Regeneration of decoked alkaline sulfite pulp liquor
    2.
    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.

    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。

    Process for treating water-soluble organic wastes
    7.
    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。

    Fuel oil blending to improve pour reduction
    9.
    发明授权
    Fuel oil blending to improve pour reduction 失效
    燃油混合,以减少减少

    公开(公告)号:US3792984A

    公开(公告)日:1974-02-19

    申请号:US3792984D

    申请日:1970-06-25

    Applicant: TEXACO INC

    CPC classification number: C10L1/1973

    Abstract: A low pour point fuel oil blend is prepared from a major amount of a high pour point, low sulfur, waxy, residual fuel and a minor amount of low-waxy, low pour, residual fuel oil by adding thereto from 0.01 to 0.5 percent by weight of an oil soluble ethylenevinyl fatty acid ester copolymer in which the fatty acid component of the ester has a carbon content of from about 2 to about 6; the copolymer having a molecular weight between about 20,000 and 31,000, a melt index of about 5 to about 28 and a vinyl fatty acid ester content of from about 24 to about 34 percent. The copolymer may be added either in a water-glycol emulsion or in a hydrocarbon to one of the blend components which has been heated to between about 200* to 400*F.

    Abstract translation: 低倾点燃料油混合物由主要量的高倾点,低硫,蜡质,残余燃料和少量低蜡,低倾倒残留燃料油制备,通过加入其中的0.01至0.5%由 油溶性乙烯 - 乙烯基脂肪酸酯共聚物的重量,其中酯的脂肪酸组分的碳含量为约2至约6; 共聚物的分子量在约20,000和31,000之间,熔体指数为约5至约28,乙烯基脂肪酸酯含量为约24至约34%。 共聚物可以以水 - 乙二醇乳液或烃的形式加入到已经加热至约200-400°F的共混物组分中。

    Treatment of heavy petroleum oils
    10.
    发明授权
    Treatment of heavy petroleum oils 失效
    重油石油处理

    公开(公告)号:US3779895A

    公开(公告)日:1973-12-18

    申请号:US3779895D

    申请日:1971-12-23

    Applicant: TEXACO INC

    Inventor: WILSON R COLE E

    CPC classification number: C10G67/0463 C10G31/08 C10G2300/107

    Abstract: Metal and asphaltene-containing heavy petroleum oils are subjected to high temperature steam treatment and then contacted with a deasphalting solvent. The product is particularly suited for further catalytic treatment.

    Abstract translation: 对含金属和含沥青质的重质石油进行高温蒸汽处理,然后与脱沥青溶剂接触。 该产品特别适用于进一步的催化处理。

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