Production of low sulfur fuel oil
    5.
    发明授权
    Production of low sulfur fuel oil 失效
    生产低硫燃油

    公开(公告)号:US3658681A

    公开(公告)日:1972-04-25

    申请号:US3658681D

    申请日:1970-02-24

    Applicant: TEXACO INC

    CPC classification number: C10G65/16 C10G45/02

    Abstract: Low sulfur fuel oil is prepared by distilling an asphaltcontaining petroleum fraction to obtain a vacuum gas oil and vacuum residuum. The vacuum gas oil is passed downwardly with hydrogen through an upper bed of desulfurization catalyst; the residuum fraction is passed upwardly through one or more lower beds of desulfurization catalyst, and the desulfurized effluents are combined. It is found advantageous to pass the distilled fraction down through the desulfurization zone with less residence time and the residual fraction up through the zone to subject it to more back-mixing and turbulence and thereby effecting a longer residence time.

    Abstract translation: 通过蒸馏含沥青的石油馏分制备低硫燃料油,以获得真空瓦斯油和真空渣油。 真空瓦斯油通过氢气通过上层脱硫催化剂; 残渣馏分向上通过一个或多个下层脱硫催化剂,并将脱硫流出物合并。 发现有利的是将蒸馏的馏分向下通过脱硫区,停留时间较短,残余馏分向上通过该区域以使其进行更多的回混和湍流,从而实现更长的停留时间。

    Process for increasing the yield of lower boiling hydrocarbons
    7.
    发明授权
    Process for increasing the yield of lower boiling hydrocarbons 失效
    增加下锅炉油田的工艺

    公开(公告)号:US3671421A

    公开(公告)日:1972-06-20

    申请号:US3671421D

    申请日:1970-11-13

    Applicant: TEXACO INC

    CPC classification number: C10G27/00

    Abstract: A process for increasing the yield of lower boiling hydrocarbons from heavy hydrocarbon fractions by oxidizing a heavy hydrocarbon fraction using for example air followed by subjecting the oxidized heavy hydrocarbon fraction to both a pyrolysis step and hydrocracking step.

    Abstract translation: 通过使用例如空气氧化重质烃馏分,然后使氧化的重质烃馏分进行热解步骤和加氢裂化步骤来提高来自重质烃馏分的低沸点烃的产率的方法。

    Desulfurization of a preoxidized oil
    8.
    发明授权
    Desulfurization of a preoxidized oil 失效
    一种预氧化油的脱硫

    公开(公告)号:US3668117A

    公开(公告)日:1972-06-06

    申请号:US3668117D

    申请日:1970-03-17

    Applicant: TEXACO INC

    CPC classification number: C10G67/12 C10G45/26

    Abstract: A sulfur-containing oil is initially preoxidized with an oxidant, such as, an organic peroxide, an organic hydroperoxide, air or an organic peracid in the presence of a Group IV-B, Group V-B or VI-B metal catalyst, water is then added to the preoxidized oil and desulfurization is carried out with sodium oxide, potassium oxide or calcium oxide catalyst on an alumina support. Water is added to the oil prior to desulfurization at a concentration ranging from 1 to 20 percent by weight.

    Abstract translation: 在IV-B族,VB族或VI-B族金属催化剂的存在下,最初用含氧化剂如有机过氧化物,有机氢过氧化物,空气或有机过酸预氧化含硫油,然后将水 加入预氧化油中,用氧化铝,氧化钾或氧化钙催化剂在氧化铝载体上进行脱硫。 在脱硫之前以1至20重量%的浓度将水加入到油中。

    Split flow hydrocracking process
    10.
    发明授权
    Split flow hydrocracking process 失效
    分流流水解工艺

    公开(公告)号:US3607723A

    公开(公告)日:1971-09-21

    申请号:US3607723D

    申请日:1969-03-28

    Applicant: TEXACO INC

    CPC classification number: C10G65/18

    Abstract: A hydrocracking process for the substantially complete hydrocracking of a heavy hydrocarbon charge stock by introducing a heavy hydrocarbon charge stock into a catalyst zone comprising a first catalyst zone below and a second catalyst zone above the point of entry of the charge stock, in the presence of hydrogen which is introduced in countercurrent relationship to said charge stock in first catalyst zone and maintained at a rate sufficient to provide for lower boiling liquid contact of the second catalyst zone followed by recycling the remaining hydrocarbon material from the first catalyst zone to the charge stock.

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