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Production of diesel oil from trench oil and methyl alcohol

A biodiesel and methanol preparation technology, applied in the field of oil chemistry, can solve the problems of high price, difficulty in entering the oil market, and energy shortage, and achieve the effect of reducing combustion pollution

Inactive Publication Date: 2006-03-15
王建业 +1
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  • Summary
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  • Application Information

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Problems solved by technology

Its problem is that it competes with edible oil for raw materials, and it must not solve the problem of energy shortage at the expense of the interests of ordinary people.
In addition, the price of these raw materials is high, and the cost of biodiesel produced is also high, which is higher than the price of commercially available diesel oil.
Despite the strategic significance of developing a new energy source, it is difficult to enter the oil market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0015] 100 parts by weight of refined waste oil, 30 parts of methanol and 2 parts of composite acid catalyst are sequentially added into the reactor. The reaction kettle is equipped with a stirring device and a backflow device. The agitating device may be a variable speed agitator, or an air compressor. The reaction kettle is equipped with a temperature indicating device. The temperature indicating device may be a calibrated mercury thermometer, or a temperature indicator connected to a temperature sensing element. The reaction temperature is 70-80°C, and flow back for 8 hours. The reactant is divided into two phases after standing still for 2-3 hours, the upper layer is fatty acid methyl ester containing a small amount of methanol, and the lower layer is glycerin and excess methanol. The upper liquid is distilled under normal pressure at 65-70°C to remove residual methanol, and the residue is biodiesel-fatty acid methyl ester. Vacuum distillation can also be used to remov...

specific Embodiment approach 2

[0016] 100 parts by weight of refined waste oil, 40 parts of methanol and 3 parts of composite acid catalyst are sequentially added into the reactor. The reaction kettle is equipped with a stirring device and a backflow device. The agitating device may be a variable speed agitator, or an air compressor. The reaction kettle is equipped with a temperature indicating device. The temperature indicating device may be a calibrated mercury thermometer, or a temperature indicator connected to a temperature sensing element. The reaction temperature is 70-80°C, and flow back for 8 hours. The reaction product is divided into two phases after standing still for 2-3 hours, the upper layer is fatty acid methyl ester containing a small amount of methanol, and the lower layer is glycerin and excess methanol. The upper liquid is distilled under normal pressure at 65-70°C to remove residual methanol, and the residue is biodiesel-fatty acid methyl ester. Vacuum distillation can also be used ...

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Abstract

Production of biological diesel oil from trench oil and methanol is carried out by esterifying trench oil with methanol at specific temperature and composite acid catalyst, ester exchange reacting to obtain fatty acid methyl ester and glycerine, phase splitting, and purifying to obtain the final product. It costs low and has less discharge capacity.

Description

technical field [0001] The invention relates to a method for preparing biodiesel, in particular to a method for preparing biodiesel by utilizing waste oil and methanol, and belongs to the field of oil chemistry. Background technique [0002] The shortage of oil products has become commonplace, not only in China, but also in the whole world, such as the United States, which has already used its reserve oil sources. Oil is a non-renewable resource with limited oil reserves. In addition, local wars, terrorist attacks, and turmoil in some regions and countries all make the already tight oil supply worse. At present, the international oil price has exceeded 70 US dollars / barrel, which has caused great harm to industrial production and people's daily life. Since 2003, my country has become the world's second largest oil consumer after the United States. In order to ensure the stable and rapid development of my country's economy and realize the rejuvenation of the Chinese nation, ...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 王建业陈庆福
Owner 王建业
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