Apparatus for removal of sulfur dioxide from waste gases
Abstract
Abstract APPARATUS FOR REMOVAL OF SULFUR DIOXIDE FROM WASTE GASES IS CONNECTED TO THE EXHAUST OF A FLUE GAS SYSTEM, IN WHICH A CHEMICAL REACTION PROMOTED BY OZONE IS BROUGHT ABOUT BETWEEN OXYGEN AND SULFUR DIOXIDE BOTH IN THE PRESENCE OF SOLID CATALYST AND IN THE PRESENCE OF CATALYST IN SOLUTION. EQUIPMENT AT A SERIES OF STATION MAY SEQUENTIALLY INTRODUCE INTO THE HOT GAS FLOW (A) FINELY DIVIDED MANGANESE DIOXIDE, AIR (OR OXYGEN) AND OZONE, (B) AN OZONE-ENTRAINED SPRAY OF AN AQUEOUS SOLUTION OF MANGANESE SULFATE AND (C) A JET OF WATER OF OF THE SAME AQUEOUS SOLUTION TO REMOVE ANY MANGANESE OXIDE POWDER OR LIQUID PARTICLES ENTRAINED IN THE GAS FLOW. THE MANGANESE SULFATE SOLUTION IS RECOVERED AND RECIRCULATED UNTIL IT ATTAINS A CONCENTRATION PRACTICAL FOR SULFATE RECOVERY.
Inventors
- 👤 Masayuki Kawahata
Bibliographic Details
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