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Process for preparing biological diesel oil by using waste oil of plant and animal

A biodiesel, animal and plant technology, applied in the petroleum industry, biological raw materials, biofuels, etc., can solve the problems affecting the quality and yield of refined oil, long esterification time, incomplete esterification, etc., to achieve high yield, The production reaction time is short and the effect of reducing environmental pollution

Inactive Publication Date: 2006-11-22
刘火成 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a solution to the technical problems of long esterification time and incomplete esterification in the current production process of using acidified oil, gutter oil and other mixed oils to produce biodiesel, thus affecting the quality of finished oil and low yield A process for producing biodiesel from waste animal and vegetable oils by making acidified oil or gutter oil complete the esterification reaction in 4-8 hours under normal temperature and pressure and under the action of a catalyst, and the esterification rate reaches 96%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Take 1 ton of acidified oil and pump it into the esterification kettle, and add 0.5 kg of solid phytic acid.

[0030] (2) Get 40 kg of sulfuric acid and 140 kg of methanol mixture and pump it into the drip tank.

[0031] (3) Heat the esterification tank to raise the temperature to 50°C, stir at the same time, turn on the switch of the dripping tank, let it drop slowly, try to control the whole liquid at the end of 1-3 hours, and continue stirring until the end of the dripping After 6 hours, monitor and measure the acid value until the acid value is below 5, and the esterification is completed.

[0032] (4) After standing for 2 hours, remove the sediment at the bottom (if there is too much sediment, it must be repeated twice).

[0033] (5) Put 200 kilograms of 10% salt water into the esterification kettle, stir for 10 minutes, leave it for 20 minutes, discharge the sediment at the bottom of the kettle, and wash out the catalyst. Repeat this step until PH=6.

[003...

Embodiment 2

[0038] (1). Take 1 ton of waste oil, put it into the oil-foot kettle, add 200 kg of 10% salt water, directly heat the raw materials in the oil-foot kettle to 100°C with steam, and stir for 1 hour at the same time, and let it stand for 3 hours. After removing impurities after stratification, about 0.92 tons of acidified oil can be obtained (depending on the quality of the treated urban waste oil, the yield is generally 0.9 to 0.92).

[0039] (2). Pump the treated waste oil into the esterification tank, and then proceed according to the process steps of 1-8 in Example 1 to prepare the finished product of biodiesel.

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Abstract

The invention discloses a biological diesel manufacturing technology of animal and plant waste oil, which comprises the following steps: adopting acidifying oil and urban waste oil as raw material; reacting for 4-8 h in the autoclave under normal pressure through catalyst; making esterification rate at 96 percent. The invention simplifies the manufacturing technology and reaction time, which recycles the waste oil into biological diesel.

Description

Technical field: [0001] The invention relates to a process for producing biodiesel, in particular to a process for producing biodiesel by utilizing animal and vegetable waste oil. Background technique: [0002] With the rapid development of the automobile industry and other industries, as well as the improvement of the mechanization level of agricultural production, the demand for fuel oil is greatly increased, and the exploitation of underground oil resources is also increasing. But according to experts' prediction, within this century, oil resources will be exhausted. Therefore, on the one hand, countries in the world are using oil resources economically and economically; on the other hand, they are also actively looking for new energy sources or developing alternative fuels. Biodiesel is one of the alternatives to petroleum resources. It can not only completely replace diesel, but also contains very little sulfur dioxide in the exhaust gas after combustion, which is only...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/10Y02P30/20
Inventor 刘火成杜江
Owner 刘火成
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