In 1986, Nichiki Mitsui Mining Co., Ltd. took the lead in the development of activated carbon T method DESOXDENOX technology, which has recently developed into one of the most successful environmental protection technologies, and has been widely used in major developed countries in the world.It is expected that by 2010, the world demand for desulfurization and denitration activated carbon will reach 60~-80 million tons/year, becoming the largest variety of activated carbon.(4) Removal of dioxin gas phase pollutants.Dioxins are a general term of halogen-containing organic compounds, which are newly discovered violent carcinogens in gas phase, and are produced in large quantities in the flue gas discharged from municipal waste incinerator.Norit took the lead in producing two series of special GL50 and FGD powders with the activity of removing dioxin pollutants with high efficiency, which have been widely used recently.
(5) activated carbon for double-layer capacitors.Because of the peak period of electricity consumption, the stable power supply of power supply enterprises is a traditional worldwide problem. If the electric energy can be stored in the trough period of electricity consumption and automatically released in the peak period, the power grid can realize intelligent automatic regulation.
After repeated research, it has been found that some special activated carbon has this function, a developed country has made a huge double-layer capacitor, which filled thousands of tons of this activated carbon as electrode material, the test results confirm that its storage!
The ability to release a charge can have the desired effect.Microwave heating can produce good effects in the preparation and modification of activated carbon (S2. Microwave modification, many backwater hole is opened, the distributed capacitance change obviously, promoting the improvement of the adsorption. The microwave power and irradiation time are key determinants of modified activated carbon adsorption performance. On the mechanism of microwave carbonization and activation, it is generally believed that
Plant waste is mostly made of plant fiber raw materials, in the plant body under the action of capillary, modified solution absorbed by material whole fully, between fiber is filled with the subtle space, make the dry material volume expansion after soaking wet, and reaction. Because of the water in the raw material, modified solution constitute a polar molecule, with a strong absorption of microwave dielectric properties,Therefore, polar molecules collide and rub violently with microwave frequency, generating a large amount of heat, which makes water and modified solution volatilize rapidly, and generate steam pressure, which explodes out from the inside of the raw material to the outside. This sharp action makes the fiber space of the raw material expand and produce sharp drying.In this way, the raw material has a more obvious pore structure and a larger internal specific surface area than before microwave irradiation. Compared with the traditional heating method, the mechanism of microwave in the preparation process of activated carbon is completely different.It shows its unique advantages: high efficiency, energy saving, uniformity, selectivity, low pollution, high thermal efficiency, low energy consumption, simple process and equipment and small footprint, conducive to automation, low carbon loss, and recovery of useful substances.
silicon carbide manufacturers in chinaMany theoretical problems in this new field, especially the microwave heating mechanism, need to be further studied, and the mathematical model of the heating process needs to be established
aluminium oxide powder
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