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    Hydroisomerization process for pour point reduction of long chain alkyl aromatic compounds
    2.
    发明授权
    Hydroisomerization process for pour point reduction of long chain alkyl aromatic compounds 失效
    长链烷基芳族化合物倾点降低的加氢异构化方法

    公开(公告)号：US5157187A

    公开(公告)日：1992-10-20

    申请号：US636828

    申请日：1991-01-02

    申请人： Quang N. Le ,  Stephen S. Wong

    发明人： Quang N. Le ,  Stephen S. Wong

    IPC分类号： C10M127/04

    CPC分类号： C10M127/04 ,  C10M2203/06

    摘要： There is provided a method for reducing the pour point of an alkyl aromatic lube base stock by hydroisomerizing alkyl side groups on alkyl aromatic compounds. The alkyl aromatic, compounds may be alkylated naphthalenes. The hydroisomerization reaction may take place over a catalyst comprising zeolite beta and platinum.

    摘要翻译： 提供了一种通过烷基芳族化合物上的烷基侧基加氢异构化来降低烷基芳族润滑剂基础油料的倾点的方法。 烷基芳族化合物可以是烷基化萘。 加氢异构化反应可以在包含β沸石和铂沸石的催化剂上进行。

    Synthetic lubricants
    4.
    发明授权
    Synthetic lubricants 失效
    合成润滑剂

    公开(公告)号：US5008460A

    公开(公告)日：1991-04-16

    申请号：US358108

    申请日：1989-05-30

    申请人： William E. Garwood ,  Quang N. Le ,  Joosup Shim ,  Stephen S. Wong

    发明人： William E. Garwood ,  Quang N. Le ,  Joosup Shim ,  Stephen S. Wong

    IPC分类号： C10G50/02 ,  C10G69/12

    CPC分类号： C10G50/02 ,  C10G69/126

    摘要： Synthetic lubricating oils having a predetermined alkylaromatic structure are prepared from a mixture of mono- or dialkenyl benzene with an aliphatic olefin by free-radical reaction in the presence of ditertiary-butyl peroxide, for example. Equivalent napthalene derivatives may be substituted for the dialkenyl benzene. The oils that are formed exhibit a high Viscosity Index, and a low pour point. The viscosity of the synthetic lube stock produced may be controlled by changing the amount of peroxide used.

    摘要翻译： 具有预定烷基芳族结构的合成润滑油例如由二叔丁基过氧化物存在下，由单 - 或二烯基苯与脂族烯烃的混合物通过自由基反应制备。 等价萘衍生物可代替二苯基苯。 所形成的油表现出高粘度指数和低倾点。 可以通过改变所用过氧化物的量来控制所生产的合成润滑油的粘度。

    High viscosity index lubricants
    6.
    发明授权
    High viscosity index lubricants 失效
    高粘度指数润滑剂

    公开(公告)号：US4975177A

    公开(公告)日：1990-12-04

    申请号：US382077

    申请日：1989-07-17

    申请人： William E. Garwood ,  Quang N. Le ,  Stephen S. Wong

    发明人： William E. Garwood ,  Quang N. Le ,  Stephen S. Wong

    IPC分类号： C10G65/04 ,  C10G67/04

    CPC分类号： C10G65/043 ,  C10G67/04

    摘要： Lubricant basestocks of high viscosity index, typically with V.I. of at least 130 or higher, and low pour point, typically below 5.degree. F., are produced by hydroisomerizing petroleum waxes such as slack wax or de-oiled wax, over zeolite beta and then dewaxing to target pour point. A preferred process employs a solvent dewaxing after the hydroisomerization step to effect a partial dewaxing with the separated waxes being recycled to the hydroisomerization step; dewaxing is then completed catalytically, typically over ZSM-5 or ZSM-23.

    摘要翻译： 高粘度指数的润滑油基础油，通常用V.I. 至少为130或更高，低倾点（通常低于5°F）通过沸石蜡或脱油蜡等石油蜡加氢异构化生产，然后脱蜡至目标倾点。 优选的方法是在加氢异构化步骤之后进行溶剂脱蜡以进行部分脱蜡，将分离的蜡再循环至加氢异构化步骤; 催化后完成脱蜡，通常在ZSM-5或ZSM-23上完成。

    Lubricant production process
    7.
    发明授权
    Lubricant production process 失效
    润滑油生产过程

    公开(公告)号：US4919788A

    公开(公告)日：1990-04-24

    申请号：US260857

    申请日：1988-10-21

    申请人： Nai Y. Chen ,  William E. Garwood ,  Tracy J. Huang ,  Quang N. Le ,  Stephen S. Wong

    发明人： Nai Y. Chen ,  William E. Garwood ,  Tracy J. Huang ,  Quang N. Le ,  Stephen S. Wong

    IPC分类号： C10G45/64 ,  C10G65/04 ,  C10G67/04

    CPC分类号： C10G67/04 ,  C10G45/64 ,  C10G65/043

    摘要： A process for producing lubricant oils of low pour point and high viscosity index by first carrying out a partial dewaxing of a lubricant base stock in an initial catalytic dewaxing operation, followed by a selective dewaxing step. The initial catalytic dewaxing step is carried out using a large pore, high silica zeolite dewaxing catalyst such as high silica Y or zeolite beta which dewaxes by isomerizing the waxy components of the base stock to less waxy brance chain isoparaffins but the severity of the operation is controlled so as to effect only a partial removal of the waxy components. Further removal of the waxy components is effected during the subsequent dewaxing step which is selective for the removal of the more waxy n-paraffin components, leaving the branched chain isoparaffins which contribute to a high VI in the product. The selective dewaxing step may be either a solvent, e.g. MEK dewaxing operation or a catalytic dewaxing using a highly shape selective zeolite such as ZSM-22 or ZSM-23. The severity of the initial catalytic dewaxing operation may be controlled so as to effect a net increase in the content of isoparaffins and because of the selective nature of the solvent dewaxing step, this increased isoparaffins concentration may be retained, producing a product of high VI. The pour point of the feedstock is preferably reduced during the initial catalytic dewaxing step to a value which is no lower than 10.degree. F. and preferably no lower than 20.degree. F., above the target pour point for the products. Generally, this will entail a reduction of at least 10.degree. F. and preferably at least 20.degree. F. in the pour point of the feed.

    摘要翻译： 首先在初始催化脱蜡操作中进行润滑剂原料的部分脱蜡，然后进行选择性脱蜡步骤，生产低倾点和高粘度指数的润滑油的方法。 初始催化脱蜡步骤使用大孔，高二氧化硅沸石脱蜡催化剂如高二氧化硅Y或沸石β进行，该脱蜡通过使基础油料的蜡质组分异构化成较少的蜡状分支链异链烷烃，但操作的严重性是 被控制以仅影响蜡组分的部分去除。 在随后的脱蜡步骤中进一步除去蜡状组分，该脱蜡步骤选择性地除去更多的蜡状正链烷烃组分，留下有助于产物中高VI的支链异链烷烃。 选择性脱蜡步骤可以是溶剂，例如 MEK脱蜡操作或使用ZSM-22或ZSM-23等高选择性沸石的催化脱蜡。 可以控制初始催化脱蜡操作的严重性，以便实现异链烷烃含量的净增加，并且由于溶剂脱蜡步骤的选择性，可以保留这种增加的异链烷烃浓度，从而产生高VI的产物。 原料的倾点优选在初始催化脱蜡步骤期间降低至不低于产物的目标倾点的10°F，优选不低于20°F的值。 通常，这将导致在进料的倾点下降至少10°F，优选至少降低20°F。

    Process configuration for producing high viscosity lubricating oils
    8.
    发明授权
    Process configuration for producing high viscosity lubricating oils 失效
    生产高粘度润滑油的工艺配置

    公开(公告)号：US4913794A

    公开(公告)日：1990-04-03

    申请号：US379511

    申请日：1989-07-13

    申请人： Quang N. Le ,  Robert A. Ware ,  Stephen S. Wong

    发明人： Quang N. Le ,  Robert A. Ware ,  Stephen S. Wong

    IPC分类号： C10G27/12 ,  C10G71/00

    CPC分类号： C10G71/00 ,  C10G2400/10

    摘要： A process is disclosed for improving the Viscosity Index of a hydrocarbon lubricating oil comprising the steps of providing a flow reactor having separate first and second inlet ports for the separate co-injection of lubricating oil and an organic peroxide, charging said lubricating oil and said organic peroxide of said flow reactor through said first and second inlet ports respectively, controlling the relative flowrates of said lubricating oil and organic peroxide reactants together with the total volumetric flowrate through said flow reactor to maintain a flow regime which favors diffusional mixing between said organic peroxide and said lubricating oil, and maintaining said organic peroxide and said lubricating oil under conversion conditions including temperatures of between about 50.degree. and 300.degree. C. and pressure sufficient to maintain said lubricating oil and said organic peroxide substantially in the liquid phase. Controlling the flow regime to favor diffusional rather than convective mixing between the lubricating oil and the organic peroxide has surprisingly been found to markedly enhance Viscosity Index improvement.

    摘要翻译： 公开了一种用于改进烃类润滑油的粘度指数的方法，该方法包括以下步骤：提供具有单独的第一和第二入口的流动反应器，用于单独共同注入润滑油和有机过氧化物，将所述润滑油和所述有机物 所述流动反应器分别通过所述第一和第二入口过氧化物，控制所述润滑油和有机过氧化物反应物的相对流速以及通过所述流动反应器的总体积流量，以保持有利于所述有机过氧化物和 所述润滑油，并且在包括约50℃至300℃的温度的转化条件下保持所述有机过氧化物和所述润滑油以及足以使所述润滑油和所述有机过氧化物基本上处于液相的压力。 令人惊讶地发现控制流动状态以有利于润滑油和有机过氧化物之间的扩散而不是对流混合，显着提高了粘度指数的改善。