Inventor: FRANZ W HESS H

    CPC classification number: C10G47/12 C10G2400/26

    Abstract: A LIQUID HYDROCARBON FUEL IS REACTED WITH HYDROGEN AND H2O OVER A NICKEL OXIDE-CHROMIUM OXIDE CATALYST AT HIGH PRESSURE TO PRODUCE A METHANE-RICH FUEL GAS. PREFERABLY, HYDROGEN IN THE PRODUCT GAS IS RECOVERED AND TOTALLY RECYCLED TO THE REACTION ZONE. OPTIONALLY, CO2 MAY BE REMOVED FROM THE PRODUCT GAS PRODUCING SUBSTANTIALLY PURE METHANE.

    Water purification
    8.
    发明授权
    Water purification 失效
    净水

    公开(公告)号:US3731801A

    公开(公告)日:1973-05-08

    申请号:US3731801D

    申请日:1971-03-15

    Applicant: TEXACO INC

    Inventor: HESS H GUPTILL F

    CPC classification number: C02F1/10 C02F1/042 Y10S159/17 Y10S159/33 Y10S203/11

    Abstract: Method of separating from hard water dissolved mineral hardness constituents whose solubility varies inversely with temperature, in which the water temperature is raised by direct, preferably cocurrent contact with a preheated stream of liquid hydrocarbon oil, to a temperature sufficient to precipitate hardness constituents but below the temperature at which the hot oil will extract water, and at a pressure sufficient to maintain the oil and water in liquid phase.

    Abstract translation: 从硬水溶解的矿物硬度组分中分离出溶解度与温度成反比的方法,其中水温通过与预热的液态烃油直接,优选并流接触而升高至足以沉淀硬度成分但低于 热油将提取水的温度,以及足以使油和水保持液相的压力。

    High pressure thermal treatment of waste oil-containing sludges
    9.
    发明授权
    High pressure thermal treatment of waste oil-containing sludges 失效
    含油废物的高压热处理

    公开(公告)号:US3716474A

    公开(公告)日:1973-02-13

    申请号:US3716474D

    申请日:1970-10-22

    Applicant: TEXACO INC

    Inventor: HESS H COLE E

    CPC classification number: C10G33/00 C02F11/18

    Abstract: Oil-water emulsion-type sludges, in particular refinery pit sludges are thermally treated at a temperature of at least 750* F under pressure of at least 3,000 psi to give a gas phase containing saturated hydrocarbons, suitable as fuel or cracking stock, a usable oil fraction, a water phase and a useful siltcoke phase.

    Abstract translation: 油水乳液型污泥,特别是炼油厂污泥在至少750°F的压力下在至少3,000psi的压力下进行热处理,得到含有饱和烃的气相,其适合作为燃料或裂化原料,可用的 油分,水相和有用的粉砂 - 焦炭相。

    COKING OF WASTE ALKALINE SULFITE PULP LIQUOR AT LOWERED pH
    10.
    发明授权
    COKING OF WASTE ALKALINE SULFITE PULP LIQUOR AT LOWERED pH 失效
    在较低的pH下处理废物碱性硫酸钠浆液

    公开(公告)号:US3836427A

    公开(公告)日:1974-09-17

    申请号:US14942571

    申请日:1971-06-03

    Applicant: TEXACO INC

    Inventor: COLE E HESS H FRANZ W

    CPC classification number: C02F1/025 D21C11/02 D21C11/14 Y10S423/03

    Abstract: The liquid phase coking of waste alkaline sulfite pulp liquors can be effected at a faster rate and a lower temperatures by lowering the pH of such liquors by at least one pH unit. Also desirably, both the coke yield is increased and the Chemical Oxygen Demand of the resulting effluent is lowered. The pH lowering is achieved by adding sulfur dioxide to the waste liquor either as free SO2 or a water solution of SO2. The effluent and the chemicals recovered after coking can be recycled in the paper pulp process from which they were recovered.

    Abstract translation: 废碱性亚硫酸盐浆液的液相焦化可以通过将这种液体的pH降低至少一个pH单位,以更快的速率和较低的温度进行。 还期望地,焦炭产率都增加,并且所得流出物的化学需氧量降低。 通过向废液中添加二氧化硫作为游离SO 2或SO 2的水溶液来实现pH降低。 排出物和焦化后回收的化学品可以在纸回收过程中循环使用。

Patent Agency Ranking