Regenerated activated carbon and preparation method thereof

A living activated carbon and activated carbon technology, applied in the field of regenerated activated carbon and its preparation, can solve the problems of decreased adsorption performance of activated carbon, unfavorable environmental sustainable development, high cost consumption, etc.

Pending Publication Date: 2021-04-02
德清县联新环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the thermal regeneration method has become the most widely used regeneration method due to its advantages of high efficiency, uniform heating, thorough regeneration, and simple operation. The pore structure and adsorption performance of activated carbon will be gre

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A regenerated activated carbon is prepared by mixing 7.5kg of binder, 22.5kg of pore-forming agent, 2.75kg of surfactant, and 70kg of activated carbon particles.

[0026] Wherein, the binder is a mixture of an organic binder and an inorganic binder, and the weight of the organic binder:the weight of the inorganic binder=2:1.

[0027] The above-mentioned inorganic binders are metal oxides.

[0028] The metal oxide mentioned above is calcium oxide.

[0029] The above-mentioned organic binder is polylactic acid.

[0030] Among them, the median particle size of activated carbon particles in the formula system of regenerated activated carbon is 45 μm.

[0031] Wherein, the pore forming agent is ammonium carbonate.

[0032] Wherein, the surfactant in the formulation system of the regenerative activated carbon is coconut oil.

[0033] According to above-mentioned formula, the preparation method of a kind of regenerative activated carbon of the present invention comprises t...

Embodiment 2

[0042] A regenerated activated carbon is prepared by mixing 5kg of binder, 5kg of pore-forming agent, 0.5kg of surfactant, and 50kg of activated carbon particles.

[0043] Wherein, the binder is a mixture of an organic binder and an inorganic binder, and the weight of the organic binder:the weight of the inorganic binder=1:1.

[0044] The above-mentioned inorganic binders are metal oxides.

[0045] The aforementioned metal oxide is magnesium oxide.

[0046] The above organic binder is poly 3-hydroxybutyric acid.

[0047] Among them, the median particle size of activated carbon particles in the formulation system of regenerated activated carbon is 30 μm.

[0048] Wherein, the pore forming agent is ammonium bicarbonate.

[0049] Wherein, the surfactant in the formulation system of the regenerated activated carbon is sodium dodecylsulfonate.

[0050] According to above-mentioned formula, the preparation method of a kind of regenerative activated carbon of the present inventio...

Embodiment 3

[0059] A regenerated activated carbon is prepared by mixing 10kg of binder, 40kg of pore-forming agent, 5kg of surfactant, and 90kg of activated carbon particles.

[0060] Wherein, the binder is a mixture of an organic binder and an inorganic binder, and the weight of the organic binder:the weight of the inorganic binder=3:1.

[0061] The above-mentioned inorganic binders are metal oxides.

[0062] The metal oxide mentioned above is ferric oxide.

[0063] The above-mentioned organic binder is konjac glucomannan.

[0064] Among them, the median particle size of activated carbon particles in the formulation system of regenerated activated carbon is 60 μm.

[0065] Wherein, the pore-forming agent is a mixture of ammonium carbonate and ammonium bicarbonate, wherein the ratio of the weight of ammonium carbonate to the weight of ammonium bicarbonate is 1:1.

[0066] Wherein, the surfactant in the formulation system of the regenerated activated carbon is a mixture of coconut oil a...

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Abstract

The invention belongs to the technical field of activated carbon preparation, and provides regenerated activated carbon and a preparation method thereof, wherein the regenerated activated carbon is prepared by mixing a binder, a pore-forming agent, a surfactant and activated carbon particles. The metal oxide contained in the regenerated activated carbon can react with water vapor in the preparation process of the activated carbon to generate alkaline substances, the alkaline substances serve as catalysts, the activation reaction speed of carbon particles can be increased, the time of the activation stage is shortened, formation of activated carbon pores can be promoted, and the number of the activated carbon pores is increased. The metal ions can also increase functional groups on the surface of the activated carbon, and the surfactant is added, so that the mechanical strength of coal columnar carbon is improved, the ash content is reduced, and the adsorption capacity is increased.

Description

technical field [0001] The invention belongs to the technical field of activated carbon preparation, and in particular relates to a regenerated activated carbon and a preparation method thereof. Background technique [0002] Activated carbon is considered to be an efficient adsorption material because of its well-developed pore structure, low toxicity, large specific surface area, and good stability. It has a wide range of applications in environmental protection, medicine, chemical industry, gold extraction, nanomaterials, high-efficiency catalysts and other fields. However, the use cost of the waste activated carbon after adsorption is high. If the activated carbon that reaches the adsorption saturation is discarded without treatment, it will not only greatly limit the application range of activated carbon, but also cause waste of resources and secondary pollution. . Therefore, the development of regeneration technology for adsorption saturated activated carbon has impor...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30
CPCB01J20/20B01J20/3042B01J20/3064B01J20/3078
Inventor 褚奇奇
Owner 德清县联新环保科技有限公司
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