SYSTEM AND PROCESS FOR REMOVAL OF POLLUTANTS FROM A GAS STREAM

摘要

System for removal of targeted pollutants, such as oxides of sulfur, oxides of nitrogen, mercury compounds and ash, from combustion and other industrial process gases and processes utilizing the system. Oxides of manganese are utilized as the primary sorbent in the system for removal or capture of pollutants. The oxides of manganese are introduced from feeders into reactio n zones of the system where they are contacted with a gas from which pollutant s are to be removed. With respect to pollutant removal, the sorbent may intera ct with a pollutant as a catalyst, reactant, adsorbent or absorbent. Removal ma y occur in single-stage, dual stage, or multi-stage systems with a variety of different configurations and reaction zones, e.g., bag house, cyclones, fluidized beds, and the like. Process parameters, particularly system differential pressure, are controlled by electronic controls to maintain minimal system differential pressure, and to monitor and adjust pollutant removal efficiencies. Reacted sorbent may be removed from the reaction actio n zones for recycling or recycled or regenerated with useful and marketable by - products being recovered during regeneration.