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    Process for separation of dewaxed lube oil into light and heavy products
    3.
    发明授权
    Process for separation of dewaxed lube oil into light and heavy products 有权
    将脱蜡润滑油分离成轻质和重质产品的方法

    公开(公告)号：US06413414B1

    公开(公告)日：2002-07-02

    申请号：US09565676

    申请日：2000-05-04

    申请人： Victor E. Arnold ,  Richard T. Cleveland

    发明人： Victor E. Arnold ,  Richard T. Cleveland

    IPC分类号： C10G7302

    CPC分类号： C10G31/06 ,  C10G7/003 ,  C10G2400/10

    摘要： Methods and apparatus to separate a light lube stock product and a heavy lube stock product from heavy dewaxed lube oils are described which maintain product specifications while utilizing conventional refinery equipment. The heavy dewaxed lube oil stream is first heated, such as in a spiral heat exchanger in the top of a vacuum stripper, with the heavy lube stock fraction, and/or with hot oil. Next, the heated heavy dewaxed lube oil stream is injected into the vacuum stripper, and fuel gas is injected at the bottom of the stripper as the stripping medium. A light lube stock fraction is removed from the upper portion of the stripper, and a heavy lube stock fraction is removed from the lower portion thereof. Optionally, the gas stripping medium is removed from the top of the stripper by a vacuum pump and used to fuel a hot oil exchanger to heat the oil which in turn is employed to heat the heavy dewaxed lube oil stream.

    摘要翻译： 描述了从重型脱蜡润滑油分离轻润滑油原料和重润滑油原料的方法和设备，其在使用常规炼油设备的同时保持产品规格。 首先将沉重的脱蜡润滑油料流加热，例如在真空汽提器顶部的螺旋式热交换器中，重润滑油原料馏分和/或热油。 接下来，将加热的高浓度脱蜡润滑油料流注入真空汽提器中，并将燃料气体作为汽提介质注入汽提塔底部。 从汽提器的上部除去轻质润滑油原料馏分，从其下部除去重质润滑油原料馏分。 任选地，通过真空泵将气体剥离介质从汽提器的顶部除去，并用于燃料热油交换器以加热油，其又被用于加热重的脱蜡润滑油流。

    Production of high viscosity index lubricants
    5.
    发明授权
    Production of high viscosity index lubricants 有权
    生产高粘度指数润滑剂

    公开(公告)号：US06231749B1

    公开(公告)日：2001-05-15

    申请号：US09439665

    申请日：1999-11-15

    申请人： Thomas F. Degnan ,  Robert T. Hanlon ,  Grant G. Karsner ,  Dominick N. Mazzone

    发明人： Thomas F. Degnan ,  Robert T. Hanlon ,  Grant G. Karsner ,  Dominick N. Mazzone

    IPC分类号： C10G7302

    CPC分类号： C10G65/12 ,  C10G2400/10

    摘要： Petroleum wax feeds are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed which exhibits branchingis initially subjected to hydrocracking under mild conditions with a conversion to non-lube range products of no more than about 30 weight percent of the feed. The hydrocracking is carried out at a hydrogen pressure of at least 1000 psig (7000 kPa) using an amorphous catalyst which preferentially removes the aromatic components present in the initial feed. The hydrocracked effluent is then subjected to hydroisomerization in a second step using a low acidity zeolite beta catalyst which effects a preferential isomerization on the paraffin components to less waxy, high VI isoparaffins. The second stage may be operated at high pressure by cascading the first stage product into the second stage or at a lower pressure, typically from 200 to 1000 psig. The second stage catalyst is preferably a noble metal containing zeolite beta catalyst which contains boron as a framework component of the zeolite to give a low alpha value, typically below 10 while maintaining an isomerizaiton selectiveity of no less than 48%. The second stage is carried out at relatively low temperature, typically from 600° to 650° F. with a 650° F.+ conversion in the range of 10 to 20 weight percent of the second stage feed but with high selectivity for isomerization of the paraffins. A final dewaxing step to target pour point may be used with relatively low loss, typically no more than 15 weight percent, during this dewaxing. The final products typically have VI values in excess of 140 and usually in the range of 143 to 147 and are characterized by exceptional stability.

    摘要翻译： 石油蜡进料通过两步加氢裂化 - 加氢异构化方法转化为高粘度指数润滑剂，其中显示支化的蜡进料在温和条件下最初进行加氢裂化，转化为不超过约30重量％的非润滑范围的产物 百分比的饲料。 使用优先除去初始进料中存在的芳香族成分的无定形催化剂，在至少1000psig（7000kPa）的氢气压力下进行加氢裂化。 然后使用低酸性沸石β催化剂在第二步骤中对加氢裂化的流出物进行加氢异构化，该催化剂对链烷烃组分进行优先异构化，以减少蜡状，高VI异链烷烃。 第二阶段可以通过将第一阶段产品级联到第二阶段或通常为200至1000psig的较低压力下在高压下操作。 第二级催化剂优选是含有沸石β催化剂的贵金属，其含有硼作为沸石的骨架组分，以产生低α值，通常低于10，同时维持不小于48％的异构选择性。 第二阶段在相对较低的温度下进行，通常为600°F至650°F，650°F +转化率在第二级进料的10至20％（重量）范围内，但对于 石蜡 在该脱蜡过程中，目标倾点的最终脱蜡步骤可以使用相当低的损失，通常不超过15重量％。 最终产品通常具有超过140的VI值，通常在143至147的范围内，并且具有出色的稳定性。

    On-line determination of wax crystallization temperature of waxy solvent stream
    6.
    发明授权
    On-line determination of wax crystallization temperature of waxy solvent stream 失效
    蜡状溶剂流的蜡结晶温度的在线测定

    公开(公告)号：US06827842B2

    公开(公告)日：2004-12-07

    申请号：US10000188

    申请日：2001-10-19

    申请人： Brent England Beasley ,  Randall Stephen Lachine

    发明人： Brent England Beasley ,  Randall Stephen Lachine

    IPC分类号： C10G7302

    CPC分类号： G01N33/2811 ,  G01N21/55 ,  G01N25/147

    摘要： A laser beam reflected by wax crystals is used in determining the wax crystallization temperature of a hot dewaxing solvent upstream of solvent chillers. This is automatically achieved by an on-line method from a remote control point, in which a slipstream of solvent is passed through an attached solvent loop into a sample chamber in the loop, without being exposed to ambient conditions. As the sample is cooled, the beam reflections are detected and indicate the wax to crystallization temperature. Corrective measures can then be taken to prevent fouling of the chillers, if need be.

    摘要翻译： 由蜡晶体反射的激光束用于测定溶剂冷却器上游的热脱蜡溶剂的蜡结晶温度。 这通过远程控制点的在线方法自动实现，其中溶剂的流动流通过附着的溶剂回路进入环路中的样品室，而不暴露于环境条件。 当样品冷却时，检测到光束反射，并将蜡显示为结晶温度。 如果需要，可采取纠正措施来防止冷却器结垢。

    Integrated lubricant upgrading process
    8.
    发明授权
    Integrated lubricant upgrading process 有权
    综合润滑油升级过程

    公开(公告)号：US06569313B1

    公开(公告)日：2003-05-27

    申请号：US09711604

    申请日：2000-11-13

    申请人： Michael B. Carroll ,  Gary P. Schleicher ,  Joseph P. Boyle

    发明人： Michael B. Carroll ,  Gary P. Schleicher ,  Joseph P. Boyle

    IPC分类号： C10G7302

    CPC分类号： C10G65/12 ,  C10G2400/10

    摘要： A process for upgrading oil feedstock wherein the feedstock is hydrotreated, hydrocracked, and flashed and/or distilled. The bottoms are then vacuum distilled to adjust viscosity and volatility. The refined feed is then extracted, dewaxed, and cascaded to a hydrofinishing step, where it is contacted with a catalyst having a metal hydrogenation function in order to produce lubricant products.

    摘要翻译： 一种用于升级油原料的方法，其中原料被加氢处理，加氢裂化，闪蒸和/或蒸馏。 然后将塔底物真空蒸馏以调节粘度和挥发性。 然后将精制的进料提取，脱蜡并级联到加氢精制步骤，在其中与具有金属氢化功能的催化剂接触以产生润滑剂产品。

    Catalytic dewaxing process for producing lubricating oils
    9.
    发明授权
    Catalytic dewaxing process for producing lubricating oils 失效
    用于生产润滑油的催化脱蜡方法

    公开(公告)号：US06287454B1

    公开(公告)日：2001-09-11

    申请号：US08291320

    申请日：1994-08-16

    申请人： Thomas R. Forbus, Jr. ,  Chwan P. Kyan

    发明人： Thomas R. Forbus, Jr. ,  Chwan P. Kyan

    IPC分类号： C10G7302

    CPC分类号： C10G45/64 ,  C10G2400/10

    摘要： Lubricant oils of low pour point and improved oxidation stability are produced by catalytically dewaxing a lube feedstock over a zeolite dewaxing catalyst such as ZSM-5 in the hydrogen or decationized form. The use of these catalysts enables products of excellent oxidative stability to be obtained and reduces the catalyst aging rate in the first and subsequent dewaxing cycles to values below 5° F./day. The duration of the dewaxing cycles may be extended, particularly in the second and subsequent cycles after hydrogen reactivation.

    摘要翻译： 通过在沸石脱蜡催化剂如ZSM-5上以氢气或分解形式催化脱蜡润滑剂原料来制备低倾点和改善的氧化稳定性的润滑油。 使用这些催化剂可以获得优异的氧化稳定性的产物，并将第一次和随后的脱蜡循环中的催化剂老化速率降低到低于5°F /天的值。 脱蜡循环的持续时间可以延长，特别是在氢再活化后的第二个和随后的循环中。