5results about "Lubricating oils distillation" patented technology

A method for producing a lubricating base oil is provided. (b) separating the feedstream into at least two fraction streams, including a first fraction stream and a second fraction stream; (c) introducing the feedstream before step (b) or the at least two fraction streams after step (b) into a first hydrogenation step; and (d) introducing the feedstream before step (b) or the at least two fraction streams after step (b) into a second hydrogenation step, wherein after steps (b) through (d), the at least two fraction streams produce at least two product streams, including a first product stream and a second product stream, and the first product stream has a higher viscosity index than the second product stream.

The invention discloses a waste oil distillation regeneration system and method based on internal heating and internal circulation, and belongs to the technical field of waste oil regeneration treatment. The system comprises a distiller, a vacuum system, a condensation collection system, an electromagnetic heating device and a double stirring device. The electromagnetic heating device directly heats the distiller tank body through induction heating, and the heat efficiency reaches 90%-98%; the double-stirring device is composed of an outer-layer low-speed stirrer and an inner-layer high-speed stirrer, a forced internal circulation flow field is formed, heat transfer is enhanced, coking is prevented, it is ensured that the temperature of raw oil is uniform, and the overall temperature gradient is controlled within + / -0.5 DEG C. According to the method, through cooperative operation of vacuum pressure reduction, electromagnetic heating and internal circulation, efficient distillation is achieved, the yield of the base oil is remarkably increased, and energy consumption and operation cost are reduced. The system structure is simplified, traditional boilers and external pipelines are omitted, the stability and safety are greatly improved, the occupied area of equipment is small, the maintenance cost is low, and both environmental protection and economic benefits are achieved.

A process of producing Group III base oils, along with a naphtha product and diesel product, from whole waxy crude oil is provided. The inventive process omits the typical vacuum distillation stage and separations to form the typical cuts off of the vacuum tower. By selecting a waxy crude oil suitable for processing without separations, the crude oil may be hydroprocessed, dearomatized, dewaxed, and hydrofinished to produce a Group III base oil. Additionally, the dewaxing catalyst will isomerize the naphtha range molecules to increase the octane value to a suitable level for blending into gasoline and the diesel range molecules to reduce the diesel cloud point.

The present disclosure provides a method of preparing a lube base oil. The method comprises (a) providing a feed stream, (b) separating the feed stream into at least two fraction streams comprising a first fraction stream and a second fraction stream, and (c) before or after the separating of the feed stream, introducing the feed stream or at least two fraction streams into a first and second hydro-processing treatments to produce at least two product streams, and the first product stream has a higher viscosity index (VI) than the second product stream. The present disclosure also provides a lube base oil and a lubricant composition comprising the lube base oil.

The invention discloses refrigeration oil purification equipment which comprises an equipment box, an in-box supporting frame is installed in the equipment box, a multi-stage filtering assembly is installed on the in-box supporting frame, a controller is arranged beside the multi-stage filtering assembly, a heater is arranged behind the multi-stage filtering assembly, a vacuum separator is arranged beside the heater, and a moisture processor is installed on the in-box supporting frame. A moisture discharge device is arranged below the moisture processor; the multi-stage filtering assembly is provided with a primary filtering device, a secondary filtering device and a fine filtering device. According to the invention, refrigeration oil is filtered for three times through the primary filtering device, the secondary filtering device and the fine filtering device, in each filtering process, primary screening is completed by the sealing cone cylinder, and then the refrigeration oil is conducted to enter the magnetic secondary filtering cylinder to magnetically attract metal chips in the refrigeration oil under the cooperation of the filtering holes in the cone cylinder; the purification effect is ensured after screening of the three-stage fine screen drum, efficient purification is achieved after three times of filtering, and more thorough impurity removal work is achieved.