Formation reduction in pressure coking equipment
    1.
    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 。

    Production of methane rich fuel gas
    3.
    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.

    COKING OF WASTE ALKALINE SULFITE PULP LIQUOR AT LOWERED pH
    4.
    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。

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