Activated carbon is a kind of the carbonaceous material made of
appearance is black, internal pore structure developed, specific surface
area, and strong adsorption ability of microcrystalline carbon
materials. It is a commonly used adsorbent, catalyst or catalyst
carrier, which are widely used in almost all the national economy
departments and People's Daily life.
Due to the sources of the raw
materials, manufacturing methods, appearance shape and application of
different occasions, the types of activated carbon (species) a lot, so
far there is no accurate statistical materials, it is estimated that the
world not less than one thousand kinds of activated carbon varieties.
1, according to the raw material source points
Wood
activated carbon, wood activated carbon is to point to by wood, crop
straw, bamboo and its processing waste fruit shell as raw material to
manufacture of activated carbon products. Animal bones, blood carbon -
made use of animal bones, blood as raw materials, according to certain
method made of carbon (some carbon content only more than ten) also has
not poor adsorption performance, strict sense this product is not as
activated carbon. But it is also often used to call it activated carbon.
Mineral
raw material activated carbon - this kind of activated carbon is mainly
refers to by all sorts of coal and oil and its processing products
(including coal tar, coal tar, coal carbocoal, petroleum hydrocarbons,
oil residue, oil drain table, petroleum coke, etc.) as raw material of
activated carbon.
Other raw materials for activated carbon ,
scientific research and application specific needs and expand the
activated carbon sources of the raw materials, also can use synthetic
resin, waste rubber and waste plastic, life and industrial waste of
organic matter as raw materials manufacturing activated carbon.
Now there is with metal carbide as raw material, the metal is removed and making hole special developed activated carbon.
Regeneration of activated carbon filter,
in order to make full use of resources, many in different occasions to
have been used and has lost its adsorption activated carbon through
different methods of processing and restored all or part of the
adsorption performance, repeated use. Put out adsorption properties of
activated carbon compound adsorption activity process that activated
carbon regeneration, through the process of regeneration of activated
carbon regeneration of activated carbon is processing. Regeneration
method is hot regeneration, chemical elution, solvent extraction
regeneration, biological regeneration, etc.
3, according to appearance shape classification
Powdered activated carbon
Grain
activated carbon powder activated carbon and activated carbon particles
in addition to two kinds of outside, still have other shapes, such as
activated carbon fiber, carbon fiber blanket, activated carbon cloth,
honeycomb activated carbon, activated carbon plate, etc.
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