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Method for preparing formed activated carbon by taking thermal cracking carbon as raw material

A technology of shaped activated carbon and pyrolysis, applied in the field of biomass energy, can solve problems such as agglomeration, low activation efficiency, and uneven activation, and achieve the effects of improving the ecological environment, shortening the operation process, and expanding the field of raw materials

Inactive Publication Date: 2017-01-04
承德绿世界活性炭有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, activated carbon production equipment is mainly suitable for granular or massive raw materials. When used for direct activation of powdered raw materials, problems such as agglomeration, uneven activation, and low activation efficiency are prone to occur. There is still a lack of reasonable methods for a large number of powdered raw materials. use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Pine sylvestris pyrolysis charcoal was refluxed and extracted for 5 hours using dichloromethane pure solvent at a temperature of 45° C. to remove residual pyrolysis oil in sylvestris sylvestris pine pyrolysis charcoal, and then at a concentration of 1mol / Soak in a hydrochloric acid solution of L, the temperature is 65°C, stir for 1 hour, stop heating, continue stirring for 1.5 hours, finally wash with deionized water until neutral, dry at 95°C for 2 hours, and obtain pretreated camphor. Pine pyrolysis charcoal;

[0026] (2) Mix the pretreated pine pyrolysis carbon, pyrolysis oil phenolic resin binder and water according to the following mass percentages: pretreatment pyrolysis carbon: 80%, binder: 15%, water 5%, and the mixing temperature is 25°C, the mixing process is: add the metered water to the metered pyrolysis oil phenolic resin binder, fully stir, mix evenly, obtain a diluted resin, add the diluted resin to the metered pretreated pyrolysis carbon, fully Aft...

Embodiment 2

[0029] (1) At a temperature of 55° C., poplar pyrolysis charcoal was refluxed and extracted with dichloromethane pure solvent for 4.5 hours to remove residual pyrolysis oil in poplar pyrolysis charcoal, and then in a concentration of 2mol / L Soak in hydrochloric acid solution at 75°C, stir for 0.5 hours, stop heating, continue stirring for 2 hours, finally wash with deionized water until neutral, dry at 100°C for 2 hours to obtain pretreated poplar wood thermal cracking carbon;

[0030](2) Mix the obtained pretreated poplar pyrolysis charcoal, pyrolysis oil phenolic resin binder and water according to the following mass percentages: pretreatment pyrolysis charcoal: 75%, binder: 20%, water 5%, mixing temperature The temperature is 30°C, and the mixing process is as follows: add the metered water into the metered pyrolysis oil phenolic resin binder, fully stir and mix evenly to obtain a diluted resin, and add the diluted resin to the metered pretreated pyrolysis carbon, Mixed ra...

Embodiment 3

[0033] (1) Reflux extraction of straw pyrolysis charcoal at 60°C with dichloromethane pure solvent for 6 hours to remove residual pyrolysis oil in straw pyrolysis charcoal, Soak in the solution at a temperature of 60°C, stir for 1 hour, stop heating, continue stirring for 3 hours, finally wash with deionized water until neutral, dry at 85°C for 2 hours, and obtain pretreated straw pyrolysis charcoal;

[0034] (2) Mix the obtained pretreated straw pyrolysis charcoal, pyrolysis oil phenolic resin binder and water according to the following mass percentages: pretreatment pyrolysis charcoal: 85%, binder: 10%, water 5%, and the mixing temperature is 27°C, the mixing process is: add the metered water to the metered pyrolysis oil phenolic resin binder, fully stir, mix evenly to obtain a diluted resin, add the diluted resin to the metered pretreated pyrolysis carbon, and fully After mixing, the mixed raw materials were obtained. The solid content of the pyrolysis oil phenolic resin bi...

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Abstract

The invention relates to a method for preparing formed activated carbon by taking thermal cracking carbon as a raw material and belongs to the technical field of biomass energy. A raw material source of the formed activated carbon is byproduct thermal cracking carbon coming from the agriculture and forestry biomass quick thermal cracking liquidation process, and an adhesive is a pyrolytic oil phenol-formaldehyde resin adhesive prepared by taking pyrolytic oil to replace part of phenol. The method further expands the raw material field of activated carbon, a new direction is opened up for the application of the thermal cracking carbon, and the formed activated carbon prepared by utilizing the method is compact in structure, has high mechanical strength and excellent adsorption performance and can be widely applied to the fields of liquid and gas purification, solvent recycling and food decoloration and the like.

Description

technical field [0001] The invention relates to a method for preparing shaped activated carbon by using pyrolysis carbon as a raw material, and belongs to the technical field of biomass energy. Background technique [0002] Activated carbon has a very rich internal pore structure and developed specific surface area. Due to its excellent adsorption performance, stable chemical properties, high mechanical strength and easy regeneration, it is widely used in the purification of liquids and gases, solvent recovery, Food decolorization and other fields. At present, activated carbon production equipment is mainly suitable for granular or massive raw materials. When used for direct activation of powdered raw materials, problems such as agglomeration, uneven activation, and low activation efficiency are prone to occur. There is still a lack of reasonable methods for a large number of powdered raw materials. use. Therefore, it is of great significance to explore the preparation of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/10C01B31/08
Inventor 常建民李露霏韩利平虞宇翔邢靖晨司慧王毅
Owner 承德绿世界活性炭有限公司