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Method using plant oil after-cut fraction for production of green lubricating oil

A post-distillation and vegetable oil technology, which is applied in lubricating compositions, grease/fat separation, petroleum industry, etc., can solve the problems of reducing the biodegradation rate of vegetable lubricating oil, and achieve improved transfer efficiency, no harmful residue, and high detergency Effect

Active Publication Date: 2015-07-08
统一石油化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of a large amount of antioxidants (1%-5%) reduces the biodegradation rate of vegetable lubricants
[0010] There is no report on the production of vegetable lubricating oil from the isolated distillate of plant natural spices and the high-temperature polymer at the bottom of the distillation tank

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) After the tea tree oil is rectified and separated to separate various main components, the final fraction and the bottom of the tower bottom, which account for 6-8% of the total, are mixed for later use.

[0039] (2) In the vacuum distillation tower device with a tower height of 8m, more than 100 trays, and 80-100 mesh stainless steel packing, add the fraction of vegetable oil with a volume of 75%, raise the temperature to about 160°C, and maintain the vacuum degree at Under the condition of -0.98mpa, heat preservation distillation for more than 32 hours, until no volatile oil flows out from the top of the tower, cool down and discharge the residual liquid in the bottom of the kettle, let it cool to 50°C-60°C, filter with a 150-mesh filter, and obtain the vegetable oil distillation bottom Polymers, adjusted to give lubricating oils for bearings.

Embodiment 2

[0041] (1) After the Eucalyptus eucalyptus oil is rectified and separated to separate various main components, the final fraction and the bottoms of the tower still account for 8-10% of the total and are mixed for later use.

[0042] (2) In the vacuum distillation tower device with a tower height of about 12m, a plate number of more than 100, and 80-100 mesh stainless steel packing, add the fraction of vegetable oil with a volume of 75%, raise the temperature to about 160°C, and maintain the vacuum degree Under the condition of -0.98mpa, heat preservation distillation for more than 36 hours, until no volatile oil flows out from the top of the tower, cool down and discharge the residual liquid in the bottom of the kettle, let it cool to 50°C-60°C, and filter with a 150 mesh filter to obtain a vegetable oil distillation kettle Bottom polymer, then put into ethylene-propylene copolymer OCP 0080, 0030 weight content 0.3-0.7% and compounded antioxidant dialkyl dithiophosphate 0.2%,...

Embodiment 3

[0044] (1) After the star anise oil is rectified and separated to separate various main components, the remaining fraction and the bottom of the tower bottom account for about 10% of the total and the residue is mixed for later use.

[0045] (2) In the vacuum distillation tower device with a tower height of 10m, more than 100 trays, and 80-100 mesh stainless steel packing, add the fraction of vegetable oil with a volume of 75%, raise the temperature to about 170°C, and maintain the vacuum degree at Under the condition of -0.98mpa, heat preservation distillation for more than 36 hours, until no volatile oil flows out from the top of the tower, cool down and discharge the residual liquid in the bottom of the kettle, let it cool to 50°C-60°C, and filter it with a 150-mesh filter to obtain vegetable oil distillation bottom Polymer, test its basic physical and chemical indicators, and then adjust according to the test results, and then put in ethylene-propylene copolymer OCP 0080, ...

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Abstract

The present invention provides a method for using plant oil after-cut fraction for production of green lubricating oil, and the process comprises the following steps: various main components are separated by distillation of plant crude oil, after-cut fraction and a residue accounting for 6-15% of the total tower kettle substrate are heated to about 150 to 200 DEG C in a vacuum distillation tower device for thermal insulation distillation for more than 30-40 hours under the condition of maintaining the vacuum degree in-0.98mpa, wherein the vacuum distillation tower device has the tower height of 7-15m, and the plate number of more than 100, and use a 80-100 mesh stainless steel filler, kettle bottom residual liquid is discharged after cooling, the kettle bottom residual liquid is placed for cooling to 50 DEG C to 60 DEG C, and filter with a 150 mesh filter screen to obtain plant oil distillation kettle bottom polymer, the green lubricating oil is prepared by further addition of composite additives, and the green lubricating oil is similar with mineral base oil in density, viscosity, flash point, pour point and other indexes, and is good in thermal stability, biodegradable, low-cost, and environment friendly.

Description

technical field [0001] The invention relates to the technical field of extracting oil from natural plants, in particular to a method for producing green lubricating oil by utilizing the rear fraction of vegetable oil and the bottom of a tower still. Background technique [0002] With the development of society, the consumption of lubricating oil is increasing year by year. Lubricating oil is more and more widely used in automobile, mechanical processing, transportation, metallurgy, coal, construction and other industries. This is because more than 95% of lubricating oils currently use mineral oil as the base oil. Mineral oil is non-degradable and will remain and enrich in the natural environment for a long time, causing great harm to organisms and causing adverse effects. profound environmental problems. About 30% of the world's annual lubricating oil consumption is discharged into the environment due to various reasons, and the additives contain various metal elements such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M101/04C10M177/00C11B7/00C10M169/04C10N20/00
Inventor 林葵黄岛平刘培杰樊兰兰韦英亮黄和明黄文琦罗艳张思敏黄徽白懋嘉
Owner 统一石油化工有限公司
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