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A kind of preparation method of activated carbon for tobacco, activated carbon for tobacco and application

A technology for activated carbon and cigarettes, which can be used in applications, tobacco, and smoke oil filters, etc. It can solve the problems of unfavorable respiratory health, excessive dust, and high gray level, and achieve significant adsorption capacity, high-efficiency and high-quality environment, and low cost.

Active Publication Date: 2020-01-10
CHINA TOBACCO GUANGDONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, activated carbon prepared from woody raw materials generally has the disadvantages of high grayscale and high dust. When used as activated carbon for tobacco, it will cause smokers to inhale additional activated carbon dust, which is not conducive to respiratory health.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The jute stalks are washed, dried, and carbonized by dry distillation, and pulverized to obtain jute stalk particles, 0.126mm≦particle size≦0.55mm.

[0038] Put 120g of jute stalk carbonized particles in a 1000ml ceramic evaporating dish, and place the ceramic evaporating dish containing jute stalk charcoal particles in the middle of the muffle furnace, and use the intelligent temperature controller Controller B180 to control the activation temperature at 800°C. The steam generated by the generator is 200g.h -1 The flow is sent into the muffle furnace, and after 2 hours of activation, the discharge is sealed and cooled.

[0039] The iodine adsorption value of the prepared activated carbon: 1054mg.g -1 ; Methylene blue adsorption value: 161.7mg.g -1 ; Phenol adsorption value: 180.73mg.g -1 ; Specific surface area: 958.51m 2 .g -1 ;Activation rate: 40.6%; Strength: 91.88%; Apparent density: 0.30g.Ml -1 ; Ash content: 4.57; Moisture: 5.00%; PH value: 7.69.

Embodiment 2

[0041] The jute stalks are washed, dried, and carbonized by dry distillation, and pulverized to obtain jute stalk particles, 0.126mm≦particle size≦0.55mm.

[0042] Put 120g of jute stalk carbonized particles in a 1000ml ceramic evaporating dish, and place the ceramic evaporating dish containing jute stalk charcoal particles in the middle of the muffle furnace, and use the intelligent temperature controller Controller B180 to control the activation temperature at 850°C. The steam generated by the generator is 200g.h -1 The flow is sent into the muffle furnace, and after 2 hours of activation, the discharge is sealed and cooled.

[0043] The iodine adsorption value of the prepared activated carbon is: 1062mg.g -1 ; Methylene blue adsorption value: 165.41mg.g -1 ; Phenol adsorption value: 189.03mg.g -1 ; Specific surface area: 966.43m 2 .g -1 ;Activation rate: 41.2%; Strength: 92.38%; Apparent density: 0.30g.Ml -1 ; Ash content: 4.58; Moisture: 5.01%; PH value: 7.69.

Embodiment 3

[0045]The jute stalks are washed, dried, and carbonized by dry distillation, and pulverized to obtain jute stalk particles, 0.126mm≦particle size≦0.55mm.

[0046] Put 120g of jute stalk carbonized particles in a 1000ml ceramic evaporating dish, and place the ceramic evaporating dish containing jute stalk charcoal particles in the middle of the muffle furnace, and use the intelligent temperature controller Controller B180 to control the activation temperature at 900°C. The steam generated by the generator is 200g.h -1 The flow is sent into the muffle furnace, and after 2 hours of activation, the discharge is sealed and cooled.

[0047] The iodine adsorption value of the prepared activated carbon: 1060mg.g -1 ; Adsorption value of methylene blue: 164.36mg.g -1 ; Phenol adsorption value: 188.62mg.g -1 ; Specific surface area: 964.9m 2 .g -1 ;Activation rate: 41.0%; Strength: 92.42%; Apparent density: 0.30g.Ml -1 ; Ash content: 4.61; Moisture: 4.99%; PH value: 7.70.

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Abstract

The invention discloses a preparation method of an activated carbon for cigarettes and a product of the activated carbon for cigarettes and an application. According to the method, a jute rod is used as a raw material, the jute rod is carbonized and then pulverized into granules, under water vapor with flow rate of 450-480 g / h, after activation for 1-3 hours at 800-900 DEG C, the activated carbon for cigarettes is obtained after discharging, sealing and cooling. As the result shows, the activation rate of the activated carbon for the cigarettes obtained by the method can reach 47%, specific surface area is 996.38 m<2> / g, strength is 92.7f%, apparent density is 0.32g / Ml, ash content is 4.31, and water content is 5.12%, pH value is 7.67, which all reach or exceed national tobacco industry standard for the activated carbon for cigarettes; besides, the activated carbon has high iodine adsorption value (1184mg / g), methylene blue adsorption value (195.88 mg / g) and phenol adsorption value (202.04mg / g), and excellent pore structure, and is especially beneficial for removal of harmful gases in small molecules of the cigarettes.

Description

technical field [0001] The invention relates to the field of functional materials used in cigarette filter rods, and more specifically, to a preparation method of activated carbon for tobacco, activated carbon for tobacco and its application. Background technique [0002] Adding activated carbon to cigarette filters can absorb non-condensable gas-phase harmful components, such as acetaldehyde, benzene, toluene, isoprene, etc., reduce the harm of harmful components in smoke to human health, and improve the quality of cigarettes. Pumping quality. my country is a big country in the production and consumption of cigarettes. Activated carbon filter cigarettes can greatly improve the filtering effect on smoke and reduce harmful components in smoke. It is also easy to be accepted by consumers, and the cigarette industry will gradually become a huge potential market for activated carbon. [0003] Activated carbon for tobacco refers to the physical activated carbon added during the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/16
CPCA24D3/163
Inventor 罗朝觉金劲松
Owner CHINA TOBACCO GUANGDONG IND
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