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    Sewage treatment unit
    1.
    发明授权
    Sewage treatment unit 失效
    污水处理单元

    公开(公告)号：US3864254A

    公开(公告)日：1975-02-04

    申请号：US34563773

    申请日：1973-03-28

    Applicant: TEXACO INC

    Inventor： HESS HOWARD V ,  FRANZ WILLIAM F ,  COLE EDWARD L

    IPC: C02F1/72 ,  C02F9/00 ,  C02F11/10 ,  C02B1/02 ,  C02B3/08

    CPC classification number: C02F11/10 ,  C02F1/722 ,  C02F2103/005 ,  Y02W10/40

    Abstract: A sewage treatment unit for the disposal of aqueous waste sewage from a small installation such as a service station includes a primary settling zone receiving the sewage and separating raw sludge from the water. A first pump conveys the water to a storage zone and actuates a second pump which meters in hydrogen peroxide from a supply thereof into the storage zone to reduce the COD of the water. A pump forces the settled sludge to a coking zone where it is coked in the liquid phase. The coke thus formed then passes to a pressure settling device where it is separated from the coking effluent which is recycled to the storage zone.

    Abstract translation: 用于从诸如维修站的小型设施处置废水污水的污水处理单元包括接收污水的初级沉淀区和从水中分离生污泥。 第一泵将水输送到储存区域，并致动将过氧化氢从其供应量计入储存区的第二泵，以减少水的COD。 泵迫使沉淀的污泥进入焦化区，在该焦化区中它被液化。 这样形成的焦炭然后传递到压力沉降装置，在该压力沉降装置中，该焦炭流出物被再循环到储存区。

    Integrated process for coking spent base sulfite pulping liquors
    4.
    发明授权
    Integrated process for coking spent base sulfite pulping liquors 失效
    焦化废碱性亚硫酸盐制浆液的综合工艺

    公开(公告)号：US3864205A

    公开(公告)日：1975-02-04

    申请号：US39190873

    申请日：1973-08-27

    Applicant: TEXACO INC

    Inventor： FRANZ WILLIAM F ,  HESS HOWARD V ,  COLE EDWARD L ,  NEISSER KENNETH E

    IPC: C02F9/00 ,  D21C11/12 ,  D21C11/14

    CPC classification number: D21C11/125 ,  C02F2103/28

    Abstract: In the coking of spent ammonia and low pH sodium base sulfite wood pulping liquors in the liquid phase under pressure, gel-type coke formation is avoided by rapid heating to the coking temperature. Such rapid heating can be accomplished by the use of a metal bath having high heat transfer capacity, by using high pressure-high temperature steam injection or by means of a fluidized bed combustion system. The heating rate used is one of about 110* to about 150*F. per minute in the temperature interval of about 350* to about 550*F.

    Abstract translation: 在压力下在液相中废氨和低pH亚硫酸钠木浆制浆液的焦化，通过快速加热至焦化温度避免了凝胶型焦炭的形成。 这种快速加热可以通过使用具有高传热能力的金属浴，通过使用高压 - 高温蒸汽注入或通过流化床燃烧系统来实现。 在约350℃至约550℃的温度间隔中，所用的加热速率为约110℃至约150°F /分钟之间。

    Spit flow hydrodesulfurization of petroleum fraction
    7.
    发明授权
    Spit flow hydrodesulfurization of petroleum fraction 失效
    石油馏分的吐水加氢脱硫

    公开(公告)号：US3897329A

    公开(公告)日：1975-07-29

    申请号：US42787573

    申请日：1973-12-26

    Applicant: TEXACO INC

    Inventor： FRANZ WILLIAM F ,  HESS HOWARD V

    IPC: C10G65/16 ,  C10G23/00

    CPC classification number: C10G65/16

    Abstract: Heavy hydrocarbon oils are desulfurized in a split flow catalytic process in which the upper catalyst bed temperature is at least 875*F. and the lower catalyst bed temperature is below 850*F.

    Abstract translation: 重质烃油在上层催化剂床温度至少为875°F，较低催化剂床温度低于850°F的分流式催化方法中脱硫。

    Coking of spent pulping liquors used in the alkaline sulfite process
    8.
    发明授权
    Coking of spent pulping liquors used in the alkaline sulfite process 失效
    在碱性硫酸盐工艺中使用的活性浆液的处理

    公开(公告)号：US3884751A

    公开(公告)日：1975-05-20

    申请号：US24737972

    申请日：1972-04-25

    Applicant: TEXACO INC

    Inventor： HESS HOWARD V ,  COLE EDWARD L ,  FRANZ WILLIAM F

    IPC: D21C11/02

    CPC classification number: D21C11/02

    Abstract: Presented is a process wherein spent pulping liquors used in the Alkaline Sulfite Process for pulping wood and having a pH of about 9 to 12 are coked in the liquid phase in a coking zone at about 450*F to 750*F and autogenous pressure of 100 to 3000 psig for 0.5 minute to 6 hours. The gases, liquid effluent and coke which form are separated. The coke is washed for removal of salts and dried with flue gas. Next, the dried coke and the gas are burned to produce steam, supply heat for coking and to generate SO2 in the flue gas. Some of the effluent is flashed in a flashing zone to produce water for washing the coke followed by heat exchange of the bottoms from the flashing zone with the spent liquors to preheat the same. Other portions of the effluent are recombined and reconstituted for use as pulping liquor. No pH reduction is necessary prior to coking and the COD of the effluent is normally about 75 percent less than that of the starting liquors.

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