Process for producing active carbon

A technology of activated carbon and carbonization, which is applied in the field of activated carbon preparation, can solve problems such as waste of resources and environmental problems, achieve the effects of low content of harmful elements, good adsorption performance, and solve the problems of waste of resources and environmental pollution

Inactive Publication Date: 2009-08-19
南雄市青松环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nanxiong, Guangdong has been the hometown of yellow tobacco since ancient times. It has a long history of tobacco planting. Tobacco leaf planting is well-known throughout the country and has always been the main source of financial revenue in Nanxiong an

Method used

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  • Process for producing active carbon
  • Process for producing active carbon
  • Process for producing active carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, utilize tobacco rod to produce activated carbon for sewage treatment

[0031] 1. Crush 1000g of tobacco rod sample 1 to a particle size of 4-6 mm.

[0032] 2. Drying the crushed tobacco rod particles.

[0033] 3. Carbonize the dried tobacco rod particles, the final temperature of carbonization is 600° C., and the carbonization time is 45 minutes to obtain a carbonized product. Calculate the carbonization yield (carbonization yield = carbonization product mass / tobacco rod sample mass × 100%) and the performance index of the carbonization product (standard number: GB / T212-2001), and the results are shown in Table 3.

[0034] 4. Activate the carbonized product, the activation temperature is 800°C, and the activation time is 5 minutes to obtain activated carbon. Calculate the activated carbon yield (activated carbon yield=activated carbon quality / carbonized product quality×100%") and the performance index of activated carbon. The results are shown in Table 4 a...

Embodiment 2

[0035] Embodiment 2, utilize tobacco rod to produce activated carbon for sewage treatment

[0036] 1. Same as step 1 in Example 1.

[0037] 2. Same as step 2 of embodiment 1.

[0038] 3. Carbonize the dried tobacco rod particles, the final temperature of carbonization is 650° C., and the carbonization time is 40 minutes to obtain a carbonized product. Calculate the carbonization yield and the performance index of the carbonization product, and the results are shown in Table 3.

[0039] 4. Activate the carbonized product, the activation temperature is 800°C, and the activation time is 8 minutes to obtain activated carbon. Calculate the activated carbon yield and the performance index of activated carbon. The results are shown in Table 4 and Table 5.

Embodiment 3

[0040] Embodiment 3, utilize tobacco rod to produce activated carbon for sewage treatment

[0041] 1. Same as step 1 in Example 1.

[0042] 2. Same as step 2 of embodiment 1.

[0043] 3. Carbonize the dried tobacco rod particles, the final temperature of carbonization is 700° C., and the carbonization time is 35 minutes to obtain a carbonized product. Calculate the carbonization yield and the performance index of the carbonization product, and the results are shown in Table 3.

[0044] 4. Activate the carbonized product, the activation temperature is 800°C, and the activation time is 10 minutes to obtain activated carbon. Calculate the activated carbon yield and the performance index of activated carbon. The results are shown in Table 4 and Table 5.

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Abstract

The invention discloses a method for preparing active carbon. The method for preparing the active carbon comprises the following steps: 1) carbonizing crushed and dried tobacco rods to obtain carbonized products; and 2) physically activating the carbonized products to obtain the active carbon. The active carbon prepared by the method has good adsorptivity and low content of harmful substances, and can be used for sewage treatment and decolorization of chemical products, foods and medicaments because various indexes of the active carbon accord with the national standard. In addition, the method utilizes the tobacco rods as a raw material, solves the problems of resource waste and environmental pollution due to the fact that the tobacco rods are discarded and burnt, and is of great significance.

Description

technical field [0001] The invention relates to a preparation method of activated carbon. Background technique [0002] Activated carbon began to be produced industrially in the early twentieth century. In the First World War, activated carbon was widely used as a military protective agent, which promoted the formation of industrial scale production of activated carbon. After the Second World War, especially since the 1960s when the world economy began to develop rapidly, as a kind of carbon fiber with rich pore structure, huge specific surface area, good chemical stability, strong adsorption performance and durability Activated carbon has been widely used in almost all modern industrial sectors, and its production scale, production process, and production raw materials have greatly developed. After entering the 1980s, with the continuous improvement of people's quality of life and the increasing emphasis on environmental quality and sustainable development around the worl...

Claims

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Application Information

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IPC IPC(8): C01B31/08
Inventor 梁大明孙仲超董卫果邓一英李兰廷王鹏刘春兰李雪飞文芳国晖李艳芳熊银武
Owner 南雄市青松环保材料有限公司
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