Coconut Shell Based Activated Carbon

Activated carbon based on coconut shell is the least dusty. They are primarily microporous and are ideal for organic chemisorption. Coconut shell based carbon has the highest hardness compared to other types of activated carbon, making it an ideal carbon for water purification.
Product Details

coconut shell based activated carbon:

Activated carbon based on coconut shell is the least dusty. They are primarily microporous and are ideal for organic chemisorption. Coconut shell based carbon has the highest hardness compared to other types of activated carbon, making it an ideal carbon for water purification.

In terms of basic materials, coconut shells and wood are renewable resources. Coconut plantations with millions of acres continue to provide all the benefits of green trees to our environment, despite the use of billions of coconut shells per year for activation.

Specification

Golden Carbon

Item no.

HNGC-A

HNGC-B

Iodine Value (mg/g) ≥

1000

900

Hardness (%) ≥

97

93

PH

7-10

7-10

Moisture (%) ≤

10

10

Ash content (%) ≤

5

5

Bulk Density (g/l)

480+/-50

480+/-50

Fe content (%) ≤

0.1

0.1

Mesh size (selected)

4-60

4-60


Activated carbon is produced in a two-step process from coconut shells:

The first step in activation is to carbonize the shell, driving approximately two-thirds of the volatiles out of the shell to form a microporous carbonaceous material.

In the second stage, this carbonized base material is activated in steam at high temperatures (1,100 ° C / 2, 012 ° F). The activation temperature and activation time are important for creating an internal pore network and imparting certain surface chemistries (functional groups) within each particle. In essence, the total activation process imparts unique adsorption characteristics to the carbon.


Current carbonization process:

The carbonization process converts coconut shells into charcoal or charcoal.

The carbonization process (manufacture of charcoal) is called pyrolysis, which is a chemical decomposition of the shell by heating in the absence of oxygen.

During the carbonization of the coconut shell, 70% of the volatile matter equivalent to the mass of the coconut shell is released into the atmosphere, producing 30% of the coconut shell mass as charcoal. The volatiles released during the carbonization process are methane, carbon dioxide, water vapor and various organic vapors.


Precautions:

1. The coconut shell activated carbon is prevented from being mixed with hard materials during transportation. It is not allowed to step on or step on to prevent the carbon particles from breaking and affecting the quality.
2. Storage should be stored in porous adsorbent, so water immersion should be absolutely prevented during transportation, storage and use. After water immersion, a large amount of water is filled with active voids, making it useless.
3.coconut shell activated carbon to prevent tar substances in the use process, should prohibit the tar substances into the activated carbon bed, so as not to block the activated carbon gap, so that it loses its adsorption. It is best to have a decoking device to purify the gas.
4. When the fire-activated activated carbon is stored or transported, it should be prevented from direct contact with the fire source to prevent oxygen from entering the fire and regeneration when the activated carbon is regenerated. The steam must be cooled to below 80 °C after regeneration. Otherwise, the temperature is high and oxygen is encountered. Activated carbon spontaneous combustion.


Adsorption performance:
When the coconut shell activated carbon contains moisture or the circulating gas is wet, the adsorption rate of the coconut shell activated carbon to the organic solvent generally decreases. However, by using coconut shell activated carbon which can maintain a considerable adsorption capacity in a wet state, it can be used for recycling under the conditions which have not been suitable for recycling, and can also save water vapor. In particular, in the case where the solvent which is likely to generate heat due to oxidation or decomposition is recovered, the humidification treatment of the adsorbed gas can suppress the temperature rise of the coconut shell activated carbon layer, suppress the occurrence of the reaction, and prevent ignition. This has become an important condition for the selection of coconut shell activated carbon. The dry coconut shell activated carbon and the wet coconut shell activated carbon adsorption acetone adsorption curve is different; penetration time is also one of the most sensitive indicators of coconut shell activated carbon adsorption capacity.

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