公开(公告)号：US5181998A

公开(公告)日：1993-01-26

申请号：US457603

申请日：1989-12-27

申请人： William J. Murphy ,  David H. Shaw

发明人： William J. Murphy ,  David H. Shaw

IPC分类号： B01J19/08 ,  B01J12/00 ,  B01J19/12 ,  C07C5/11 ,  C07C13/48 ,  C10G15/08 ,  C10G32/00 ,  C10G35/16 ,  C10G45/02 ,  C10G45/24 ,  C10G49/00

CPC分类号： C10G32/00 ,  B01J12/002 ,  B01J19/126 ,  C10G15/08 ,  C10G45/24 ,  Y10S585/953

摘要： Low value hydrocarbons can be upgraded by contact with the products formed during irradiation of a hydrogen donor using microwave energy in the presence of at least one plasma initiator.

公开(公告)号：US4522710A

公开(公告)日：1985-06-11

申请号：US559736

申请日：1983-12-09

申请人： Biddanda U. Achia ,  David H. Shaw ,  James D. Bushnell

发明人： Biddanda U. Achia ,  David H. Shaw ,  James D. Bushnell

IPC分类号： C10G21/00 ,  C10C3/06 ,  C10C3/08

CPC分类号： C10G21/003

摘要： A method for increasing the production of deasphalted oil is described. The method comprises passing a hydrocarbon feedstock into a first distillation zone wherein the feedstock is separated into a first distillate and a first residuum. First residuum is passed to a second distillation zone wherein the fraction is separated into a second distillate and a second residuum. Second distillate and residuum are passed to a deasphalting zone and contacted with a solvent to produce a deasphalted oil. This method may produce increased quantities of acceptable quality deasphalted oil where the deasphalting zone is rate-limiting.

摘要翻译： 描述了用于增加脱沥青油的生产的方法。 该方法包括使烃原料进入第一蒸馏区，其中原料被分离成第一馏出物和第一残渣。 将第一残渣送入第二蒸馏区，其中将馏分分离成第二馏出物和第二残渣。 第二馏出物和残渣通入脱沥青区并与溶剂接触以产生脱沥青油。 该方法可以产生更多量的可接受质量的脱沥青油，其中脱沥青区是速率限制的。

公开(公告)号：US4368112A

公开(公告)日：1983-01-11

申请号：US263115

申请日：1981-05-13

申请人： John A. Thompson ,  David H. Shaw ,  David A. Gudelis

发明人： John A. Thompson ,  David H. Shaw ,  David A. Gudelis

IPC分类号： B01D67/00 ,  B01D71/10 ,  C10G73/02 ,  C10G73/08

CPC分类号： B01D67/0088 ,  B01D61/025 ,  B01D71/10 ,  C10G73/025

摘要： A warm-up deoiling process for lube oil slack wax wherein cold slack wax from a solvent dewaxing operation is warmed up and mixed with solvent to dissolve foots oil contained therein and passed to a rotary drum filter to recover solid wax and a filtrate comprising a solution of foots oil and solvent wherein said filtrate is contacted with one side of a semi-permeable membrane made from regenerated cellulose which selectivity permeates at least a portion of solvent through said membrane and recycling the permeated solvent directly back into the warm-up deoiling operation as part of the solvent mixed with the slack wax.

摘要翻译： 用于润滑油松弛蜡的预热脱油方法，其中来自溶剂脱蜡操作的冷松散蜡被加热并与溶剂混合以溶解其中所含的脚油，并且通过到旋转鼓过滤器以回收固体蜡和包含溶液的滤液 的脚油和溶剂，其中所述滤液与由再生纤维素制成的半透膜的一侧接触，其选择性通过所述膜渗透至少一部分溶剂并将渗透的溶剂直接回到预热脱油操作中，作为 部分溶剂与松散蜡混合。

公开(公告)号：US4514280A

公开(公告)日：1985-04-30

申请号：US963577

申请日：1978-11-24

申请人： David H. Shaw ,  Ralph R. Hall

发明人： David H. Shaw ,  Ralph R. Hall

IPC分类号： C10G73/06

CPC分类号： C10G73/06

摘要： An improved process for the solvent dewaxing of petroleum oil stocks. Wax-containing oil is chilled in an elongated chilling zone by introducing cold dewaxing solvent into said zone, at a plurality of points along same, said chilling zone containing or having associated with it a plurality of static means for mixing the solvent and wax-containing oil under conditions of plug flow radial mixing, thereby avoiding shock chilling without the need for the intense agitation and/or dynamic agitators normally required for such processes.

摘要翻译： 改进石油油溶剂脱蜡工艺。 含蜡油通过将冷脱蜡溶剂引入所述​​区域而冷却在细长的冷却区域中，在多个点处，所述冷冻区域包含或与其相关联的多个用于混合溶剂和含蜡的静电装置 油在塞流径向混合的条件下，从而避免冲击冷却，而不需要通常对这些方法所需的强烈搅拌和/或动态搅拌器。

公开(公告)号：US4013542A

公开(公告)日：1977-03-22

申请号：US516625

申请日：1974-10-21

申请人： David A. Gudelis ,  David H. Shaw

发明人： David A. Gudelis ,  David H. Shaw

IPC分类号： C10G73/06 ,  C10G73/32 ,  C10G43/08

CPC分类号： C10G73/32 ,  C10G73/06

摘要： A dewaxing process is described wherein a waxy petroleum oil stock such as residual or a broadcut feedstock, characterized by containing at least 10% of residual material boiling above about 1000.degree. F., is mixed with at least about 0.3 volumes of a dewaxing solvent per volume of waxy oil stock, thereby depressing the cloud point of same.In one embodiment of the invention, the resultant mixture is introduced into a cooling zone, at a temperature above the depressed cloud point of the oil. Precooled dewaxing solvent is incrementally added to the cooling zone which is divided into a plurality of stages with agitation means present in each of the stages. The resultant solvent-oil mixture is cooled and agitated as it passes through the cooling zone, thereby reducing the temperature of the oil to below its depressed cloud point and precipitating at least a portion of the wax therefrom. An oil stock of diminished wax content is thereafter recovered.In a second embodiment of the invention, the waxy oil stock is introduced into the cooling zone in the absence of solvent at a temperature above the cloud point of the oil. Precooled dewaxing solvent is introduced incrementally into the initial stages of the cooling zone, coming into contact with the waxy oil and depressing its cloud point. The oil is gradually cooled to a temperature no less than the depressed cloud point of the oil whereupon additional precooled dewaxing solvent is added to the oil in the remaining stages of the cooling zone, thereby gradually cooling the oil to a temperature below the depressed cloud point and precipitating at least a portion of the wax therefrom.

摘要翻译： 描述了一种脱蜡方法，其中将含有至少10％沸点高于约1000°F的残余物质的蜡状石油原料如残渣或粗切剂原料与至少约0.3体积的脱蜡溶剂混合， 蜡状油料的体积，从而使浊点相同。

公开(公告)号：US4203824A

公开(公告)日：1980-05-20

申请号：US972230

申请日：1978-12-22

申请人： Biddanda U. Achia ,  David H. Shaw

发明人： Biddanda U. Achia ,  David H. Shaw

IPC分类号： C10G73/16 ,  C10G73/04 ,  C10G43/06 ,  C10G43/08

CPC分类号： C10G73/04

摘要： Polyvinylpyrrolidone having a number average molecular weight ranging from about 150,000 to 400,000 has been found to be an effective dewaxing aid for bright stock in ketone dewaxing processes. Using as little as 100 ppm based on the waxy oil can result in almost a 50% increase in the filter rate of the dewaxed oils from the wax.

摘要翻译： 已经发现数均分子量为约150,000至400,000的聚乙烯吡咯烷酮是用于酮脱蜡方法中光亮原料的有效脱蜡助剂。 基于蜡油使用少至100ppm可以使来自蜡的脱蜡油的过滤速率几乎增加50％。

公开(公告)号：US4145275A

公开(公告)日：1979-03-20

申请号：US813174

申请日：1977-07-05

申请人： Ralph R. Hall ,  David H. Shaw

发明人： Ralph R. Hall ,  David H. Shaw

IPC分类号： C10G73/32 ,  C10G73/02 ,  C10G73/06 ,  C10G43/08

CPC分类号： C10G73/06

摘要： An improved dilution chilling dewaxing process for waxy petroleum oils wherein the dewaxed oil yield is increased and the solvent recovery requirements are decreased by recycling solvent-rich wash filtrate from the first stage wax filters back into the dilution chilling dewaxing zone.