EXHAUST GAS TREATMENT

Japanese Patent JP3225082

B2

PURPOSE: To effectively treat exhaust gas contg. a lot of dust without wasting an expensive carbon material by installing a layer of a dust collecting material on the exhaust inlet side of a reactor and next installing a layer of a carbon material for desulfurization and denitration.
CONSTITUTION: A simple partition means 3 is installed inside a reactor 1 and the 1st and 2nd moving beds 4, 5 are formed in this order from the exhaust gas inlet side. A dust collecting material 6 is fed to the 1st layer 4 and a carbon material 7 is fed to the 2nd layer forming a main reaction layer to make them flow from above to under. The exhaust gas is passed through a louver structure 2 on the exhaust gas inlet side to feed it to the reactor 1. After the exhaust gas is first deprived of most of dust in the 1st layer 4, it enters the 2nd layer 5 where harmful materials such as sulfur oxide and nitrogen oxide are adsorbed, decomposed and removed. After that, the fallen dust collecting material 6 and carbon material 7 join with each other to be transferred to a separator 11 where collected dust and pulverized matter are separated and further the dust collecting material 6 and carbon material 7 are separated. And, the dust collecting material 6 is circulated and reused as it is and the carbon material 7 is circulated and reused after regeneration.

Yoshiro Ito

JP9245592A

November 05, 2001

March 19, 1992

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Mitsui Mining Co., Ltd.

B01D46/34; B01D53/08; B01D53/34; B01D53/60; B01D53/74; B01J8/12; (IPC1-7): B01D53/60; B01D46/34; B01D53/08; B01D53/74; B01J8/12

JP60118232A
JP60255131A
JP588533A
JP5482775A
JP5564829A
JP5239568A

Mikio Nakabayashi

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