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Method for preparing biodiesel by utilizing waste animal and vegetable oil

A technology for discarding animals, plants, and biodiesel, which is applied in the field of biodiesel preparation, and can solve the problems of no disclosed embodiment, unfavorable industrialized production of biodiesel, etc.

Inactive Publication Date: 2016-11-30
贾红琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of preparing biodiesel, although no catalyst is added in this process, it does not disclose any specific implementation, but only generally discloses five relatively high-level operating steps, which is not conducive to the industrial production of biodiesel

Method used

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  • Method for preparing biodiesel by utilizing waste animal and vegetable oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Heat 10L of waste animal and vegetable fats and oils to liquefy them, and filter to remove impurities once; put the filtered liquid waste fats and oils in a heating container, heat up and start stirring at a speed of 800 rpm, and then add 1.8L of pure Water, 1.5% sulfuric acid, when the temperature rises to 80°C, react at 80-85°C for 1-1.5h, then put the hydrolyzed waste grease into layers and separate to obtain the upper organic solution; put the obtained organic solution in In the heating container, raise the temperature and start stirring at 1000 rpm, and add 1L of methanol. When the temperature rises to 65°C, keep the temperature constant and react for 0.5-1h; Most of the glycerin and the remaining light liquid part were distilled at 60-65°C to obtain 9.6L of biodiesel after removing water.

Embodiment 2

[0025] Heat 10L of waste animal and vegetable fats and oils to liquefy them, and filter to remove impurities 3 times; put the filtered liquid waste fats and oils in a heating container, heat up and start stirring at a speed of 1000 rpm, and then add 2.0L of pure Water, 1.6% sulfuric acid, when the temperature rises to 80°C, react at 80-85°C for 1-1.5h, then put the hydrolyzed waste grease into layers, and separate to obtain the upper organic solution; place the obtained organic solution in In the heating vessel, raise the temperature and start stirring at 1100 rpm, and add 1.8L of methanol. When the temperature rises to 65°C, keep the temperature constant and react for 0.5-1h; The larger part of glycerin and the remaining light liquid part were distilled at 60-65°C to obtain 9.9L of biodiesel after removing water.

Embodiment 3

[0027] Heat 10L of waste animal and vegetable fats and oils to liquefy them, and filter to remove impurities once; put the filtered liquid waste fats and oils in a heating container, heat up and start stirring at a speed of 1000 rpm, and then add 1.8L of pure Water, 2.0% sulfuric acid, when the temperature rises to 80°C, react at 80-85°C for 1-1.5h, then put the hydrolyzed waste grease into layers, and separate to obtain the upper organic solution; put the obtained organic solution in In the heating container, raise the temperature and start stirring at 1000 rpm, and add 1.2L of methanol. When the temperature rises to 65°C, keep the temperature constant and react for 0.5-1h; The larger part of glycerin and the remaining light liquid part were distilled at 60-65°C to obtain 9.7L of biodiesel after removing water.

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Abstract

The invention relates to a method for preparing biodiesel by utilizing waste animal and vegetable oil generated in the catering industry or in slaughter houses. The method comprises a step 1) of degumming, a step 2) of hydrolysis, a step 3) of alcohol reaction, and a step 4) of centrifugal layering to obtain the biodiesel finally. According to the method, the shortcoming that in the prior art, a corrosive acid or base catalyst is massively used to produce the biodiesel is overcome, and the method is high in diesel yield, good in diesel-producing performance and suitable for industrial mass production.

Description

technical field [0001] The invention relates to a method for preparing biodiesel, in particular to a method for preparing biodiesel from waste animal and vegetable oil produced by catering industry or slaughterhouse. Background technique [0002] Biodiesel refers to a renewable diesel fuel that can replace petrochemical diesel oil, which is made from oil crops, wild oil plants, engineering microalgae and other aquatic vegetable oils, animal oils, and catering waste oils through transesterification processes. Biodiesel is a kind of biomass energy, which is a mono-alkyl ester of long-chain fatty acid obtained from biomass by pyrolysis and other technologies. Biodiesel is a mixture of complex organic components with extremely high oxygen content. These mixtures are mainly organic compounds with large molecular weight, including almost all kinds of oxygen-containing organic compounds, such as: ethers, esters, aldehydes, ketones, phenols, organic acids, alcohols Wait. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/10C11C3/00C10L1/02
CPCC10L1/02C11C3/00C11C3/10Y02E50/10
Inventor 贾红琴张毅
Owner 贾红琴
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