Where does activated carbon come from?

Activated carbon is not a natural mineral; it is "manufactured."

The activated carbon we encounter is an artificial adsorbent material derived entirely from carbon-containing organic precursors, produced through a series of industrial processes such as high-temperature carbonization and activation.

Currently, the mainstream raw materials used in industry are primarily categorized into the following types:

1. Wood-based Raw Materials:

The primary raw materials are: Wood chips, sawdust, wood shavings, wood scraps, firewood, bamboo, coconut shells, walnut shells, apricot shells, and other fruit shells.

Characteristics: Low ash content and minimal impurities; readily forms a well-developed microporous structure, making it suitable for use in water purification, food decolorization, and high-end purification applications.

Among these, coconut shell activated carbon—owing to its high strength and excellent adsorption properties—is the preferred choice for gold extraction and high-end water treatment.

2. Coal Raw Materials:

The primary raw materials are: Anthracite, Lignite, Bituminous Coal.

Features: Raw materials are readily available and costs are relatively low, making it suitable for the large-scale production of columnar and granular activated carbon. It is widely utilized in applications such as waste gas treatment, wastewater treatment, desulfurization, and denitrification.

3. Petroleum-based Raw Materials:

The primary raw materials are: Petroleum Coke, Asphalt Residue

These raw materials possess an exceptionally high carbon content and low impurity levels, making them ideal for the production of high-performance, specialized activated carbon with an ultra-high specific surface area—suitable for applications such as electrodes and catalyst carriers.

4. Agricultural and Domestic Waste

The primary raw materials are: Rice husks, crop stalks, fruit pomace,Bagasse, coffee grounds, Waste sludge, scrap rubber.

This not only resolves the issue of waste disposal but also renders the sourcing of activated carbon more sustainable—marking a key direction for eco-friendly production in the future.

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