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Production process of biological diesel oil

A production method, biodiesel technology, applied to the preparation of biological raw materials, biofuels, liquid hydrocarbon mixtures, etc., can solve the problems of low reaction rate, poor mutual solubility, etc., achieve simplified process flow, high conversion rate, and avoid catalyst separation Effect

Active Publication Date: 2007-04-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It avoids catalyst separation and solves the problems of poor miscibility between alcohol and animal and vegetable oils, two-phase reaction system, transesterification only at the interface, and low reaction rate.

Method used

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  • Production process of biological diesel oil
  • Production process of biological diesel oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Cottonseed oil is added to storage tank E, methanol is added to storage tank F, the molar ratio of methanol to cottonseed oil is 10, and the feed rate of cottonseed oil and methanol is equal to the impinging flow reaction volume (that is, the feed volume space velocity is 1h- 1, that is, the reaction time is 1h), the cottonseed oil and methanol are pumped into the intermediate tank C respectively, pre-mixed with the circulating material in the intermediate tank, and then pumped into the impinging flow reactor, and the transesterification occurs through the impact Reaction, the amount of recycled material is 95% of the feed amount. Control reaction temperature is 130 ℃, and reaction pressure is 0.8MPa, and the reaction product that flows out from static mixer discharge port is separated by standing, obtains fatty acid ester phase (upper layer), utilizes the 6890N gas chromatograph analysis of Agilent Company, records The conversion rate of fatty acid triglyceride is 100%...

Embodiment 2

[0030] According to the method of embodiment 1, only the feed rate is 1 / 2 of the impinging flow reactor, and the amount of recirculated material is 75% of the feed amount. The reaction product flowing out from the discharge port of the impinging flow reactor is separated by standing to obtain the fatty acid ester phase (upper layer), and analyzed by the 6890N gas chromatograph of Agilent Company, the conversion rate of fatty acid triglyceride is 100%, and the fatty acid triglyceride The content of methyl ester in the ester phase was 93.8%.

Embodiment 3

[0032] According to the method of Example 1, the feed rate is a ratio of 1 / 4 of the impinging flow reactor volume, and the circulating material rate is 150% of the feed amount. The reaction product flowing out from the discharge port of the impinging flow reactor is separated by standing to obtain the fatty acid ester phase (upper layer), and analyzed by the 6890N gas chromatograph of Agilent Company, the conversion rate of fatty acid triglyceride is 100%, and the fatty acid triglyceride The content of methyl ester in the ester phase was 94.5%.

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PUM

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Abstract

The invention relates to a producing process of biological diesel oil by making the animal oil (or esters), vegetable oil (or esters) and low-carbon alcohol carry out the eater exchanging reaction in striking admixer to produce the biological diesel oil. Charge the animal oil (or esters), vegetable oil (or esters) and low-carbon alcohol into the striking admixer according to the reacting ratio, control the temperature and pressure of the admixer to make the materials mix and react quickly. The invention can be used in successive production and has high transformation efficiency in malacipeous conditions. Compared to the present technologies, the invention has the advantages of simple procedures, malacipeous conditions, high transformation efficiency and less by-products; besides, the invention can be used to produce diesel oil with different kinds of animal oil (or esters) and vegetable oil (or esters).

Description

technical field [0001] The invention relates to a method for producing biodiesel, in particular to a method for producing biodiesel by using a high-efficiency mixing reactor. 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 performance, which can reduce the wear rat...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 霍稳周黎元生陈明李花伊于镝鸣吕清林高飞
Owner CHINA PETROLEUM & CHEM CORP
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