Nature protection technologies

1.3.2. Technologies of sulfur oxides emissions reduction

Part 1. AIR PROTECTION FROM POWER INDUSTRY EMISSIONS

1.3. Sulfur oxide emission reduction

1.3.2. Technologies of sulfur oxide emission reduction

Shmigol I.N., JSC “VTI”

Brief description of desulfurization technologies and installations

More than 400 methods based on different chemical and physical principles are proposed to remove sulfur dioxide from flue gases:

  • chemical binding with formation of the recoverable and unreclaimable wastes;
  • selective sorption by solid substances (activated carbon, zeolites, resins) with the following regeneration of sorbents;
  • selective liquid-phase sorption by specific organic liquids;
  • conversion of sulfur dioxide to trioxide in the gas phase using catalysts or special electrical discharges;
  • liquid-phase catalytic reduction of sulfur dioxide to elemental sulfur.