Measurement of ignition characteristics of distillate fuels
    1.
    发明授权
    Measurement of ignition characteristics of distillate fuels 失效
    馏出燃料的点燃特性的测量

    公开(公告)号:US4549815A

    公开(公告)日:1985-10-29

    申请号:US554014

    申请日:1983-11-21

    IPC分类号: G01N25/52 G01N33/28 G01N25/54

    CPC分类号: G01N25/52 G01N33/2829

    摘要: Ignition delay of distillate fuels is measured by heating a block to an elevated temperature and injecting samples into a cavity in the block as it cools. The time between each injection and ignition of the fuel is measured. This measurement of ignition delay is used to determine the cetane number of the distillate fuel.

    摘要翻译: 通过将块加热到升高的温度并将样品注入块中的空腔中来测量馏出燃料的点火延迟。 测量燃料的每次注入和点火之间的时间。 这种点火延迟的测量用于确定馏出燃料的十六烷值。

    Increasing the cetane number of diesel fuel by partial oxidation _
    2.
    发明授权
    Increasing the cetane number of diesel fuel by partial oxidation _ 失效
    通过部分氧化增加柴油燃料的十六烷值

    公开(公告)号:US4494961A

    公开(公告)日:1985-01-22

    申请号:US504115

    申请日:1983-06-14

    CPC分类号: C10L1/026 C10G27/04 F02B3/06

    摘要: The invention provides a method for increasing the cetane number of a low hydrogen content, highly aromatic distillate fuel by subjecting it to catalytic partial oxidation. Catalysts employed include transition metal oxides alone or in conjuction with alkali metal or alkaline earth metal compounds. Partial oxidation in accordance with the method of this invention not only results in cetane number improvement, but also allows a higher concentration of aromatic substituents in the fuel blend.

    摘要翻译: 本发明提供一种通过使其进行催化部分氧化来提高低含量的高芳族馏分燃料的十六烷值的方法。 所用的催化剂包括单独的或与碱金属或碱土金属化合物结合的过渡金属氧化物。 根据本发明的方法的部分氧化不仅导致十六烷值改进,而且还允许在燃料共混物中更高浓度的芳族取代基。

    Method for treating dewaxing catalysts
    3.
    发明授权
    Method for treating dewaxing catalysts 失效
    脱蜡催化剂的处理方法

    公开(公告)号:US4892646A

    公开(公告)日:1990-01-09

    申请号:US189454

    申请日:1988-05-02

    IPC分类号: B01J29/46 B01J29/90 C10G45/64

    摘要: A method for treating a porous crystalline catalyst optionally associated with a metal component such as a noble and/or base metal(s) is described. The method comprises contacting the catalyst with a low molecular weight aromatic compound under coking conditions. Such a treatment method increases the cycle length and the useful life of the catalyst. Using the treated catalyst in a dewaxing process and regenerating the catalyst by treating with hydrogen and a low molecular weight hydrocarbon.

    摘要翻译: 描述了用于处理任选与金属组分如贵金属和/或贱金属相关联的多孔结晶催化剂的方法。 该方法包括在焦化条件下使催化剂与低分子量芳族化合物接触。 这种处理方法增加了催化剂的循环长度和使用寿命。 在脱蜡过程中使用经处理的催化剂,并通过用氢气和低分子量烃处理来再生催化剂。

    Distillate fuel quality of FCC cycle oils
    5.
    发明授权
    Distillate fuel quality of FCC cycle oils 失效
    FCC循环油馏分燃料质量

    公开(公告)号:US4871444A

    公开(公告)日:1989-10-03

    申请号:US271398

    申请日:1988-11-10

    摘要: A method for improving the cetane number of an aromatic hydrocarbon oil such as FCC light cycle oil and thereby increase its value as a blending stock for diesel fuel or heating oil. In one embodiment, the FCC light cycle oil is alkylated in the presence of a solid acidic catalyst and with a linear mono-olefin having a chain length of at least five carbon atoms. In another embodiment, the light cycle oil is alkylated with an olefin having three to nine carbon atoms or a mixture thereof and with ZSM-20 as catalyst to decrease the frequency of catalyst regeneration.

    摘要翻译: 一种改进FCC轻质循环油等芳香族烃油的十六烷值的方法,由此增加作为柴油或加热油的混合原料的值。 在一个实施方案中,FCC轻质循环油在固体酸性催化剂和链长至少为5个碳原子的直链单烯烃的存在下烷基化。 在另一个实施方案中,光循环油用具有3-9个碳原子的烯烃或其混合物和ZSM-20作为催化剂烷基化以降低催化剂再生的频率。

    Method for reactivating spent catalyst by contact with one or more
aromatic compounds
    7.
    发明授权
    Method for reactivating spent catalyst by contact with one or more aromatic compounds 失效
    通过与一种或多种芳香族化合物接触来还原废催化剂的方法

    公开(公告)号:US4908341A

    公开(公告)日:1990-03-13

    申请号:US110318

    申请日:1987-10-20

    IPC分类号: B01J29/90 B01J38/04 C10G45/64

    CPC分类号: C10G45/64 B01J29/90 B01J38/04

    摘要: A method for regenerating a spent porous crystalline catalyst, optionally associated with a metal component such as noble and/or base metal(s), is described. The method comprises contacting the spent catalyst which has become deactivated by accumulation of carbonaceous residue with one or more light aromatic compounds under conditions resulting in reactivation of said catalyst. The light aromatic compounds employed are ones which have the capability of penetrating the catalyst, so as to contact the carbonaceous residue contained therein, undergoing alkylation by alkyl fragments contributed by components of the carbonaceous residue and diffusing from or otherwise escaping the catalyst.

    摘要翻译: 描述了用于再生任选与金属组分如贵金属和/或贱金属相关联的废多孔结晶催化剂的方法。 该方法包括使得在催化剂再活化的条件下使已经失活的废催化剂与碳酸残余物与一种或多种轻质芳族化合物的堆积接触。 所使用的轻芳香族化合物是具有穿透催化剂的能力的物质,以便与其中所含的含碳残渣接触,经由由碳质残余物的组分贡献的烷基片段进行烷基化,并从催化剂扩散或以其他方式逸出催化剂。