Method for producing biodiesel by adopting microchannel reactor

A technology of microchannel reactor and biodiesel, which is applied in the fields of biofuel, petroleum industry, liquid carbon-containing fuel, etc., can solve the problem of producing biodiesel by transesterification that has not yet been seen, and achieves avoiding severe corrosion of equipment, excellent corrosion resistance, The effect of improving reaction efficiency

Inactive Publication Date: 2015-07-01
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Existing literature and related patent inquiries show that most of the biodiesel production process adopts tank-type intermittent operation. So far, there has been no research on the method of transesterification to produce biodiesel in the form of microchannel continuous flow

Method used

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  • Method for producing biodiesel by adopting microchannel reactor
  • Method for producing biodiesel by adopting microchannel reactor
  • Method for producing biodiesel by adopting microchannel reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Device used: high-throughput microchannel reactor (straight channel module + heart-shaped channel module), refer to image 3 Determine the connection mode of the microchannel reactor, the number of mixed reaction modules is determined according to the flow rate and reaction residence time, and the heat transfer medium is heat transfer oil.

[0039] (2) Raw material tanks 1 and 2 are equipped with waste oil and methanol solution (the amount of sodium hydroxide for catalysis is 1% of the weight of waste oil). Set the flow control of each metering pump 3 and pump 4 to change the molar ratio of waste oil:methanol solution=1:4, control the flow rate of waste oil: 1mL / min, control the flow rate of methanol solution: 10mL / min, and inject the materials into each straight-through In the channel preheating module, the reaction temperature is controlled to be 50°C and the pressure is 0.1MPa; the waste oil and methanol solution are pumped into the heart-shaped mixing module 8 o...

Embodiment 2

[0042] (1) Device used: high-throughput microchannel reactor (straight channel module + heart-shaped channel module), refer to image 3 Determine the connection mode of the microchannel reactor, the number of mixed reaction modules is determined according to the flow rate and reaction residence time, and the heat transfer medium is heat transfer oil.

[0043] (2) Raw material tanks 1 and 2 are equipped with waste oil and methanol solution (the amount of calcium hydroxide for catalysis is 1.5% of the weight of waste oil). Set the flow control of each metering pump 3 and pump 4 to change the molar ratio of waste oil:methanol solution=1:5, control the flow rate of waste oil: 2mL / min, control the flow rate of methanol solution: 10mL / min, and inject the materials into each straight-through In the channel preheating module, the reaction temperature is controlled to be 55°C and the pressure is 0.2MPa; the waste oil and methanol solution are pumped into the heart-shaped mixing module ...

Embodiment 3

[0046] (1) Device used: high-throughput microchannel reactor (straight channel module + heart-shaped channel module), refer to image 3 Determine the connection mode of the microchannel reactor, the number of mixed reaction modules is determined according to the flow rate and reaction residence time, and the heat transfer medium is heat transfer oil.

[0047] (2) Raw material tanks 1 and 2 are equipped with waste oil and methanol solution (the amount of potassium hydroxide for catalysis is 1.5% of the weight of waste oil). Set the flow control of each metering pump 3 and pump 4 to change the molar ratio of waste oil:methanol solution=1:6, control the flow rate of waste oil: 3mL / min, control the flow rate of methanol solution: 12mL / min, and inject the materials into each straight-through In the channel preheating module, the reaction temperature is controlled to be 60°C and the pressure is 0.4MPa; the waste oil and methanol solution are pumped into the heart-shaped mixing modul...

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Abstract

The invention discloses a method for producing biodiesel by adopting a microchannel reactor, belonging to the technical field of green renewable energy resources. The method is a novel technology for producing biodiesel products, and in the high-flux continuous-flow microchannel reactor, renewable energy resources such as animal and vegetable oil, waste oil and refined oil as well as methyl alcohol are taken as raw materials, and are subjected to transesterification in the microchannel reactor for a short reaction time of dozens of seconds or several minutes under the catalysis of alkali or acid to produce a biodiesel product. The materials enter the continuous-flow microchannel reactor through a metering pump, and are preheated, mixed and subjected to aftertreatment in a transesterification module to obtain the biodiesel product. The method has the advantages that the operation is simple and safe, and the biodiesel product can be continuously produced with a high yield, and besides, the environment pollution caused by the technology is greatly lowered.

Description

technical field [0001] The invention belongs to the technical field of green renewable energy, and specifically relates to using renewable resources such as animal and plant waste oil, acidified oil, gutter oil, and refined oil as raw materials, and methanol as raw materials, under the catalysis of alkali or acid, to react in a continuous flow microchannel In-vehicle transesterification reaction to produce biodiesel products. Background technique [0002] Biodiesel, or fatty acid methyl ester, is a good substitute for petroleum fuel. Biodiesel is mainly a renewable and environmentally friendly energy source and industrial raw material made from animal and vegetable oils or waste oils and refined oils. Biodiesel has become a high-quality substitute for petroleum diesel because of its unique renewability and environmental protection. It is considered to be one of the most ideal ways to solve the global energy crisis, relieve environmental pressure, and control air pollution. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/10C10L1/02
CPCC10L1/02C11C3/10Y02E50/10
Inventor 刘建武郭成张跃严生虎辜顺林马晓明沈介发
Owner NANJING UNIV OF TECH
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