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Method and device for producing super active carbon

A production device and production method technology, which are applied in the field of super activated carbon production methods and production devices, can solve problems such as affecting the stability of super activated carbon production process, super activated carbon quality, unfavorable KOH reuse, affecting KOH purity, etc., so as to eliminate potential safety hazards. , The pore structure is developed, and the effect of increasing the activation pressure

Active Publication Date: 2012-12-12
浙江瑞能炭材料科技有限公司
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Problems solved by technology

However, the added activation aid and its thermal decomposition products will be brought into the filtrate during the process of washing the activation material, which will significantly affect the purity of the recovered KOH, which is not conducive to the reuse of KOH, and affects the entire super activated carbon production process. Stability and Quality of Super Activated Carbon

Method used

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  • Method and device for producing super active carbon
  • Method and device for producing super active carbon
  • Method and device for producing super active carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 and figure 2 Shown, a kind of production device of super active carbon of the present invention, it comprises activation furnace body 1, reaction vessel 2, pressure control system 4, temperature control system 3, air intake system 20 and condensation pipe 5.

[0043] The reaction vessel 2 is placed in the activation furnace body 1 . The reaction vessel 2 is made of nickel material.

[0044] The activation furnace body 1 is connected to the pressure control system 4 , the temperature control system 3 and the air intake system 20 respectively. The intake system 20 includes an inert gas supply system 6 and an air supply system 7, which can realize the intake switch between inert gas and air.

[0045] The activation furnace body 1 is provided with a furnace front cover at the air inlet 11, and a furnace rear cover at the gas outlet 15 place. The activation furnace body 1, the furnace front cover and the furnace rear cover are made of alkali-resistant s...

Embodiment 2

[0050] Petroleum coke and KOH were mixed in a weight ratio of 1:4, and then put into a reaction vessel 2 made of nickel. Then open the circulating condensed water in the cooling part 16 of the sealing ring and the circulating condensed water in the condenser pipe 5, and feed nitrogen gas to raise the temperature to 400° C. at a heating rate of 5 K / min, and keep the temperature constant for 2 hours. Start to adjust the pressure control valve 9 to make the pressure in the tank reach 3 atmospheres, then rise to 750°C at a heating rate of 3K / min, and activate for 2 hours. Then cool down to below 150°C under the condition of feeding nitrogen, then switch nitrogen to air, and continuously pass air into the furnace body for more than 2 hours. After the temperature in the furnace body drops to above 100°C, open the front cover of the furnace and push out the reaction Container 2, take out the activation material. Wash the activation material with water, and rinse the furnace front co...

Embodiment 3

[0052] Petroleum coke and KOH were mixed in a weight ratio of 1:4, and then put into a reaction vessel 2 made of nickel. Then turn on the circulating condensed water in the cooling part 16 of the sealing ring and the circulating condensed water in the condensation pipe 5, and feed nitrogen gas to raise the temperature to 500° C. at a heating rate of 5 K / min, and keep the temperature constant for 1 hour. Start to adjust the pressure control valve 9 to make the pressure in the tank reach 2 atmospheres, then rise to 700°C at a heating rate of 3K / min, and activate for 3 hours. The technological processes such as subsequent cooling, ventilation and washing recovery of KOH, determination of KOH solution concentration, post-treatment of activated carbon are the same as in Example 2. The results of the KOH recovery rate and the pore structure test of activated carbon are shown in Table 1. With the treatment method and device of the present invention, no elemental potassium is found i...

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Abstract

The invention discloses a method for producing super active carbon. The method comprises the following steps of: mixing a carbon raw material and KOH and continuously introducing an inert gas into a reaction system; raising the temperature of the reaction system to 400 to 500 DEG C, adjusting reaction pressure to be 2 to 8 atmospheric pressures and continuously heating to activation temperature; cooling the reaction system to below 150 DEG C after the activation is finished, stopping introduction of the inert gas and continuously introducing air; and after the reaction system is cooled to below 100 DEG C, taking the activated material out and dissolving KOH and K2O in the activated material with water to realize recovery of KOH. The invention also discloses a device used by the productionmethod. By using the method and the device, the problem of serious production safety caused by production and releasing of monomer potassium in the process of producing the super active carbon by KOHactivation can be solved, so that industrial production of the super active carbon by applying the KOH activation method comes true.

Description

technical field [0001] The invention belongs to the technical field of chemical production, and in particular relates to a key technology for safe production of super activated carbon produced by a KOH activation method, that is, a production method and a production device of super activated carbon. Background technique [0002] Activated carbon is a kind of highly developed pore structure and high specific surface area (usually 800 ~ 1500m 2 / g) excellent carbonaceous adsorbent, has been widely used in many fields such as environmental protection, chemical industry, food and military industry. Super activated carbon is a kind of specific surface area greater than 2000m 2 / g of new porous carbon materials, it has broad application prospects in the fields of super electric double layer capacitor electrode materials, catalyst supports, gas separation, hydrogen and natural gas storage materials. Therefore, super activated carbon has become a new type of carbon material that h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/12
Inventor 左宋林杨建校
Owner 浙江瑞能炭材料科技有限公司
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