Production process of biological diesel

A biodiesel and production method technology, applied to vegetable fats and oils, can solve the problems of difficult recovery of esterification products, short service life, complicated process, etc., and achieve the effects of avoiding catalyst separation, reducing production costs, and simplifying the process flow

A biodiesel and production method technology, applied to vegetable fats and oils, can solve the problems of difficult recovery of esterification products, short service life, complicated process, etc., and achieve the effects of avoiding catalyst separation, reducing production costs, and simplifying the process flow

CN1861749AActive Publication Date: 2006-11-15CHINA PETROLEUM & CHEM CORP +1
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 10 grams of strongly basic anion exchange resin (D201X7, produced by Dandong Chemical No. While stirring, the temperature of the materials in the four-neck glass flask was heated to 65°C. React for 2 hours. After the reaction is over, distill under normal pressure until methanol and diethylamine no longer distill off, stop the distillation, cool to room temperature, filter out the catalyst and leave it to separate to obtain the fatty acid ester phase (upper layer). According to the GC-14B gas chromatograph analysis, the fatty acid triglyceride conversion rate is 95.6%, and the methyl ester content in the fatty acid ester phase is 96.8%.

Embodiment 2

[0031] Put 10 grams of strongly basic anion exchange resin (D201X7) into the autoclave first, then mix 70 grams of methanol and 20 grams of diethylamine with 200 grams of cottonseed oil, heat to 65 ° C, and pump it into the autoclave Among them, the reaction time is 0.5 hour, after the reaction is finished, cool down, filter out the catalyzer and analyze with the GC-14B gas chromatograph of Daojin Company, the conversion rate of fatty acid triglyceride is 94.8%, and the amount of methyl ester in the fatty acid ester phase The content is 95.7%.

Embodiment 3

[0037] According to the method of embodiment 1, just change reaction temperature to be 30 ℃, 50 ℃, record fatty acid triglyceride conversion ratio 80.5%, 90.6%, the content of the methyl ester in the fatty acid ester phase is respectively 94.3%, 95.7%.

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Abstract

This invention relates to the preparation of the biological diesel fuel from the fat acid triglyceride, and special from the animal, vegetable tallow and oil. This invention takes the solid alkali as the catalyst, and the addition of the amine is as the third component. It can gain the high ratio of conversion and the lifetime of the catalyst is long. Comparing to the existing technology, the process of this invention is simple, the condition is moderate, the conversion is high, the by-product is less, and the lifetime of the catalyst is long. The diesel fuel can be produce from the animal and vegetable tallow and oil.

Description

technical field [0001] The invention relates to a method for producing biodiesel, in particular to a method for producing biodiesel from fatty acid triglycerides, especially animal and vegetable fats and oils. Background technique [0002] Fatty acid triglycerides, especially animal and vegetable fats and oils, monoglycerides obtained by transesterification with low molecular weight monohydric alcohols, have similar properties to diesel oil obtained from petroleum fractions, and can be used as fuels. The fuel obtained in this way is called biodiesel. [0003] The biodiesel produced by the transesterification reaction of oil has the following advantages: 1) It has excellent environmental protection characteristics. Biodiesel has low sulfur content and does not contain aromatic hydrocarbons that pollute the environment. 2) It has good engine low-temperature starting performance, and the condensation point without additives can reach -20°C. 3) It has good lubricating perform...

Claims

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Application Information

Patent Timeline
15 Nov 2006
Publication
CN1861749A
IPC
C10G3/00
CPC
Y02E50/10; Y02P30/20
Inventors
霍稳周; 黎元生