Microwave output energy controllable pyrolysis method and device of unit mass reactors

A technology of unit mass and output energy, applied in the field of biomass energy and oleochemical energy, which can solve the problems of insufficient research on microwave cracking furnace, affecting the quality of green chemicals, and temperature rise.

Inactive Publication Date: 2014-05-28
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The microwave pyrolysis reactor is the key to the technology of producing green chemicals from biomass pyrolysis. Although the microwave pyrolysis technology has made great progress, the research on microwave pyrolysis furnace is not enough.
After several generations of development, the microwave cracking furnace has integrated the advantages of rapid heating, good uniformity, and easy operation and control, but it has not yet realized the controllable cracking process of unit mass reactants absorbing micr...

Method used

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  • Microwave output energy controllable pyrolysis method and device of unit mass reactors

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 500g of dried eucalyptus oil saponification into the quartz reactor (6), and the quartz reactor (6) is connected to the gas storage cylinder (16) and the condenser (20) respectively, and the gas storage (inert gas or reducing gas) is adjusted ) the flow meter (17) of the steel cylinder (16) to the maximum opening, turn on the switch of the gas storage cylinder (16), adjust the valve to an appropriate opening, and flush the reaction system for 2 minutes. Adjust the temperature of the cooling water circulation system (20) to 0°C, and adjust the negative pressure system of the air pump (22) to 0.2 bar. Close the cracking furnace door, turn on the microwave cracking instrument switch (11), select the weight control mode through the LED display touch control panel (12), adjust the power to 1500W, and set the power-weight automatic adjustment program to 3W / g (each reduction in the mass of the reactant The microwave output power of 1g is reduced by 3W), the reaction time i...

Embodiment 2

[0022] Add 500g of dry tallow ester oil saponification into the quartz reactor (6), and the quartz reactor (6) is connected to the gas storage cylinder (16) and the condenser (20) respectively, and the gas storage (inert gas or reducing gas) is adjusted The flow meter (17) of the steel cylinder (16) reaches the maximum opening, open the switch of the gas storage cylinder (16), adjust the valve to an appropriate opening, and flush the reaction system for 2 minutes. Adjust the temperature of the cooling water circulation system (20) to 0°C, and adjust the negative pressure system of the air pump (22) to 0.2 bar. Close the pyrolysis furnace door, open the microwave pyrolysis instrument switch (11), select the weight control mode through the LED display touch control screen (12), adjust the power to 1500W, and set the power-weight automatic adjustment program to 4W / g (each reduction in the mass of the reactant The microwave output power of 1g is reduced by 4W), the reaction time i...

Embodiment 3

[0024] Add 200g of dry bagasse (after 10% phosphoric acid treatment) into the quartz reactor (6), and the quartz reactor (6) is connected to the gas storage cylinder (16) and the condenser (20) respectively, and adjust the gas storage (inert gas or reducing When the flow meter (17) of the steel cylinder (16) reaches the maximum opening, turn on the switch of the gas storage cylinder (16), adjust the valve to an appropriate opening, and flush the reaction system for 2 minutes. Adjust the temperature of the cooling water circulation system (20) to 0°C, and adjust the negative pressure system of the air pump (22) to 0.2 bar. Close the pyrolysis furnace door, open the microwave pyrolysis instrument switch (11), select the weight control mode through the LED display touch control screen (12), adjust the power to 2000W, set the power-weight automatic adjustment program to 10W / g (each reduction in the mass of the reactant The microwave output power of 1g is reduced by 10W), the react...

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Abstract

The invention relates to a microwave output energy controllable pyrolysis method and a device of unit mass reactors. According to the method, microwave power is reduced via automatic control with the reduction of reaction matter amount and prolonging of reaction time, and the constant unit mass microwave output energy of the reactors in a whole pyrolysis process is ensured. The device comprises a microwave cavity, a microwave generator, a mass measurement system, a temperature measurement system, a PLC (Programmable Logic Controller) real-time data acquisition control system, a system for displaying an image of a material in the cavity in real time, a background computer configuration software acquisition and control system, a condensing system and a negative pressure system. The device is high in automation degree and easy and simple to operate, with the adoption of the device and the method, high quality hydrocarbon fuel, green chemicals and the like pyrolyzed by the various reactors under the optimal microwave condition can be obtained, and the reactors have industrial application prospects.

Description

technical field [0001] The invention belongs to the fields of biomass energy and oleochemical energy. Background technique [0002] In the reaction system of traditional pyrolysis oil crops, the temperature difference between various parts of the material is extremely large, and there is no material basis for preferential heat supply to polar functional groups in the heat transfer process. Therefore, the break order of chemical bonds in the traditional pyrolysis process is random and unpredictable. Microwave Assisted Pyrolysis (MAP) can significantly improve the catalytic orientation of biomass cracking, so that the cracked products show good selectivity. [0003] Microwave pyrolysis reactor is the key to the technology of biomass pyrolysis to prepare green chemicals. Although microwave pyrolysis technology has made great progress, the research on microwave pyrolysis furnace is not enough. After several generations of development, the microwave cracking furnace has integrat...

Claims

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Application Information

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IPC IPC(8): B01J19/12
Inventor 王允圃刘玉环阮榕生
Owner NANCHANG UNIV
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