Lubricant production process
    3.
    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

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

    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。

    Nitrogen resistant paraffin hydroisomerization catalysts
    4.
    发明授权
    Nitrogen resistant paraffin hydroisomerization catalysts 失效
    耐氮石蜡加氢异构化催化剂

    公开(公告)号:US4814543A

    公开(公告)日:1989-03-21

    申请号:US138749

    申请日:1987-12-28

    摘要: The present invention includes a process and catalyst composition for paraffinic isomerization of a hydrocarbon feedstock which has a paraffin content having no more than 20 carbon atoms per molecule. The feedstock is contacted with a crystalline aluminosilicate zeolite catalyst having pore openings defined by: (1) a ratio of sorption of n-hexane to o-xylene, on a volume percent basis, of greater than about 3, which sorption is determined at a P/P.sub.o of 0.1 and at a temperature of 50.degree. C. for n-hexane and 80.degree. C. for o-xylene and (2) by the ability of selectively cracking 3-methylpentane (3MP) in preference to the doubly branched 2,3-dimethylbutane (DMB) at 1000.degree. F. and 1 atmosphere pressure from a 1/1/1 weight ratio mixture of n-hexane/3-methyl-pentane/2,3-dimethylbutane, with the ratio of rate constants k.sub.3MP/ k.sub.DMB determined at a temperature of 1000.degree. F. being in excess of about 2, e.g., ZSM-22, ZSM-23, AXM-35 and mixtures thereof, in combination with a Group VIII metal, and having a zeolite SiO.sub.2 /Al.sub.2 O.sub.3 ratio of at least about 20:1 at a temperature and pressure suitable for isomerization.

    摘要翻译: 本发明包括用于烃原料的链烷烃异构化的方法和催化剂组合物,其具有每分子具有不超过20个碳原子的链烷烃含量。 原料与具有孔开口的结晶铝硅酸盐沸石催化剂接触,所述沸石催化剂的定义如下:(1)正丁烷与邻二甲苯的吸附比例,以体积百分数计,大于约3,该吸附在 P / Po为0.1,温度为50℃,正己烷和80℃为邻二甲苯,(2)选择性裂解3-甲基戊烷(3MP)优于双支链2 ,三甲基丁烷(DMB)在1000°F和1大气压下,由正己烷/ 3-甲基戊烷/ 2,3-二甲基丁烷的1/1/1重量比混合物与速率常数比例k3MP / kDMB在1000°F的温度下测定为超过约2,例如ZSM-22,ZSM-23,AXM-35及其混合物,与VIII族金属组合,并具有SiO 2 / Al 2 O 3沸石 在适于异构化的温度和压力下至少约20:1的比例。

    Process for producing jet fuel with ZSM-22 containing catalist
    5.
    发明授权
    Process for producing jet fuel with ZSM-22 containing catalist 失效
    用含有催化剂的ZSM-22生产喷气燃料的方法

    公开(公告)号:US4717465A

    公开(公告)日:1988-01-05

    申请号:US915935

    申请日:1986-10-06

    摘要: A novel process is disclosed for the production of high boiling jet fuels which comprises contacting a chargestock with an end boiling point of about 750.degree. F. with ZSM-22 under carefully controlled conditions of temperature and pressure and blending the 330.degree. F. plus fraction with a conventional jet fuel in order to obtain a product having acceptable jet fuel properties and having a high boiling range.

    摘要翻译: 公开了一种用于生产高沸点喷气燃料的新方法,其包括在精心控制的温度和压力条件下将具有约750°F的终沸点的电荷料与ZSM-22接触,并将330°F加级分 使用常规的喷气燃料,以获得具有可接受的喷气燃料性能并具有高沸点范围的产品。

    Apparatus for FCC process with catalyst separation
    7.
    发明授权
    Apparatus for FCC process with catalyst separation 失效
    FCC催化分离装置

    公开(公告)号:US4971766A

    公开(公告)日:1990-11-20

    申请号:US437064

    申请日:1989-11-16

    IPC分类号: C10G11/18

    CPC分类号: C10G11/18

    摘要: An FCC or fluidized catalytic cracking process and apparatus for converting heavy metals laden crudes is disclosed. The heavy feed, conventional catalyst and an additive or vanadium getter contact the feed in a riser reactor. The additive is segregated from conventional FCC catalyst upstream of the conventional FCC regenerator. An elutriating, upflow riser reactor may be used with a coarse, rapidly settling getter. A fine, slowly settling getter may be used, with getter segregation achieved by using an elutriating cyclone on the riser outlet, an elutriating catalyst stripper, a sieve, or the like. The spent getter may be used once through, regenerated in a separate getter regenerator, or used as a source of fuel. Alumina and sponge coke are preferred getters.

    摘要翻译: 公开了一种FCC或流化催化裂化方法和用于转化重金属负载原油的装置。 重料,常规催化剂和添加剂或钒吸附剂在提升管反应器中接触进料。 该添加剂与常规FCC再生器上游的常规FCC催化剂分离。 淘汰式上升式提升管式反应器可与粗,快速沉降的吸气剂一起使用。 可以使用细的缓慢沉降的吸气剂,通过在提升管出口,淘洗催化剂汽提器,筛子等上使用淘洗旋风来实现吸气剂分离。 废吸气剂可以一次使用,在单独的吸气剂再生器中再生,或用作燃料来源。 氧化铝和海绵焦炭是优选的吸气剂。

    Catalyst for dewaxing hydrocarbon feedstock
    8.
    发明授权
    Catalyst for dewaxing hydrocarbon feedstock 失效
    用于脱蜡烃原料的催化剂

    公开(公告)号:US4877581A

    公开(公告)日:1989-10-31

    申请号:US239257

    申请日:1988-09-01

    IPC分类号: B01J29/44 B01J29/74 C10G45/64

    CPC分类号: C10G45/64 B01J29/44

    摘要: A paraffin conversion process for hydroisomerizing a nitrogen and wax-containing hydrocarbon feedstock comprising contacting the feedstock with a catalyst including a ZSM-11 zeolite characterized by an alpha value from about 10 to 50, in combination with a Group VIII metal hydrogenation-dehydrogenation component of platinum or palladium at a temperature of about 400.degree. F. to about 850.degree. F. and at a pressure of from about 200 to about 2000 psig.

    摘要翻译: 一种用于使含氮和含蜡的烃原料加氢异构化的链烷烃转化方法,包括使原料与包含Z值为约10至50的α值的ZSM-11沸石的催化剂结合,与第VIII族金属加氢脱氢组分 铂或钯,温度为约400°F至约850°F,压力为约200至约2000psig。

    Crystalline silicate zeolite beta of improved stability
    10.
    发明授权
    Crystalline silicate zeolite beta of improved stability 失效
    结晶硅酸盐沸石β具有改善的稳定性

    公开(公告)号:US4789656A

    公开(公告)日:1988-12-06

    申请号:US070170

    申请日:1987-07-02

    IPC分类号: B01J29/74 C10G45/64 B01J29/32

    CPC分类号: C10G45/64 B01J29/7415

    摘要: A process is described for preparing a binder-free Zeolite Beta containing catalyst which has a highly dispersed noble metal incorporated into the framework. The process comprises steaming Zeolite Beta, followed by noble metal incorporation and calcination. The present invention is also directed to an improved calcination process.

    摘要翻译: 描述了一种制备不含无粘结剂的含沸石沸石的催化剂的方法,该催化剂具有掺入框架中的高度分散的贵金属。 该方法包括蒸煮沸石β,然后进行贵金属掺入和煅烧。 本发明还涉及一种改进的煅烧方法。