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公开(公告)号：US4919788A
公开(公告)日：1990-04-24
申请号：US260857
申请日：1988-10-21
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。
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公开(公告)号：US4971766A
公开(公告)日：1990-11-20
申请号：US437064
申请日：1989-11-16
申请人： Nai Y. Chen , Billy K. Huh , Thomas E. Degnan
发明人： Nai Y. Chen , Billy K. Huh , Thomas E. Degnan
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。
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公开(公告)号：US4877581A
公开(公告)日：1989-10-31
申请号：US239257
申请日：1988-09-01
申请人： Nai Y. Chen , Dennis E. Walsh
发明人： Nai Y. Chen , Dennis E. Walsh
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。
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14.发明授权Aromatization with catalyst comprising noble-metal containing titanosilicate having the structure of zeolite beta 失效用含有β沸石结构的含有钛酸硅酸的贵金属的催化剂进行芳构化
公开(公告)号：US4827068A
公开(公告)日：1989-05-02
申请号：US138974
申请日：1987-12-29
申请人： Nai Y. Chen , Sharon B. McCullen
发明人： Nai Y. Chen , Sharon B. McCullen
CPC分类号： C07C5/417 , B01J29/89 , C07C1/20 , C07C2529/89 , Y02P30/42
摘要： Aromatization of non-aromatics is carried out by contacting with a titanosilicate having the structure of zeolite beta which contains noble metal.
摘要翻译： 通过与含有贵金属的β沸石结构的钛硅酸盐接触来进行非芳族化合物的芳构化。
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公开(公告)号：US4789656A
公开(公告)日：1988-12-06
申请号：US070170
申请日：1987-07-02
申请人： Nai Y. Chen , Sharon B. McCullen
发明人： Nai Y. Chen , Sharon B. McCullen
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。
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公开(公告)号：US4756822A
公开(公告)日：1988-07-12
申请号：US31807
申请日：1987-03-30
申请人： Nai Y. Chen , Tracy J. Huang
发明人： Nai Y. Chen , Tracy J. Huang
摘要： This invention provides a novel hydrocracking catalyst composition that contains Zeolite Beta having a framework boron content, a solid source of alumina, and a hydrogenation component. It further provides a low-pressure hydrocracking process that uses such composition.
摘要翻译： 本发明提供一种新型加氢裂化催化剂组合物，其包含具有骨架硼含量的沸石β，氧化铝的固体源和氢化组分。 它还提供了使用这种组合物的低压加氢裂化方法。
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公开(公告)号：US4749467A
公开(公告)日：1988-06-07
申请号：US054115
申请日：1987-05-22
申请人： Nai Y. Chen , Bruce P. Pelrine
发明人： Nai Y. Chen , Bruce P. Pelrine
CPC分类号： C10G45/64
摘要： An improved method which provides for an extended cycle length in catalytic lube dewaxing of residual lube oil feedstocks and easier catalyst regeneration. The method may incorporate catalytically dewaxing a feedstock in a fixed bed reactor with or without product recycle, or a series of reactors with interreactor separation of vapors from liquids. Improved performance is achieved by operating the reactor at a temperature between about 490.degree. and about 620.degree. F., employing a high activity crystalline zeolite catalyst having an alpha value between about 50 and about 900 based on the zeolite and a space velocity sufficiently low to produce a dewaxed effluent of desired pour point and to maintain an average catalyst aging rate of less than about 2.degree. F. per day. This relatively low temperature operation allows catalyst performance to be restored by simple hydrogen reactivation.
摘要翻译： 一种改进的方法，其提供了在残余润滑油原料的催化润滑油脱蜡中延长的循环长度并且更容易的催化剂再生。 该方法可以将原料催化脱蜡在具有或不具有产物再循环的固定床反应器中，或者一系列具有蒸发器与液体的反应器分离的反应器。 通过使用基于沸石的α值在约50至约900之间的高活性结晶沸石催化剂，在约490℃至约620℃的温度下操作反应器来实现改进的性能，空间速度足够低至 产生所需倾点的脱蜡流出物，并保持每天平均催化剂老化速率小于约2°F。 这种相对较低的温度操作允许通过简单的氢再活化来恢复催化剂性能。
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公开(公告)号：US4711710A
公开(公告)日：1987-12-08
申请号：US938214
申请日：1986-12-05
CPC分类号： C10G45/64 , B01J29/46 , B01J2229/26 , B01J2229/42
摘要： There is disclosed an improved dewaxing process which will operate for longer periods of time involving contacting a feedstock having a 50 volume percent boiling point greater than 900.degree. F. with a crystalline aluminosilicate zeolite having a Constraint Index of from 1 to 12 and a silica-to-alumina ratio of at least 12. The crystalline aluminosilicate zeolite is composited with an inorganic oxide, such as alumina. The composite also containing a hydrogenation metal and the catalyst composite has a maximum diffusion distance of less than 0.025 inch.
摘要翻译： 公开了一种改进的脱蜡方法，该方法操作更长的时间段，包括使具有大于900°F的50体积％沸点的原料与约1至12的约束指数的结晶硅铝酸盐沸石接触， 氧化铝比至少为12.结晶硅铝酸盐沸石与无机氧化物如氧化铝复合。 还含有氢化金属和催化剂复合材料的复合材料具有小于0.025英寸的最大扩散距离。
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19.发明授权
公开(公告)号：US4443325A
公开(公告)日：1984-04-17
申请号：US452482
申请日：1982-12-23
申请人： Nai Y. Chen , Lillian A. Rankel
发明人： Nai Y. Chen , Lillian A. Rankel
摘要： A combined process for treating heavy hydrocarbon feedstocks, such as resids that minimizes coke production and maximizes naphtha production, comprising the steps of thermally treating the feedstocks, in the absence of an added catalyst and either with or without hydrogen and steam, at a temperature of at least about 750.degree. F. (399.degree. C.) and under a pressure greater than about 400 psig to create significant chemical transformations without causing phase separation and consequent formation of sludge or a coke deposit; topping the thermally treated product to produce a distillate fraction and a bottoms fraction; coking the bottom fraction to produce gas, liquid products, and coke; and finally catalytically cracking the combined distillate fraction and liquid products to recover gas, gasoline, and light distillate products.
摘要翻译： 用于处理重烃原料的组合方法，例如使焦炭生产最小化并使石脑油生产最大化的残渣，包括以下步骤：在不存在加入的催化剂的情况下热处理原料，以及在有或没有氢气和蒸汽的情况下，在 至少约750°F（399℃），并且在大于约400psig的压力下产生显着的化学转化，而不引起相分离，从而形成污泥或焦炭沉积物; 顶部热处理产物以产生馏出物馏分和塔底馏分; 焦化底部馏分产生气体，液体产物和焦炭; 并最终催化裂化组合的馏出物馏分和液体产物以回收气体，汽油和轻馏分产物。
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公开(公告)号：US4396538A
公开(公告)日：1983-08-02
申请号：US187667
申请日：1980-09-16
申请人： Nai Y. Chen , David S. Shihabi
发明人： Nai Y. Chen , David S. Shihabi
CPC分类号： B01J35/0006 , B01J23/85 , B01J29/40 , B01J29/405 , C10G11/05 , C10G47/16 , B01J2229/26 , B01J2229/42
摘要： Conversion of hydrocarbons is conducted over low acidity zeolites such as the sodium form of zeolite ZSM-5 to yield products like those produced by hydrocracking but with substantially decreased proportion of light hydrocarbons having one to four carbon atoms. (Sulfiding of sodium zeolites activates such sodium zeolites for the present purpose.) The hydrocarbon conversion is conducted with mixed phase charge (Trickle mode) under hydrogen pressure or with liquid phase charge in a liquid-full reactor.A catalyst composition comprising a metallic hydrogenation catalyst on a refractory support and an alkali metal crystalline zeolite.
摘要翻译： 碳氢化合物的转化是通过低沸点沸石如沸石ZSM-5的沸石进行的，以产生类似于通过加氢裂化产生的产物，但具有1-4个碳原子的轻质烃的比例实质上降低。 （为了本目的，钠沸石的硫化活化这种钠沸石。）在氢气压力下或在液体充满的反应器中用液相电荷在混合相电荷（涓流模式）下进行烃转化。 一种催化剂组合物，其包含耐火载体上的金属氢化催化剂和碱金属结晶沸石。
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