A METHOD FOR REMOVING NITROGEN OXIDES, SULFUR OXIDES, AND OTHER ACID GASES FROM A GAS STREAM

摘要

In a method for removing nitrogen oxides, sulfur oxides, and other acid gases from a gas stream in which an adsorption agent is suspended in the gas stream in a reaction zone wherein these oxides and acid gases are adsorbed by the adsorption agent; whereafter the adsorbent agent is at least partially withdrawn from the reaction zone as an entrained suspension and substantially removed from the gas stream in a separation zone; whereafter the exit gas is discharged to the atmosphere; while separated adsorbent agent is introduced into a regeneration zone where the adsorbed oxides and acid gases are substantially removed and withdrawn in a concentrated form; while the regenerated adsorption agent is recycled to the reaction zone, whereby the separation zone comprises a first electrostatic filter and optionally an additional filter arranged upstream the first electrostatic filter and/or a low grade fuel is used as a reducing agent in the regeneration zone.