| abstract |
It refers to a method to remove nitrogen oxides from the Gas Flow, which belongs to the technical aspect of Air Pollution Control and Environmental Protection. Its processing is described below: the flow of gases to be treated is introduced into the Gas-Solid Reaction Tower, and at the same time the solid particles of the ferric chloride are introduced to the same Tower; thus, the chemical reactions of adsorption of Solid Gas are carried out between the nitrogen oxides of said gas flow and said ferric chloride in the Reaction Tower, resulting in the absorption of said nitrogen oxides and the purification of gases. The present invention also describes a special device, whose characteristics consist of low investment and operation costs, by-product recovery, easy operation, high treatment efficiency and high treatment capacity. |