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There are many kinds of wood-based activated carbon, including coconut shell activated carbon, fruit shell activated carbon, powdered activated carbon, granular activated carbon and other products; while coal-based activated carbon includes coal-based powdered activated carbon, coal-based granular activated carbon, coal-based columnar activated carbon, etc. The most difficult to distinguish is powdery activated carbon and granular activated carbon, so, is there any way to easily distinguish them?carbon raiser
Wood activated carbon
Wood activated carbon (GAC) is made of high-quality firewood, sawdust, wood block and other raw materials. According to the national standard of wood activated carbon (GB / t13803.2-1999), the wood activated carbon is processed and produced by the popular processes such as physical method, phosphoric acid method and zinc chloride method. The mesoporous structure and specific surface area of wood-based activated carbon are more developed, which makes its adsorption capacity larger and filtration speed faster. High strength, low ash content, reasonable pore size distribution and high ignition point.
Application of wood activated carbon
1. Gas phase adsorption
2. Recovery of organic solvents (recovery of benzene gas toluene, xylene, acetone in acetate fiber industry, recovery of CS2 in viscose staple fiber production, etc.)
3. Impurities and high adsorption and desorption, thus greatly improving the solvent recovery rate, removing harmful gases, glutamic acid and salt, lactic acid and salt, citric acid and salt, wine, condiment, animal and plant protein, biochemical products, pharmaceutical intermediates, vitamins, antibiotics and other products, decolorization, refining, deodorization, sewage removal, impurity removal, etc.
Coal based activated carbon
Coal based activated carbon is developed through 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 known as columnar carbon, is generally made of powdered raw materials and binders by kneading, extrusion, carbonization, activation and other processes. It can also be extruded with powdered activated carbon and binder. It has the characteristics of developed pore structure, good adsorption performance, high mechanical strength, easy recycling, low cost; it is used for the purification of toxic gas, waste gas treatment, industrial and domestic water purification, solvent recovery, etc.
Application of coal based activated carbon
Coal based activated carbon is widely used in drinking water, industrial water and wastewater deep purification, domestic, industrial water purification and gas adsorption, such as power plant, petrochemical, oil refinery, food and beverage, sugar and wine making, medicine, electronics, fish culture, shipping and other industries. It can effectively adsorb free chlorine, phenol, sulfur and other organic pollutants in water, especially mutagens (THM) ）to achieve purification and removal of impurities and odor.
It can also be used for industrial tail gas purification, gas desulfurization, petroleum catalytic reforming, gas separation, pressure swing adsorption, air drying, food preservation, gas mask, decomposition carrier, industrial solvent filtration, decolorization, purification, etc. Separation, purification and purification of various gases; recovery of organic solvents; decolorization, deodorization and refining of sugar, monosodium glutamate, medicine, wine and beverage; extraction of precious metals; catalyst and catalyst carrier in chemical industry. The product has decolorization, purification, impurity removal, deodorization, odor removal, carrier, purification, recovery and other functions.carbon additive manufacturing companies