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    Spit flow hydrodesulfurization of petroleum fraction
    14.
    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
    15.
    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.

    Water treating process
    16.
    发明授权
    Water treating process 失效
    水处理工艺

    公开(公告)号：US3606731A

    公开(公告)日：1971-09-21

    申请号：US3606731D

    申请日：1969-11-20

    Applicant: TEXACO INC

    Inventor： COLE EDWARD ,  HESS HOWARD V

    IPC: B01D17/04 ,  C02F1/02 ,  B01D19/00 ,  B01D37/00 ,  C02B1/02 ,  C02B1/34

    CPC classification number: C02F1/025 ,  Y02W10/37

    Abstract: A WATER TREATMENT PROCESS FOR BREAKNG EMULSIONS SUCH AS ALGAE-OIL-WATER EMULSIONS INTO GAS, OIL, WATER AND COKE INCLUDES THE STEPS OF COKING THE EMULSIONS UNDER AUTOGENOUS PRESSURE AT 450 TO 700*F. FOR 0.5 MINUTE TO 120 MINUTES, COOLING TO FORM A SEPARABLE, FOUR PHASE SYSTEM COMPRISING GASES, OIL, WATER AND COKE; VENTING OFF THE GASES; REMOVING THE OIL TO THEREBY OBTAIN A WATER-COKE SLURRY, FILTERING OFF THE COKE AND COLLECTING AN AQUEOUS PHASE. THE AQUEUS PHASE CAN BE REDUCED IN COD BY TREATING WITH AIR AT ELVATED TEMPERATURE PRIOR TO FINAL DISPOSAL. THE OIL IS SUITABLE FOR REVYCLING TO A CRUDE STILL. THE PROCESS CAN BE CARRIED OUT EITHER BAECHWISE OR ON A CONTINUOUS BASIS AND IS PARTICULARLY USEFUL FOR BREAKING ALGAE-OIL EMULSIONS OCCURING IN API SEPARATORS.

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