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Method for producing biological diesel oil

A biodiesel, production method technology, applied in the preparation of biological raw materials, biofuels, liquid hydrocarbon mixtures, etc., can solve the problems of low conversion rate, increased production cost, unstable product quality, etc., and achieve the effect of low cost

Inactive Publication Date: 2008-07-30
新疆协力新能源有限责任公司
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AI Technical Summary

Problems solved by technology

And the existing chemical acid catalyst method is to pressurize and hydrolyze various oil bottoms of animal and vegetable oils and fats, waste oil, acidified oil, etc., and then carry out esterification reaction with methanol under the effect of an acid catalyst to generate corresponding fatty acid methyl esters, and then Biodiesel is obtained through dealcoholization and washing. In this method of biodiesel production, acidified oil must be used as raw material, and the acidified oil must be converted into fatty acid for esterification. Not only the methyl ester product has not been refined with high precision, resulting in unstable product quality, Moreover, the conversion rate is low, which increases the production cost

Method used

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Examples

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Embodiment

[0013] Embodiment: the production method of a kind of biodiesel of the present invention comprises the following steps:

[0014] (1) Send the acidified oil of vegetable oil, animal fat, gutter oil and catering waste oil and water into the high-efficiency hydrolysis tower with a shielded electric pump, keep the pressure at 1.5-2.0Mpa, and control the temperature at 210-230°C Inside, the raw materials are heated and hydrolyzed to produce black fatty acids and glycerin.

[0015] (2), the black fatty acid that obtains in the step (1) and the concentration of 14% (weight percentage) methyl alcohol, 2% (weight percentage) are that the sulfuric acid import of 98% is in the esterification still, and its temperature is controlled at 100~110 In the range of ℃, gas-phase esterification is carried out to generate crude fatty acid methyl ester.

[0016] (3), the crude fatty acid methyl ester that generates in step (2) and 2% (percentage by weight) sodium hydroxide and water of industrial ...

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PUM

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Abstract

The invention discloses a production method of biological diesel oil, which takes oil feet acidified oil of vegetable oil, animal fat, drain oil and restaurant waste oil as material; and contains four steps of grease no-catalysis high-pressure hydrolysis, fatty acid gas-phase esterification, neutralization dealcoholization and washing, fatty acid methyl ester high-vacuum continuous distillation, etc. The production method of the invention has the advantages that the reaction time is short, the raw material conversion rate is high, the production cost is low, and the product quality is high; therefore the invention is applicable for industrial production.

Description

technical field [0001] The invention relates to a production method of biodiesel, in particular to a production method of biodiesel using acidified vegetable oil oil, animal fat, gutter oil and catering waste oil as raw materials. Background technique [0002] As we all know, in recent years, with the increasing depletion of fossil energy and the rapid increase of human demand for fuel energy, people have tried their best to speed up the development of alternative fuel energy. Bioenergy has attracted people's attention because of its sustainable and renewable resources. Fuel alcohol, biohydrogen production and biodiesel in bioenergy have emerged one after another, among which biodiesel is more popular for its excellent environmental performance. [0003] At present, there are two main methods for producing biodiesel at home and abroad: one is to use animal and vegetable oils and low-carbon alcohols to carry out esterification reaction with lipase to generate the correspondi...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/10Y02P30/20
Inventor 杨有胜柳娟霍新强
Owner 新疆协力新能源有限责任公司
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