Classification of Charcoal

White Charcoal
Origin of white charcoal: white charcoal mainly hardwood timber in the Fagaceae, Ulmaceae trees as raw material, as a result of the tree can be divided into different there: Wu Gang white charcoal (raw materials: Wu Gang oak), white charcoal glauca (raw material: beech oak), white carbon (materials: Other oak, beech trees and other no standing timber). White charcoal mainly in Zhejiang (Longquan), Hunan, Fujian, Shaanxi, Hubei (Shiyan, Shennongjia etc.), Henan (Luoyang, Nanyang), Sichuan, Yunnan, Guizhou, Shandong and other regions. Because of the national environmental policy reasons, the industry has become less and less.
Features: Benefits burning a long time, do not smoke, pollution, heavy, metal steel percussion sounds; shortcomings moisture-prone burst (crackling sound when burned, and Mars splash wounding), expensive and so on.

Black Charcoal
Origin of black charcoal: mainly soft-leaved firewood based. Because of different species can be divided into: expensive tea charcoal, charcoal sticks, bamboo and other low-cost civil BC. Tea charcoal, charcoal sticks mainly in forest-rich northeastern provinces, with oak wood as raw material, the firing process and the selection is very particular about. Other cheap civilian BC mainly in Anhui, Zhejiang, Henan and other places, with elm, linden, willow and other wood as raw material. Simple and cheap to burn gained popularity, but because of the national environmental policy and industry profits and other reasons, the industry has become less and less.
Features: Advantages easy to ignite; shortcomings prone to explosion, intolerance burning, smoke and other combustion.

Activated Charcoal
Activated carbon can be said that the deep processing of charcoal. Mainly produced in southern China, Fujian, Zhejiang and he was put charcoal use zinc chloride, phosphate, potassium sulfide and other chemicals dolomite activation, rinsing, drying, grinding processing, the production process for more serious water pollution, countries generally limit the production.
Activated carbon is a well-developed pore structure, a large specific surface area and adsorption capacity of the carbon. The total surface area per gram of activated carbon up to 1500 square meters.
Activated carbon has adsorption properties, catalytic properties, it is insoluble in water and other solvents, having on the physical and chemical stability. In addition to high-temperature oxygen hereinafter contact with the outside ozone, chlorine, dichromate and other strong oxidizing agent, under actual conditions of use are extremely stable. Due to the excellent properties of the activated carbon as an adsorbent, activated carbon so very versatile.
It is worth noting that different methods to prepare activated carbon, it will be different selective adsorption, have a certain scope, the improper use of poor results.

Artificial Charcoal
With sawdust as raw material, through the use of charcoal sawdust machine equipment to high temperatures, high pressure forming, and then into the carbonization furnace charring. Throughout the production process without adding any additives, an environmentally friendly product category. The main market square and hexagonal center free center hole two shapes. As a traditional charcoal, artificial charcoal (traditional charcoal: the trees as raw material, firing, is a destruction of resource industries has now been banned in China) alternative products, it has a long burn time, high calorific value, do not smoke no detonator, environmental protection and other advantages.

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