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公开(公告)号：US4115244A
公开(公告)日：1978-09-19
申请号：US813144
申请日：1977-07-05
CPC分类号： C10G73/32
摘要： A process for dewaxing a waxy petroleum distillate charge stock, wherein a mixture of waxy oil and solvent, heated for dissolving all solid wax therein, is cooled to a first temperature about 40.degree.-50.degree. F (22.degree. to 28.degree. C) above a selected separation temperature, and is held at such first temperature for a period of 1-2 minutes for equilibrating wax crystallization, wherein said oil-solvent mixture, at said first temperature, is cooled to a second temperature about 15.degree.14 20.degree. F (8.degree.-11.degree. C) above said separation temperature and is held at said second temperature for 1-2 minutes for equilibration of wax crystallization, wherein said oil-solvent mixture, at said second temperature, is cooled to said separation temperature, and wherein solid wax is separated from oil-solvent mixture at said separation temperature.
摘要翻译： 将蜡石油馏出物原料脱蜡的方法，其中加热用于溶解所有固体蜡的蜡质油和溶剂的混合物冷却至高于约40°-50°F（22-28℃）的第一温度 选择的分离温度，并且在该第一温度下保持1-2分钟以平衡蜡结晶，其中所述油溶剂混合物在所述第一温度下被冷却至约15°14°F的第二温度 （8°-11℃）高于所述分离温度并保持在所述第二温度1-2分钟以使蜡结晶化，其中所述油溶剂混合物在所述第二温度下被冷却至所述分离温度，和 其中固体蜡在所述分离温度下与油溶剂混合物分离。
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公开(公告)号：US4115243A
公开(公告)日：1978-09-19
申请号：US813143
申请日：1977-07-05
CPC分类号： C10G73/32
摘要： A process for dewaxing heavy distillate and residual petroleum oil stocks wherein a waxy oil stock, prediluted with 1-2.5 volumes dewaxing solvent, is cooled to about the depressed cloud point, wherein the cooled, prediluted waxy oil stock is treated with dewaxing solvent, in increments of 0.3-1.5 volumes each to a total dilution of 3.5 to 4 volumes solvent, under conditions of good mixing and cooling at about 1.degree.-8.degree. F/min, to a desired separation temperature for precipitating wax crystals and producing a dewaxed oil.
摘要翻译： 将重质馏出物和残余石油油原料脱蜡的方法，其中将预先稀释有1-2.5体积脱蜡溶剂的蜡状油原料冷却至约凹陷的浊点，其中将冷却的预稀释的蜡状油原料用脱蜡溶剂处理， 在约1〜8°F / min的良好混合和冷却条件下，以3.5〜4体积的溶剂的总稀释量，增加0.3-1.5体积，达到所需的分离温度，用于沉淀蜡晶体并生产脱蜡油 。
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公开(公告)号：US4115242A
公开(公告)日：1978-09-19
申请号：US813142
申请日：1977-07-05
CPC分类号： C10G73/32
摘要： A process wherein a light waxy petroleum distillate stock, having a viscosity less than about 200 SUS at 100.degree. F, is heated for melting any wax therein, wherein said heated waxy stock is incrementally mixed with a flowing stream of dewaxing solvent, having a temperature in the range of 40.degree.-80.degree. F, for forming an oil/solvent mixture at a temperature 5.degree.-10.degree. F below the depressed cloud point, and wherein the oil/solvent mixture is cooled at a uniform rate in the range of 1.degree.-8.degree. F/min. to a separation temperature in the range of +25.degree. to -40.degree. F for precipitating wax from said mixture.
摘要翻译： 将其中在100°F下粘度小于约200SUS的轻质蜡状石油馏出物原料加热熔化其中的任何蜡，其中所述加热的蜡状原料与脱蜡溶剂的流动流逐渐混合，所述脱蜡溶剂具有温度 在40°-80°F的范围内，在低于凹陷浊点的5°-10°F的温度下形成油/溶剂混合物，其中油/溶剂混合物以均匀的速率在 1°-8°F / min。 至+ 25℃至-40℃范围内的分离温度，用于从所述混合物中沉淀出蜡。
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公开(公告)号：US4375403A
公开(公告)日：1983-03-01
申请号：US340436
申请日：1982-01-18
CPC分类号： C10G73/06
摘要： A process for dewaxing a petroleum oil stock with a liquid solvent employing direct heat exchange cooling of solvent-oil mixture with an immiscible liquid chilling medium.
摘要翻译： 一种使用溶剂 - 油混合物与不混溶液体冷冻介质直接热交换冷却的液体溶剂脱蜡石油原料的方法。
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公开(公告)号：US4354921A
公开(公告)日：1982-10-19
申请号：US286946
申请日：1981-07-27
摘要： An improved method for solvent dewaxing oils in which a portion of the oil-solvent mixture is chilled to a temperature above its cloud point and a further portion is chilled to a temperature below its cloud point, the portions are combined to produce a mixture substantially at the cloud point, and the combined mixture further cooled to dewaxing temperature at which wax crystals are separated from the solvent and refined oil.
摘要翻译： 一种溶剂脱蜡油的改进方法，其中将一部分油溶剂混合物冷却至高于其浊点的温度，另一部分被冷却至低于其浊点的温度，将这些部分组合以产生基本上在 浊点，并将合并的混合物进一步冷却至脱蜡温度，在该温度下将蜡晶体与溶剂和精制油分离。
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公开(公告)号：US3981789A
公开(公告)日：1976-09-21
申请号：US532961
申请日：1974-12-16
CPC分类号： B03C11/00 , C10G73/30 , C25F7/00 , B03C2201/02
摘要： A method of dewaxing oil which employs the application of reversing electromotive force to the oil while it is being chilled, in order to prevent adherence of the wax crystals.An apparatus combination for dewaxing oil. It includes an elongated container for chilling a body of waxy oil as it flows through. The container acts as one of a pair of electrodes for applying a reversable electromotive force to the oil in order to prevent any adherence. The wax may be recovered by separation following the application of the electrical force.
摘要翻译： 为了防止蜡结晶的附着，在油被冷却的同时对油进行反转电动势的脱蜡油的方法。
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公开(公告)号：US5447628A
公开(公告)日：1995-09-05
申请号：US151642
申请日：1993-11-15
IPC分类号： C10M175/00 , C10G710/00
CPC分类号： C10M175/0075 , C10M175/00
摘要： A used lubricating oil comprising lube oil additives, including zinc dithiophosphate is reconstituted. Zinc dithiophosphate is thermally decomposed at a temperature of 400.degree. F. (204.degree. C.) to 1000.degree. F. (538.degree. C.) for a residence time of 10 to 120 minutes. The resulting oil is subjected to vacuum distillation. A zinc-free (i.e. ash free by ASTM D-482) oil is stabilized by catalytic hydrogenation or clay treating to produce a lubricating oil blending stock. About 5 to 25 vol % is recovered as a metal containing bottoms product, useful as asphalt extender. The process is carried out in the absence of chemical demetallizing.
摘要翻译： 包含润滑油添加剂（包括二硫代磷酸锌）的二手润滑油被重新配制。 二硫代磷酸锌在400°F（204℃）至1000°F（538℃）下热分解停留时间为10至120分钟。 将所得油进行真空蒸馏。 通过催化氢化或粘土处理使无锌（即通过ASTM D-482无灰分）的油稳定，以产生润滑油共混料。 约5至25体积％的回收作为含有底物的金属产物，可用作沥青增量剂。 该过程在没有化学脱金属的情况下进行。
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公开(公告)号：US3965723A
公开(公告)日：1976-06-29
申请号：US575759
申请日：1975-05-08
CPC分类号： G01N33/287 , G01N33/30
摘要： A system measures and records the API gravity the viscosity and the sulfur content of waxy lubricating oil and provides corresponding signals. A computing circuit develops a signal corresponding to the wax content in accordance with the sensed parameter signals and an equation hereinafter disclosed. The wax content signal is recorded.
摘要翻译： 系统测量和记录API重力，蜡质润滑油的粘度和硫含量，并提供相应的信号。 计算电路根据感测的参数信号和下面公开的等式开发对应于蜡含量的信号。 记录蜡含量信号。
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公开(公告)号：US4128472A
公开(公告)日：1978-12-05
申请号：US813141
申请日：1977-07-05
摘要： A solvent dewaxing process for removing wax from intermediate grade waxy petroleum distillate oils wherein a waxy oil stock, prediluted with 0-2 volumes dewaxing solvent is heated to a temperature in the range of about 110 to 130.degree. F for melting all wax therein; wherein the heated waxy oil stock/solvent mixture is cooled to about 5.degree. F above the depressed cloud point and is diluted with 1-5 volumes dewaxing solvent having a temperature 25.degree.-40.degree. F below the depressed cloud point for forming a wax/oil/solvent mixture having a temperature 5.degree.-15.degree. F below the depressed cloud point, and wherein the wax/oil/solvent mixture is further cooled at 1.degree.-8.degree. F/min. to a selected separation temperature in the range of 0 to -40.degree. F for precipitating additional wax. Precipitated wax is removed at the separation temperature to produce a wax free oil/solvent mixture which is subsequently fractionated to yield a dewaxed oil suitable for use in lubricating oils.
摘要翻译： 用于从中等级蜡状石油馏出油中除去蜡的溶剂脱蜡方法，其中将用0-2体积脱蜡溶剂预稀释的蜡质油原料加热至约110至130°F范围内的温度以熔化其中的所有蜡; 其中将加热的蜡状油原料/溶剂混合物冷却至低于浊点的约5°F，并用1-5体积的脱蜡溶剂进行稀释，所述脱蜡溶剂的温度低于凹陷浊点25°-40°F以形成蜡/ 油/溶剂混合物，其温度低于凹陷浊点5-15℃，并且其中将蜡/油/溶剂混合物进一步冷却至1〜8°F / min。 至0至-40°F范围内的选定分离温度，以沉淀额外的蜡。 在分离温度下除去沉淀的蜡以产生无蜡油/溶剂混合物，随后将其分馏，得到适用于润滑油的脱蜡油。
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10.发明授权
公开(公告)号：US3996785A
公开(公告)日：1976-12-14
申请号：US644473
申请日：1975-12-29
CPC分类号： G01N33/2823 , G01N25/08 , G01N33/287
摘要： On-line sensors sense the kinematic viscosity, the infrared absorption, at a predetermined wavelength, and the sulfur content of crude oil and corresponding signals are provided to a computer circuit. The computer circuit solves the equation M%BP={C.sub.1 --C.sub.2 [1n(IRxC.sub.3)]--C.sub.4 S+C.sub.5 [1n(IRxC.sub.3)]S }1nKV, where M%BP is a particular percent boiling point property of crude oil, IR is the infrared absorption of the crude oil, S is the sulfur content of the crude oil, KV is the kinematic viscosity of the crude oil, and C.sub.1 through C.sub.5 are constants.
摘要翻译： 在线传感器感测在预定波长下的运动粘度，红外吸收，原油的硫含量和相应的信号被提供给计算机电路。 计算机电路解决方程M％BP = {C1-C2 [1n（IRxC3）] - C4S + C5 [1n（IRxC3）] S} 1nKV，其中M％BP是原油的特定百分比沸点性质，IR 是原油的红外吸收，S是原油的硫含量，KV是原油的运动粘度，C1〜C5是常数。
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