Preparation method of biomass porous carbon

A technology of porous carbon and biomass, applied in the direction of carbon preparation/purification, which can solve the problems of poor porosity of biomass porous carbon

Inactive Publication Date: 2018-12-21
FOSHAN SENANG BIO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: Aiming at the problem of poor porosity of traditional biomass porous carbon, a preparation method of biomass porous carbon is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022]Put zeolite and ferric chloride solution with a mass fraction of 20% in a No. 1 beaker at a mass ratio of 1:20, stir and mix for 60 minutes at a speed of 600r / min, and then add a mass fraction of 30% to No. 1 beaker % sodium hydroxide solution to adjust the pH to 10.8, under the condition of 600r / min at a rotating speed, stir and mix for 60min to obtain a mixed slurry, then filter the mixed slurry to obtain a filter cake, then use deionized water to wash the filter cake 5 times, Then the washed filter cake was placed in an oven, and dried to a constant weight at a temperature of 110°C to obtain a dry filter cake, and then the dried filter cake was placed in a muffle furnace, and at a temperature of 850°C, Treat at high temperature for 3 hours to obtain the modified additive; put the gum arabic and water in the No. 2 beaker at a mass ratio of 1:100, stir with a glass rod for 20 minutes, let it stand for swelling for 5 hours, and place the No. 2 beaker on the digital displa...

example 2

[0024] Put zeolite and ferric chloride solution with a mass fraction of 20% in a No. 1 beaker at a mass ratio of 1:20, stir and mix for 60 minutes at a speed of 600r / min, and then add a mass fraction of 30% to No. 1 beaker % sodium hydroxide solution to adjust the pH to 10.8, under the condition of 600r / min at a rotating speed, stir and mix for 60min to obtain a mixed slurry, then filter the mixed slurry to obtain a filter cake, then use deionized water to wash the filter cake 5 times, Then the washed filter cake was placed in an oven, and dried to a constant weight at a temperature of 110°C to obtain a dry filter cake, and then the dried filter cake was placed in a muffle furnace, and at a temperature of 850°C, Treat at high temperature for 3 hours to obtain the modified additive; put the gum arabic and water in the No. 2 beaker at a mass ratio of 1:100, stir with a glass rod for 20 minutes, let it stand for swelling for 5 hours, and place the No. 2 beaker on the digital displ...

example 3

[0026] Put zeolite and ferric chloride solution with a mass fraction of 20% in a No. 1 beaker at a mass ratio of 1:20, stir and mix for 60 minutes at a speed of 600r / min, and then add a mass fraction of 30% to No. 1 beaker % sodium hydroxide solution to adjust the pH to 10.8, under the condition of 600r / min at a rotating speed, stir and mix for 60min to obtain a mixed slurry, then filter the mixed slurry to obtain a filter cake, then use deionized water to wash the filter cake 5 times, Then the washed filter cake was placed in an oven, and dried to a constant weight at a temperature of 110°C to obtain a dry filter cake, and then the dried filter cake was placed in a muffle furnace, and at a temperature of 850°C, Treat at high temperature for 3 hours to obtain the modified additive; put the gum arabic and water in the No. 2 beaker at a mass ratio of 1:100, stir with a glass rod for 20 minutes, let it stand for swelling for 5 hours, and place the No. 2 beaker on the digital displ...

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Abstract

The invention discloses a preparation method of biomass porous carbon, which belongs to the technical field of a functional material. The preparation method comprises the following steps: mixing and ball milling vinasse, starch and glycerin, and obtaining ball milled uniform slurry; mixing and fermenting the ball milled uniform slurry, cryolite, modified additives, Carbomer, gum Arabic solution, adding aluminum chloride solution which is 0.2 to 0.3 times of the mass of the ball milled homogenous slurry, stirring and mixing, dropwise adding a sodium hydroxide solution, adjusting pH to 10.3 to 10.6, drying, pulverizing, screening, and obtaining a blank; gradually heating the blank in a nitrogen atmosphere, electrifying, reacting at the high temperature, cooling, and obtaining a carbonized blank; and mixing the carbonized blank and water according to a mass ratio of (1:10) to (1:20), soaking the carbonized blank, filtering, and drying, thus obtaining the biomass porous carbon. The biomassporous carbon provided by the invention has excellent specific surface area and porosity.

Description

technical field [0001] The invention discloses a preparation method of biomass porous carbon, which belongs to the technical field of functional materials. Background technique [0002] Biochar (Biochar) refers to biomass solids rich in carbon elements, which are produced by pyrolysis in a specific reaction device at a certain temperature (such as 350-700 ° C) in an isolated air or a small amount of air atmosphere. [0003] The pyrolysis of biochar has a long history of thousands of years. The formation of biochar is mainly its own pyrolysis. The pyrolysis of biochar can be divided into fast rate pyrolysis and slow rate pyrolysis, which mainly depends on the heating rate. Fast pyrolysis refers to the reaction of biomass in an oxygen-free environment, at 400-600 °C, with a heating rate greater than 300 °C / min and a short gas atmosphere. During this reaction process, bio-oil with high energy density, syngas and biochar with relatively low energy density are mainly produced....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05
CPCC01B32/05
Inventor 胡次兵兰梅菊朱东东
Owner FOSHAN SENANG BIO TECH CO LTD
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