METHOD OF GASSES PURIFICATION Russian patent published in 2004 - IPC

FIELD: metallurgy; in chemical and other industries.

SUBSTANCE: the invention is dealt with the field of purification of gasses and is intended for reduction of pollutant emissions in the atmosphere at electrolytic production of aluminum, in metallurgy, in chemical and other industries. The method of purification of gases from fluorine hydride and resinous substances provides for engagement of gas with a fresh and a recirculated adsorbent with formation of aerocloud. At that they use a powder-like polydisperse adsorbent, execute feeding of recirculated adsorbent in a gas stream having a speed of 30-12 m\s, and feeding of the fresh adsorbent in a gas stream having a speed of 2-9 m\s. After mixing of the gas with the fresh adsorbent the direction the gas stream is changed by 160 - 180 °. At that a part of the adsorbent is returned in the zone of the gas stream located between the place of introduction of the recirculated adsorbent and the place of introduction of the fresh adsorbent. The invention allows to increase efficiency of purification of the gases and to increase a degree of operation of the adsorbent in the volume of reaction.

EFFECT: the invention allows to raise efficiency of purification of the gases and a degree of the adsorbent operation in the volume of reaction.

1 ex, 1 dwg