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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  • 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 v

Method used

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

Examples

Experimental program
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Effect test

Example Embodiment

[0027] Example 1

[0028] Add cottonseed oil to storage tank E, and add methanol 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 stream reaction volume (that is, the feed volume space velocity is 1h- 1. The reaction time is 1h). Pump cottonseed oil and methanol into the intermediate tank C respectively, pre-mix with the circulating materials in the intermediate tank, and then pump into the impinging stream reactor, and transesterification occurs through the impingement. For the reaction, the amount of recycled materials is 95% of the feed rate. The reaction temperature was controlled to 130°C and the reaction pressure was 0.8MPa. The reaction product flowing out of the static mixer outlet was separated by standing to obtain the fatty acid ester phase (upper layer), which was analyzed by Agilent’s 6890N gas chromatograph. The fatty acid triglyceride conversion rate was 100%, and the c...

Example Embodiment

[0029] Example 2

[0030] According to the method of Example 1, except that the feed rate is one-half of the impinging stream reactor, the amount of circulating material is 75% of the feed rate. The reaction product flowing out of the discharge port of the impinging stream reactor was separated by standing to obtain the fatty acid ester phase (upper layer), which was analyzed by Agilent’s 6890N gas chromatograph. The conversion rate of fatty acid triglyceride was measured to be 100%. The content of methyl ester in the ester phase is 93.8%.

Example Embodiment

[0031] Example 3

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

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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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