The coal-based activated carbon is made of high-quality anthracite as raw material and refined by advanced technology. The appearance is black cylindrical particles; it has reasonable pore structure, good adsorption performance, high mechanical strength, easy repeated regeneration and low cost; Purification of toxic gases, waste gas treatment, purification of industrial and domestic water, solvent recovery, etc.
Physical and chemical performance analysis (GB/T 7701. 7-1997)
Activated carbon is a porous carbonaceous material. It has a highly developed pore structure and is an excellent adsorbent. The adsorption area per gram of activated carbon is equivalent to eight tennis balls. The adsorption is achieved by physical adsorption and chemical adsorption. In addition to the carbon element, its constituents still contain a small amount of hydrogen, nitrogen, oxygen and ash, and its structure is formed by the formation of a hexacyclic ring of carbon. Due to the irregular arrangement of the six-ring carbon, the characteristics of the microporous volume and high surface area of ​​the activated carbon are caused.
Activated carbon can be made from a variety of carbonaceous materials including wood, sawdust, coal, coke, peat, lignin, pits, hard husks, sucrose pulp, bone, lignite, petroleum residues, and the like. Among them, coal and coconut shell have become the most commonly used raw materials for the manufacture of activated carbon. The manufacture of activated carbon is basically divided into two processes. The first process includes dehydration and carbonization, heating the raw materials, drying at a temperature of 170 to 600 ° C, and carbonizing the original organic matter by about 80%. The second process is to activate the char, which is carried out by reacting an activator such as steam with carbon. In the endothermic reaction, a mixed gas consisting of CO and H2 is mainly produced for burning the heated char to a suitable temperature (800). Up to 1000 ° C), in order to burn off all the decomposable substances, thereby producing a developed microporous structure and a large specific surface area, and thus has a strong adsorption capacity.
The pores of activated carbon can be classified into three types according to the size of the pore size. Large hole: Radius 1000 - 1000000 A. Transition hole: radius 20 - 1000 A. Micropores: Radius - 20 A.
Activated carbon made from different raw materials has pore sizes of different sizes. Coconut shell activated carbon has the smallest pore radius. Wood activated carbons generally have the largest pore radii, they are used to adsorb larger molecules and are used almost exclusively in the liquid phase. The first type of granular activated carbon used in the field of urban water treatment is made of wood, called charcoal. The pore size of coal-based activated carbon is somewhere in between.
In coal-based activated carbon, lignite activated carbon has more transition pores and larger average pore diameter than anthracite activated carbon, so it can effectively remove macromolecular organic matter in water.
Activated carbon, which is generally used in water treatment, has a surface area that is not necessarily too large, but should have more transition pores and a larger average pore diameter. Some activated carbons for liquid phase sales in Japan have the following characteristics: a specific surface area of ​​850 to 1000 m 2 /g, a pore volume of 0.88 to 1.5 ml/g, and an average pore radius of 40 to 50 A.
Introduction to activated carbon function:
Activated carbon has high-efficiency air purification function, activated carbon can create a comfortable and clean environment, activated carbon is more protective to human health, activated carbon is an invisible air filter, activated carbon is a combination of physical adsorption and chemical decomposition, and decomposes formaldehyde in the air. , ammonia, benzene, cigarettes, oil smoke and other harmful gases and various odors, especially carcinogenic aromatic substances, activated carbon has a strong adsorption capacity, is a commonly used adsorbent, catalyst or catalyst carrier, easy to air The harmful gas is in full contact, and the activated carbon uses its own pore adsorption to suck harmful gas molecules into the pores, blowing out fresh and clean air. Therefore, family partners cannot do without activated carbon.
Application of activated carbon:
Activated carbon is widely used in various aspects of industrial and agricultural production, such as alkali-free deodorization (refined desulfurization), ethylene demineralized water (refined filler), catalyst carrier (palladium, platinum, rhodium, etc.), water purification and sewage treatment in the petrochemical industry; Water treatment and protection of power plants in the industry; chemical catalysts and carriers in the chemical industry, gas purification, solvent recovery and decolorization and refining of oils and fats; refining and decolorization of beverages, alcohols, MSG and foods in the food industry; gold in the gold industry Extraction, tail liquid recovery; environmental treatment industry sewage treatment, waste gas and harmful gas treatment, gas purification; and related industries, cigarette filters, wood floor moisture, odor absorption, automotive gasoline evaporation pollution control, preparation of various impregnating liquids Wait. Activated carbon will have excellent development prospects and a broad sales market in the future.
Coal-based activated carbon is made of high-quality coal as raw material, and is developed through a series of processes such as carbonization, cooling, activation and washing. Its appearance is generally black cylindrical activated carbon, amorphous coal granular activated carbon, also known as broken carbon. Cylindrical activated carbon, also called columnar carbon, is generally prepared by mixing, extruding, and then carbonizing and activating a powdery raw material and a binder. It can also be extruded with powdered activated carbon and a binder. It has developed pore structure, good adsorption performance, high mechanical strength, easy repeated regeneration and low cost. It is used for purification of toxic gases, waste gas treatment, purification of industrial and domestic water, and solvent recovery.
Coal activated carbon application field:
1. Water treatment industry: tap water, industrial water, sewage treatment, pure water, beverages, food, medical water;
2. Air purification: removing impurities, deodorizing, sucking, removing formaldehyde, benzene, toluene, xylene, oil and gas and other harmful gas substances;
3. Industry: decolorization, purification, air purification;
4. Fish farming: filtration;
5. Reagent: catalyst and catalyst carrier;
Coal-based activated carbon is divided into different parts according to the production process and function;
Type I coal columnar activated carbon:
Widely used in solvent recovery, industrial waste gas purification, protective equipment, home improvement air purification, power plant raw water purification, drinking water purification, water reuse.
Type II coal columnar activated carbon:
Widely used in pure water treatment, power plant raw water treatment, electronic plant water treatment, chemical pigment water treatment, food factory and pharmaceutical plant water treatment, as well as sewage plant biological carrier, waste water treatment in factories and garbage dumps, water reuse, marine aquaculture Nursery and other aspects.
Type III coal columnar activated carbon:
It is widely used in the fields of pure water production, sewage treatment, sewage biological carrier, marine aquaculture, cold storage, and factory air purification.
V-type raw coal broken granular activated carbon:
Suitable for use in power plant raw water purification, tap water purification. Especially in the filtration and purification treatment of chemical sewage and the use of brackish water in the power plant boiler, there is a good treatment effect.
Type VI raw coal broken granular activated carbon:
It is suitable for the raw water purification of power plants, especially in the filtration and purification treatment of chemical sewage, and the chlorine treatment of brackish water in power plant boilers, which has a good treatment effect. And soil improvement projects on golf courses.
V2 type coal powdered activated carbon:
It is mainly suitable for tap water purification, which is used to adsorb organic matter, residual chlorine and odor in raw water, reduce turbidity, and improve the taste to meet the drinking water standard. This product also has a good treatment effect in the sewage treatment industry.
Coal quality activated carbon factory specifications:
Specification: 25KG Packing: double woven bag
Color Coated,Ppgi 0.14-1.2Mm,Roof Material
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