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Reaction device for manufacturing biodiesel

A reaction device, biodiesel technology, applied in the direction of biofuel, fatty acid esterification, etc., can solve the problems of low production efficiency, large environmental pollution, high production cost, etc., achieve the goal of changing the equilibrium state, shortening the reaction time, and reducing production cost Effect

Inactive Publication Date: 2012-09-19
SHANGHAI ZHONGMING CHEM TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing biodiesel reaction device has the following disadvantages: (1) complex structure, high energy consumption, large discharge of three wastes, and large environmental pollution; (2) complex production process, long reaction time, and high labor intensity for workers; (3) Low production efficiency and high production cost

Method used

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  • Reaction device for manufacturing biodiesel
  • Reaction device for manufacturing biodiesel
  • Reaction device for manufacturing biodiesel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Put 100kg of waste oil with an acid value of 19.2mgKOH / g and 30kg of methanol into the reactor 3 through inlet 1 and inlet 2 respectively, start the circulation pump 7, and enable the solid acid catalyst packing column 9 and reactor 3 to form a closed cycle by switching the valve In the pipeline, turn on the ultrasonic generator 8, and after 1.5 hours of ultrasonic-assisted reaction, the acid value is 1.25 mgKOH / g, close the solid acid catalyst packed column 9 valve, enable the solid alkali catalyst packed column 10 and the reactor 3 to form a closed circulation pipeline, Ultrasound assisted reaction for 15 minutes, and the transesterification reaction was completed. Turn off the ultrasonic generator 8, start the circulation pump 7, recover excess methanol through the methanol recovery condensing device 11, let it stand for 30 minutes after the methanol is completely recovered, drain the glycerol water produced by the reaction through the glass cup 4 from the outlet 5, a...

Embodiment 2

[0015] Put 100kg of acidified oil with an acid value of 195.2mgKOH / g and 30kg of methanol into the reactor 3 through inlet 1 and inlet 2 respectively, start the circulation pump 7, and activate the solid acid catalyst packing column 9 and reactor 3 to form a closed cycle by switching the valve Turn on the ultrasonic generator 8 in the pipeline, and after 3.0 hours of ultrasonic-assisted reaction, the acid value drops to 0.98 mgKOH / g, and the esterification reaction is completed. Turn off the ultrasonic generator 8, start the circulating pump 7, and recover excess methanol through the methanol recovery and condensing device 11. After the methanol is completely recovered, turn off the circulating pump 7, let it stand for 30 minutes, and drain the waste water generated by the reaction from the outlet 5 through the glass cup 4 , methyl ester is discharged from outlet 6, and the measured methyl ester content is 98.5%.

Embodiment 3

[0017] 100kg of jatropha seed oil with an acid value of 2.73mgKOH / g and 30kg of methanol are injected into the reactor 3 through the inlet 1 and the inlet 2 respectively, the circulation pump 7 is started, and the solid alkali catalyst packing column 10 and the reactor 3 are formed by switching the valve. The circulation pipeline is closed, the ultrasonic generator 8 is turned on, and the ultrasonic-assisted reaction is carried out for 15 minutes, and the transesterification reaction is completed. Turn off the ultrasonic generator 8, start the circulating pump 7, and recover excess methanol through the methanol recovery and condensing device 11. After the methanol is completely recovered, turn off the circulating pump 7, let it stand for 30 minutes, and discharge the glycerol water produced by the reaction through the glass sight cup 4 and out of the outlet 5. The methyl ester is discharged from the outlet 6, and the measured methyl ester content is 96.6%.

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Abstract

The invention discloses a reaction device for manufacturing biodiesel, which comprises a reaction kettle, a methyl alcohol recovering and condensing device, a circulating pump, a solid catalyst filler column and an ultrasonic wave generation device, wherein a raw material diesel material inlet, a methyl alcohol material inlet and the methyl alcohol recovering and condensing device are respectively arranged above the reaction kettle; the bottom of the reaction kettle is provided with a material outlet; the circulating pump is connected onto a reaction liquid circulating pipeline in series; fillers in the solid catalyst filler column comprise solid acid catalyst and solid base catalyst; a solid acid catalyst filler column and a solid base catalyst filler column are connected to the reaction liquid circulating pipeline in parallel; and an ultrasonic wave generation device transducer is arranged on a reaction liquid circulating inlet in the solid catalyst filler column. The device has the advantages of simple structure, reasonable design and low production energy consumption and is suitable for manufacturing the biodiesel by abandoned animal and plant grease (such as swill-cooked dirty oil, hogwash oil, animal and plant oil residue and acidated oil) and microbial grease.

Description

technical field [0001] The invention relates to environmental protection equipment, in particular to a reaction device for producing biodiesel (fatty acid methyl ester). Background technique [0002] Biodiesel refers to a renewable diesel fuel that can replace petrochemical diesel fuel, mainly fatty acid methyl ester, which is made from animal and vegetable oil or microbial oil through esterification and transesterification process. Biodiesel has unique advantages. It can replace petrochemical diesel and be used directly or blended in existing diesel engines, becoming one of the most popular biomass fuels. [0003] From the perspective of the reaction system of biodiesel preparation, oil and methanol are immiscible systems, and mass transfer is one of the important factors affecting the reaction. From a thermodynamic point of view, the transesterification reaction of oil and methanol is a thermodynamic equilibrium reaction, breaking the The thermodynamic equilibrium process...

Claims

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Application Information

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IPC IPC(8): C11C3/10
CPCY02E50/13Y02E50/10
Inventor 杨建斌刘向武任吉海
Owner SHANGHAI ZHONGMING CHEM TECH DEV
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