Method for preparing biological diesel oil from rubber seed oil

A technology for biodiesel and a production method, which is applied in the field of oil modification, can solve the problems of difficult preservation of raw materials and low oil yield, and achieves the effects of mild reaction conditions and no environmental pollution

Inactive Publication Date: 2008-05-28
钱生球
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the aforementioned problems of low oil yield and difficult

Method used

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  • Method for preparing biological diesel oil from rubber seed oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] ① Remove impurities from the collected rubber seeds, boil and heat at 120°C for 15 seconds to kill lipase, cool, store, and set aside.

[0016] ② With a press, according to the prior art, after the pressed oil is filtered, it becomes crude oil.

[0017] ③Add 1000kg of crude oil to 200kg of methanol, dehydrate, add 20kg of sulfonic acid resin with a mass ratio of 2%, and 5kg of anhydrous sodium sulfate as a water-absorbing agent to absorb the water generated by the esterification reaction, stir at 80°C, and reflux for 2 hours. Check the acid value as the endpoint.

[0018] ④Separate the solid catalyst and the water-absorbing agent, add 0.5% sodium methoxide and 0.5% sodium hydroxide in a mass ratio of crude oil, and react at 60° C. for one hour.

[0019] ⑤ Neutralize the catalyst with glacial acetic acid, let stand to release the lower layer of glycerin.

[0020] ⑥ Add 10kg of active white powder with a mass ratio of 1% oil. Stir at 80 °C for 0.5 h. Filter with a fil...

Embodiment 2

[0022] Use fur bran oil with an acid value greater than 30

[0023] ①Take 2000kg of bran oil, add 500kg of methanol to dehydrate under reduced pressure for 0.5 hours, add 5kg of sulfonated coal and 5kg of concentrated sulfuric acid as a dehydrating agent, absorb the water generated by the reaction, stir and reflux at 80°C for 2 hours, check the acid value to determine the end point, and release dilute sulfuric acid, separate the catalyst.

[0024] ② Add 10 kg of a mixture of sodium hydroxide and sodium methoxide (the mass ratio is 1:1), and stir and react at 60°C for 1 hour.

[0025] ③Neutralize the catalyst with ice vinegar until neutral, let it stand, and release the lower layer of glycerin.

[0026] ④ When the vacuum degree is greater than 756mmHg, heat and distill, and cut the methyl ester fraction to obtain pure biodiesel.

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Abstract

Provided is a process for producing biodiesel, belonging to the technical field of grease modification. The process is characterized in that inedible oils with high acid value, such as rubber seed oil is employed, raw bran oil, raw corn oil, and low carbon alcohol accomplish two reactions of esterificationand and alcoholysis in a single process, and the key technology for achieving biodiesel with high efficiency is esterification and alcoholysis of catalysts.

Description

technical field [0001] The invention belongs to the technical field of oil modification, and relates to a method for preparing methyl ester of fatty acid, that is, biodiesel. Background technique [0002] With the needs of human production and life, non-renewable oil and coal stocks are getting less and less, oil prices are rising, and energy shortages have become a top priority for human beings. The development of renewable bio-energy is a technology that is of common concern to the world. Frontier project. [0003] At present, the research on bioenergy focuses on fuel ethanol and biodiesel. The chemical composition of so-called biodiesel is methyl ester of fatty acid. Canada and other countries have successfully developed it decades ago, using abundant rapeseed and methanol under the action of an alkaline catalyst to generate methyl esters of rapeseed oil fatty acids, which are transported in tractors, diesel vehicles, power generation, etc. in Canada and Australia Very ...

Claims

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Application Information

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IPC IPC(8): C10G3/00C11B3/04C11B3/10
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 吴应环钱刚钱雷钱生球
Owner 钱生球
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