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Production device and method of biodiesel

A technology for biodiesel and production equipment, which is applied in the fields of biofuel, petroleum industry, liquid carbon-containing fuel, etc., can solve the problems of insufficient catalyst, incompatibility of oil and methanol, contact of reactants, etc., and achieves reasonable design and product quality. The effect of high purity and efficient reaction

Active Publication Date: 2014-09-10
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a biodiesel production device and production method, which solves the problems that oil and methanol are incompatible with each other and the catalyst cannot fully contact the reactant in the transesterification reaction

Method used

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  • Production device and method of biodiesel

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]0.72kg / h soybean oil enters the (0.1MPa) reaction tower from the top of the tower through pump E-1, and flows down into the CaO catalyst reaction layer 1 at a temperature of 82°C. 1kg / h methanol enters from the tower waist through pump E-2 , the temperature is 120°C, the gaseous methanol enters the CaO catalyst reaction layer upwards, and reacts with soybean oil in countercurrent contact, the reaction temperature is 94°C, and the unreacted methanol rises to the top of the tower (temperature 83.2°C) through the reflux ratio of 1.1:1, part of which returns to the reaction The other part enters the methanol storage tank 13. The reaction product flows down the bed to the temperature raising layer 2 (temperature 135°C), and the miscible methanol is gasified again in the temperature raising layer 2 and enters the CaO catalyst reaction layer 1 for reaction, and other products continue to flow down to the static layered kettle 3 for standing layered. The lower layer is glycerin...

Embodiment 2

[0038] 1kg / h of pretreated waste oil (acid value 3.2mgKOH / g) enters from the top of the tower (0.2MPa) by pump E-1 and flows down into the Zr-SBA-15 catalyst reaction layer 1 at a temperature of 138°C, 3.56kg Methanol / h enters from the tower waist by pump E-2, the temperature is 180°C, the gaseous methanol enters the Zr-SBA-15 catalyst reaction layer upwards, and reacts with the pretreated waste oil countercurrently, the reaction temperature is 160°C, the unreacted Methanol rises to the top of the tower (temperature 140.4°C) and passes through a reflux ratio of 1.2:1, part of which returns to the reaction tower, and the other part enters the methanol storage tank 13. The reaction product flows down the bed to the temperature raising layer 2 (temperature 205°C), and the miscible methanol is vaporized again in the temperature raising layer 2 and enters the Zr-SBA-15 catalyst bed 1 for reaction, and other products continue to flow down to the static layered kettle 3. Let it stand...

Embodiment 3

[0040] 1kg / h pretreated kitchen waste oil (acid value 4.4mgKOH / g) enters the (0.15MPa) reaction tower from the top of the tower through the pump E-1, and flows down into the H β Catalyst reaction layer 1, the temperature is 138°C, 1.45kg / h methanol enters from the tower waist through the pump E-2, the temperature is 190°C, and the gas phase methanol enters the H β Catalyst bed, countercurrent contact reaction with the pretreated kitchen waste oil, the reaction temperature is 150°C, the unreacted methanol rises to the top of the tower (temperature 139.5°C), through the reflux ratio of 1.0:1, part of it returns to the reaction tower, and the other part Enter the methanol storage tank 13. The reaction product flows down the bed to the heating layer 2 (temperature 230°C), and the miscible methanol is gasified again in the heating layer 2 and enters the H β The catalyst reaction layer 1 reacts, and other products continue to flow down into the static stratification kettle 3 for st...

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Abstract

The invention discloses a production device and method of biodiesel and belongs to the technical field of preparation of biodiesel. The production device comprises a tower-kettle integrated device, a rectifying tower, a flash tower and a separation tower. The production method comprises the following steps: carrying out a countercurrent contact reaction on grease which flows downward through a catalyst reaction layer and gas phase methanol; recovering unreacted methanol; introducing reaction products through a temperature raising layer to a layering kettle to further separate polar products and coarse oil products; and rectifying or separating and purifying to obtain multifunctional biodiesel. According to the production device and method disclosed by the invention, solid-liquid-gas phase catalytic reactions are carried out in the catalytic reaction layer of a reaction tower, so that the reactants and the catalyst fully contact for efficient reaction, and the conversion ratio is increased by 10-25% than that in the prior art. The production device is reasonable in design, high in product purity and complete in cyclic utilization and suitable for market promotion and has a very good application prospect.

Description

technical field [0001] The invention relates to a biodiesel production device and a production method, in particular to a tower and kettle integrated production device and a method for producing multifunctional biodiesel, belonging to the technical field of biodiesel preparation. Background technique [0002] Biodiesel is a green, environmentally friendly and renewable secondary energy source. Compared with primary energy petroleum diesel, it has the advantages of high flash point, safe storage and transportation, biodegradable itself, and environmental friendliness. The content of harmful substances such as sulfur dioxide, sulfide, and carbon dioxide is low. Replacing petroleum diesel with biodiesel can alleviate the current shortage of diesel supply, thereby alleviating the oil supply crisis. [0003] The preparation of biodiesel is made from animal and vegetable fats and oils through transesterification with methanol or ethanol under the action of a catalyst. The methods...

Claims

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Application Information

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IPC IPC(8): C11C3/10C10L1/02
CPCY02E50/13Y02E50/10
Inventor 张继龙张小超易群杜朕屹郑华艳荆洁颖陈广建郑静
Owner TAIYUAN UNIV OF TECH
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