High-quality utilization method for waste oil

A technology for waste oil and grease, applied in the field of lubricating base oil, can solve problems such as health damage and environmental pollution, and achieve the effect of environmental protection and simple process

Inactive Publication Date: 2015-06-17
XINJIANG FUKE OIL PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Waste oil is a waste product of the catering industry, and it covers a large area. At present, there are no good waste utilization channels at home and abroad, which not only causes serious pollution to the environment; Health takes a lot of damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The first step: add waste oil and methanol into the reactor at a mass ratio of 1:2, then add 2wt% concentrated sulfuric acid as a catalyst, react at a temperature of 80°C for 6 hours, and transesterify to obtain a crude product. The crude product was separated and the glycerol was removed to obtain unsaturated fatty acid methyl esters.

[0018] The second step: add the unsaturated fatty acid methyl ester and pentaerythritol obtained from the above reaction into the reactor at a mass ratio of 4:1, and add 2wt% potassium hydroxide as a catalyst at a temperature of 130°C. React for 6 hours under the condition of vacuum degree of 0.01MPa, remove excess pentaerythritol, and obtain unsaturated fatty acid pentaerythritol ester.

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PUM

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Abstract

The invention provides a method for preparing oil-based polyol ester by virtue of gutter oil and using the oil-based polyol ester as basic lubricating oil so as to add treatment and utilization channels for gutter oil and realize the high-quality utilization of gutter oil. The method for preparing the oil-based polyol ester by two-step transesterification reaction comprises the following steps: sequentially adding biomass-based raw materials, methanol and a catalyst into a reaction flask, and performing transesterification reaction to obtain biomass-based methyl ester; sequentially adding the biomass-based methyl ester, polyol and a catalyst into the reaction flask, and performing transesterification reaction to obtain biomass-based polyol ester. The biomass-based raw material comprise gutter oil, acid cottonseed oil and vegetable oil foots/soap, and can be utilized in a high-quality manner, and the prepared biomass-based polyol ester can be used as a raw material of biomass-based lubricating oil.

Description

technical field [0001] The invention relates to a method for high-quality utilization of waste oil, in particular to a method for preparing oil-based polyol ester by using waste oil and using it as lubricating oil base oil. Background technique [0002] Waste oil is a waste product of the catering industry, and it covers a large area. At present, there are no good waste utilization channels at home and abroad, which not only causes serious pollution to the environment; Health takes a lot of damage. How to realize the treatment and utilization of waste oil and maximize the use value of waste oil is an urgent problem to be solved at present. [0003] At present, there are four main methods for the comprehensive utilization of waste oil in my country: one is to produce biodiesel, which has been put into use in China, the United States, the United Kingdom, Japan and other countries, and the technology is mature; the other is to prepare washing products, which are cheap; The thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/10C10M101/04C10M177/00
CPCC11C3/10C10M105/38C10M177/00C10M2207/2835
Inventor 涂晶涂莹涂登源蔡国星程翔孙艳美
Owner XINJIANG FUKE OIL PROD CO LTD
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