公开(公告)号：US20170066979A1

公开(公告)日：2017-03-09

申请号：US14848917

申请日：2015-09-09

Applicant: Chevron U.S.A. Inc.

Inventor： Guan-Dao Lei ,  Subhasis Bhattacharya ,  Axel Brait

IPC: C10G67/16 ,  C10M101/00 ,  C10M177/00

CPC classification number: C10G67/16 ,  C10G53/06 ,  C10G67/00 ,  C10G67/0409 ,  C10G67/0418 ,  C10G67/0445 ,  C10G73/06 ,  C10G2300/1096 ,  C10G2400/08 ,  C10M101/00 ,  C10M177/00

Abstract: A process for heavy base oil production, comprising: a. performing an aromatic extraction of a first hydrocarbon feed to produce an aromatic extract, and a waxy raffinate; b. mixing the aromatic extract with a second hydrocarbon feed to make a mixed feed having greater than 2,000 wt ppm sulfur; c. feeding the mixed feed to a hydroprocessing unit to produce a heavy API Group II base oil having a kinematic viscosity at 70° C. from 22.6 to 100 mm2/s. An integrated refinery process unit for making heavy base oils, comprising: a. an aromatic extraction unit fluidly connected to a solvent dewaxing unit and a hydroprocessing unit; b. a first line from the aromatic extraction unit, that feeds an aromatic extract to a second hydrocarbon feed to make a mixed feed having greater than 2,000 wt ppm sulfur; and c. a connection that feeds the mixed feed to the hydroprocessing unit.

Abstract translation: 一种重质基油生产方法，包括：a。 执行第一烃进料的芳族萃取以产生芳族萃取物，和蜡状提余液; b。 将芳族提取物与第二烃进料混合以制备具有大于2,000重量ppm硫的混合进料; C。 将混合的进料加入加氢处理装置中以产生重的API II组基础油，其运动粘度在70℃为22.6至100mm 2 / s。 一种用于制造重质基础油的综合炼油工艺装置，包括：a。 芳烃提取单元，其流体连接到溶剂脱蜡单元和加氢处理单元; b。 来自芳族萃取单元的第一行，其将芳族萃取物进料到第二烃进料以制备具有大于2,000重量ppm硫的混合进料; 和c。 将混合进料送入加氢处理装置的连接。

公开(公告)号：US20110083995A1

公开(公告)日：2011-04-14

申请号：US12587709

申请日：2009-10-13

Applicant: James W. Gleeson ,  Eric B. Sirota ,  Charles L. Baker ,  Dennis A. Gaal ,  David Mentzer ,  John E. Gallagher, JR. ,  Min Chang ,  Norman G. Cathcart ,  Stephen A. Geibel ,  Mark F. Hurwitz ,  Tore H. Lindstrom ,  Michael B. Whitlock

Inventor： James W. Gleeson ,  Eric B. Sirota ,  Charles L. Baker ,  Dennis A. Gaal ,  David Mentzer ,  John E. Gallagher, JR. ,  Min Chang ,  Norman G. Cathcart ,  Stephen A. Geibel ,  Mark F. Hurwitz ,  Tore H. Lindstrom ,  Michael B. Whitlock

IPC: C10G73/32 ,  C10G73/02 ,  C10G73/04

CPC classification number: C10G73/06 ,  C10G73/025 ,  C10G2300/1062 ,  C10G2300/302 ,  C10G2300/802 ,  C10G2400/10

Abstract: The present invention is a process for removing waxy haze from and improving the filterability of base stocks including heavy mineral oil base stocks, gas-to-liquids (GTL) and hydrodewaxed or hydroisomerized waxy feed basestocks by filtering the waxy haze causing particles out of the base stock employing a filter characterized by a high surface area of pores accessible to the haze wax particles which have particles dimensions of no more than about 5 microns.

Abstract translation: 本发明是一种从重质矿物油基础油，气体 - 液体（GTL）和加氢脱蜡或加氢异构化的蜡质进料基础油中除去蜡质雾度并改善基础油料的过滤性的方法，通过过滤蜡状雾霾使颗粒从 使用过滤器，其特征在于具有不超过约5微米的颗粒尺寸的雾状蜡颗粒可接近的孔的高表面积。

公开(公告)号：US20070227944A1

公开(公告)日：2007-10-04

申请号：US11393477

申请日：2006-03-30

Applicant: Roger Campbell

Inventor： Roger Campbell

IPC: C10G73/06

CPC classification number: C10G73/06

Abstract: A system and a method for extracting wax from pulp fibers and/or paper products are provided. The system and method may implement a continuous extraction vessel that can have one or more extraction stages. A single or multi-staged continuous extractor would provide solvent flow which counters the cellulosic materials within the vessel so that the solvent becomes more concentrated with the dissolved wax. This will reduce the volume of solvent necessary to achieve the same extraction efficiency and reduce the energy necessary to remove the solvent from the wax. In another embodiment, the temperature of the solvent can be increased by operating the extractor under a pressure greater than atmospheric pressure.

Abstract translation: 提供了一种用于从纸浆纤维和/或纸制品中提取蜡的系统和方法。 该系统和方法可以实现可以具有一个或多个提取阶段的连续提取容器。 单级或多级连续萃取器将提供与容器内的纤维素材料相反的溶剂流，使得溶剂变得与溶解的蜡更浓缩。 这将减少实现相同萃取效率所需的溶剂体积并降低从蜡中除去溶剂所需的能量。 在另一个实施方案中，通过在大于大气压的压力下操作萃取器可以提高溶剂的温度。

公开(公告)号：US20050054775A1

公开(公告)日：2005-03-10

申请号：US10504685

申请日：2002-10-25

Applicant: Naoki Haga ,  Akiyuki Hiraide

Inventor： Naoki Haga ,  Akiyuki Hiraide

IPC: C10G73/12 ,  C10G73/06 ,  C08K5/07

CPC classification number: C10G73/06

Abstract: The present invention relates to dewaxing aids comprising the mixture of two or more polyalkyl(meth)acrylates having an exothermic heat initiation temperature within the specific range when chilled at 30° C./minute rate, to be added together with the wax-containing hydrocarbon oil to the dewaxing solvent. The dewaxing aid according to the present invention can be used in the solvent dewaxing method containing the stage in which the chilling rate during the chilling is 30° C./minute or higher, is effective for heavy type wax-containing hydrocarbon oils, and is chlorine-free.

Abstract translation: 本发明涉及脱蜡助剂，其包含两种或更多种（甲基）丙烯酸烷基酯的混合物，其具有在30℃/分钟速度下冷却的特定范围内的放热热引发温度，并与含蜡烃 油到脱蜡溶剂。 根据本发明的脱蜡助剂可以用于含有冷冻冷冻速度为30℃/分钟以上的阶段的溶剂脱蜡方法，对于重型含蜡烃油是有效的，并且是 无氯。

公开(公告)号：US6024862A

公开(公告)日：2000-02-15

申请号：US221064

申请日：1998-12-28

Applicant: Michael D. Ackerson ,  Seyed-Hamid Arabshahi ,  Robert E. Babcock

Inventor： Michael D. Ackerson ,  Seyed-Hamid Arabshahi ,  Robert E. Babcock

IPC: C10G73/02 ,  C10G73/06

CPC classification number: C10G73/025 ,  C10G73/06

Abstract: A process for dewaxing including the steps of mixing a waxy feedstock near its pour point with an ambient or below ambient temperature solvent essentially free of a selected cosolvent, to form a solvent/feedstock mixture, essentially free of a selected cosolvent, and subsequently adding the cosolvent to the solvent/feedstock mixture to cause instantaneous precipitation of wax on addition of cosolvent with the amount of wax precipitation being controlled by the quantity and temperature of cosolvent added. The cosolvent is essentially completely miscible with the solvent, but immiscible with the oil and wax. For example, alcohols (methanol, ethanol, propanol), ketones (ketene, acetone), amines, etc. The process of the present invention provides the advantages of lower solvent ratios (higher solvent recovery), higher filtration temperatures, "environmentally compatible" solvents, rapid filtration rates, and debottlenecking of existing dewaxing plants.

Abstract translation: 一种脱蜡方法，包括以下步骤：在其倾点附近将蜡质原料与基本上不含所选助溶剂的环境温度或低于环境温度的溶剂混合，形成基本上不含所选助溶剂的溶剂/原料混合物，随后将 共溶剂加入到溶剂/原料混合物中，引起蜡在加入共溶剂时的瞬间沉淀，蜡沉淀量由加入的助溶剂的量和温度控制。 共溶剂基本上与溶剂完全混溶，但与油和蜡不混溶。 例如，醇（甲醇，乙醇，丙醇），酮（乙烯酮，丙酮），胺等。本发明的方法提供了较低溶剂比（更高的溶剂回收），更高的过滤温度，“环境相容” 溶剂，快速过滤速率和现有脱蜡设备的脱瓶。

公开(公告)号：US5647971A

公开(公告)日：1997-07-15

申请号：US294706

申请日：1994-08-23

Applicant: Akira Kawamura ,  Susumu Suzuki ,  Masahumi Imamura

Inventor： Akira Kawamura ,  Susumu Suzuki ,  Masahumi Imamura

IPC: C10G73/22 ,  C10G73/06 ,  C10G73/34 ,  C10M101/00 ,  C10N70/00 ,  C10G73/00

CPC classification number: C10G73/06

Abstract: A method and apparatus for changing the solvent composition in a solvent recovery system of a dewaxing apparatus, depending on the type of stock oil, by introducing a part of dry solvent into a wet solvent tank to thereby increase or decrease a concentration of MEK in the wet solvent used as a primary solvent for initially mixing with the stock oil.

Abstract translation: 根据原料油的种类，通过将一部分干燥溶剂引入湿式溶剂槽中来改变脱蜡装置的溶剂回收系统中的溶剂组成的方法和装置，从而增加或减少在 用作初始与原油混合的主要溶剂的湿溶剂。

公开(公告)号：US5474668A

公开(公告)日：1995-12-12

申请号：US279801

申请日：1994-07-25

Applicant: Michael D. Ackerson ,  Seyed-Hamid Arabshahi ,  Robert E. Babcock

Inventor： Michael D. Ackerson ,  Seyed-Hamid Arabshahi ,  Robert E. Babcock

IPC: C10G73/02 ,  C10G73/06

CPC classification number: C10G73/06 ,  C10G73/025

Abstract: A process for dewaxing including the steps of mixing a waxy feedstock near its pour point with an ambient or below ambient temperature solvent essentially free of a selected cosolvent, to form a solvent/feedstock mixture, essentially free of a selected cosolvent, and subsequently adding the cosolvent to the solvent/feedstock mixture to cause instantaneous precipitation of wax on addition of cosolvent with the amount of wax precipitation being controlled by the quantity and temperature of cosolvent added. The cosolvent is essentially completely miscible with the solvent, but immiscible with the oil and wax. For example, alcohols (methanol, ethanol, propanol), ketones (ketene, acetone), amines, etc. The process of the present invention provides the advantages of lower solvent ratios (higher solvent recovery), higher filtration temperatures, "environmentally compatible" solvents, rapid filtration rates, and debottlenecking of existing dewaxing plants.

公开(公告)号：US4820400A

公开(公告)日：1989-04-11

申请号：US202601

申请日：1988-06-06

Applicant: Douglas G. Ryan ,  Donald B. Trust ,  Rudolph R. Savory

Inventor： Douglas G. Ryan ,  Donald B. Trust ,  Rudolph R. Savory

IPC: C10M101/02 ,  B01D33/09 ,  B01D37/00 ,  C10G21/14 ,  C10G31/06 ,  C10G31/09 ,  C10G32/02 ,  C10G73/02 ,  C10G73/06 ,  C10G73/30 ,  C10G73/32 ,  C10N20/00 ,  C10N70/00 ,  C10G33/02 ,  B03C5/00

CPC classification number: C10G73/32 ,  B01D33/09 ,  B01D37/00 ,  C10G73/025 ,  C10G73/06 ,  C10G73/30

Abstract: For removing haze from dewaxed hydrocarbon oil mixture boiling in the lubricating oil range which is hazy, the hazy oil mixture is filtered in the filtration stage (201) of a dewaxing plant which is concurrently filtering undewaxed hydrocarbon oil mixture boiling in the lubricating oil range. Prior to filtering, the hazy dewaxed oil mixture is subjected to pretreatment (in pretreatment stage 204) such as to promote removal of haze from the dewaxed oil mixture during filtering. This pretreatment is carried out independently of the undewaxed oil mixture and can involve dilution/chilling with an oil solvent (e.g. liquid propane) and/or introduction of free excess electric charge, for example by charge injection. As an alternative to the pretreatment, the temperature conditions under which filtration takes place may be low enough to promote wax crystallization. The filtration stage may comprise a rotary drum filter (213) in which the undewaxed oil mixture is introduced into the filter vat (10), whereas the pretreated dewaxed oil mixture is sprayed onto the wax cake formed on the rotary filter drum.

公开(公告)号：US4728413A

公开(公告)日：1988-03-01

申请号：US865426

申请日：1986-05-21

Applicant: Thomas E. Broadhurst

Inventor： Thomas E. Broadhurst

IPC: B01D37/00 ,  C10G31/00 ,  C10G73/06 ,  C10G73/32 ,  C10G73/40 ,  C10G43/08

CPC classification number: C10G73/06 ,  C10G73/32

Abstract: The filtration performance of a slurry containing crystallized wax, dewaxed oil and dewaxing solvent is improved by use of an agitator means which possesses a characteristic dimension which when divided by the average wax crystal diameter yields a dimensionless number of about 1,500 or less, preferably about 1,000 or less, more preferably about 500 or less, most preferably about 250 or less. Use of an agitator means which possesses a characteristic dimension yielding a dimensionless number in the range recited above causes a reduction in the size of the vortex generated as the agitator means passes through the slurry during chilling. As a consequence, more intimate contacting of the wax particles during chilling is promoted.The needed characteristic dimension of the agitator may be obtained in any number of equally acceptable ways. Single large agitator blades can be replaced by more numerous smaller blades; large blades can be perforated, notched, etc.Any alteration which causes the agitator characteristic dimension to be reduced so that when it is divided by the average cyrstal wax size the resulting dimensionless number is about 1,500 or less in an acceptable modification.

Abstract translation: 含有结晶蜡，脱蜡油和脱蜡溶剂的浆料的过滤性能通过使用具有特征尺寸的搅拌器装置得到改善，当除以平均蜡晶体直径产生约1,500或更小的无量纲数，优选约1,000 更优选约500或更小，最优选约250或更小。 使用具有在上述范围内产生无量纲数的特征尺寸的搅拌器装置导致在搅拌器装置在冷却期间通过浆料时产生的涡流的尺寸减小。 因此，促进了在冷却期间蜡颗粒的更紧密的接触。 可以以任何数量的同样可接受的方式获得搅拌器所需的特征尺寸。 单个大型搅拌器叶片可以由更多的更小的叶片代替; 大的叶片可以穿孔，切口等。使搅拌器特征尺寸减小的任何改变，使得当它被平均孔径蜡除以时，得到的无量纲数在可接受的修改中为约1,500或更小。

公开(公告)号：US4444648A

公开(公告)日：1984-04-24

申请号：US356092

申请日：1982-03-08

Applicant: Theodore H. West

Inventor： Theodore H. West

IPC: C10G21/16 ,  C10G73/06 ,  C10G73/12

CPC classification number: C10G21/16 ,  C10G73/06

Abstract: A process is disclosed for the solvent dewaxing of wax containing hydrocarbon oils, preferably waxy petroleum oils most preferably waxy lubricating or transformer oils. The process employs methyl tertiary butyl ether as the dewaxing solvent, either alone or in combination with other dewaxing solvents such as ketones, halogenated hydrocarbon anti-solvents, and mixtures thereof. The use of methyl tertiary butyl ether as a dewaxing solvent, or in combination with conventional dewaxing anti-solvents permits lower volumes of solvent to be employed in the dewaxing process while simultaneously producing an oil of lower wax content and lower dewaxed oil pour point at the same filter temperature as that commonly employed using conventional dewaxing solvents. Dewaxed oil yields for equivalent pour point are 3 to 4% higher with the MTBE system.

Abstract translation: 公开了一种用于含蜡烃油，优选蜡质石油油，最优选蜡状润滑剂或变压器油的溶剂脱蜡的方法。 该方法单独使用甲基叔丁基醚作为脱蜡溶剂，或与其它脱蜡溶剂如酮，卤代烃类抗溶剂及其混合物组合使用。 使用甲基叔丁基醚作为脱蜡溶剂，或与常规脱蜡抗溶剂组合使用可以在脱蜡过程中使用较少体积的溶剂，同时生产较低蜡含量的油和较低的脱蜡油倾点 与使用常规脱蜡溶剂通常使用的相同的过滤器温度。 相同倾点的脱蜡油产量与MTBE系统相比提高3至4％。