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A kind of modified liquor lees-based activated carbon and preparation method thereof

A technology of white distiller's grains and activated carbon, which is applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve problems such as shortage, and achieve the effect of easy operation, simple method and suitable for industrial production.

Active Publication Date: 2021-04-13
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the existing reports on the use of distiller's grains to prepare biomass-based activated carbon, more activated carbon is directly obtained by high-temperature carbonization and then activated by KOH or water vapor, but there is a lack of a simple process for the preparation of distiller's grain-based activated carbon modified by nitrogen heteroatoms. The modification of nitrogen heteroatoms to treat activated carbon is an effective means to improve the catalytic activity or adsorption activity of activated carbon.

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  • A kind of modified liquor lees-based activated carbon and preparation method thereof
  • A kind of modified liquor lees-based activated carbon and preparation method thereof
  • A kind of modified liquor lees-based activated carbon and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029]A method of preparing a variable liquor basin activated carbon, including the following steps:

[0030](1) Use the pulverizer to block the dry white wine to 80 mesh, then we will weigh 10g white wine in N2High temperature carbonization of 800 ° C under atmosphere 1 h;

[0031](2) 2 g of potassium hydroxide is added to the hydrothermal reactor, and 15 ml of deionized water is added, and the ultrasonic dissolution is formed to form a homogeneous solution, then add 2g of white wine after carbonization, mix well, at 180 ° C After 20 h; after cooling the heat reactor is cooled to room temperature, filtrate and washed with deionized water, then dried in an oven at 100 ° C, preparing activated activated carbon after activation;

[0032](3) 1 g of activated activated carbon is placed in a temperature of 70 ° C, and the mass fraction is 0.1%.

[0033](4) After the impregnation is completed, the filtch is filtered and dried at 100 ° C, then at 850 ° C, N2Calcination of 1 h in the atmosphere.

[0034]T...

Embodiment 2

[0036]A method of preparing a variable liquor basin activated carbon, including the following steps:

[0037](1) Use a crusher to smash the dry white wine to 100 mesh, then we will weigh 10g white wine in N2High temperature carbonization of 700 ° C under atmosphere 1 h;

[0038](2) 2 g of potassium hydroxide is added to the hydrothermal reactor, and 15 ml of deionized water is added, and the ultrasonic dissolution is formed to form a homogeneous solution, then add 2g of white wine after carbonization, mix well, at 180 ° C The lower water is hot and reflecting 16 h; after cooling to room temperature, filtrate and washed with deionized water, then dried in an oven at a 100 ° C oven to prepare the activated activated carbon;

[0039](3) 1 g activated activated carbon is placed in a melamine solution having a temperature of 80 ° C and a mass fraction of 0.3%;

[0040](4) After the impregnation is completed, the filtch is filtered and dried at 100 ° C, then at 850 ° C, N2Calcination of 1 h in the at...

Embodiment 3

[0043]A method of preparing a variable liquor basin activated carbon, including the following steps:

[0044](1) Use the pulverizer to block the dry white wine to 100 ~ 150 mesh, then we will weigh 10g white wine in N2High temperature carbonization of 800 ° C under atmosphere 2h;

[0045](2) 2 g of potassium carbonate is added to the hydrothermal reaction kettle, and then 15 ml of deionized water, ultrasonic dissolution form a homogeneous solution, then add 2g carbonized white wine powder, mix well, under the conditions of 180 ° C Thermally reactive 16h; after cooling to room temperature, filtered and washed with deionized water, then dried in an oven at 100 ° C, and prepared activated activated carbon;

[0046](3) 1 g activated activated carbon is placed in a melamine solution of 80 ° C and a mass fraction of 0.4%;

[0047](4) After the impregnation is completed, filtch and dried at 100 ° C, then at 950 ° C, N2Calcination of 1 h in the atmosphere.

[0048]The resulting activated carbon is charact...

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Abstract

The invention discloses a modified distiller's grain-based activated carbon and a preparation method thereof. The method comprises the following steps: (1) pulverizing the dried distiller's grains, carbonizing the dried distiller's grains at 600-900° C. for 1-5 hours under a nitrogen atmosphere, then ultrasonically mixing it with an activator, performing hydrothermal reaction, filtering, washing and drying to obtain activation (2) Soak the activated carbon in a nitrogen source solution with a mass fraction of 0.01% to 0.5% for 3 hours, filter and dry it, and then calcinate it at 650 to 950°C for 1 to 5 hours under a nitrogen protective atmosphere to obtain a modified Activated carbon based on distiller's grains. The method of the invention is simple, easy to operate and suitable for industrial production, and the prepared modified white distiller's grains-based activated carbon has large specific surface area and rich pore structure properties, and exhibits excellent performance of adsorption and catalytic oxidation for removing organic pollutants in water bodies.

Description

Technical field[0001]The present invention belongs to the technical field of activated carbon preparation, and more particularly to a modified liquor basin activated carbon and a preparation method thereof.Background technique[0002]As a white wine country, my country has been rapidly developed in the liquor industry in recent years, and there is a lot of white wine in the process of liquor brewing. A large number of white wine is not only seriously occupied by limited land resources, but also causes pollution due to the rotten deterioration of alcohol, soil, surface water and groundwater. In addition, white wine is a secondary resource, and whose liquor is rich in nutrients such as crude protein, crude fiber, crude fat, starch and vitamin, and if it is not effective for resource utilization, it is also a serious waste of resources. Therefore, developing high-efficiency white wine resource utilization methods is the environmental issues common to liquor companies. At present, white w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/348C01B32/324C01B32/354
Inventor 邢波董静文杨郭刘兴勇叶宇玲莫莎宋翔张晶
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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