Gas removal method and composition
Abstract
Abstract A SELECTIVE METHOD OF REMOVING SULFUR DIOXIDE FROM FLUE GASES OR THE LIKE CONTAINING BOTH SULFU DIOXIDE AND HYDROGEN SULFIDE WITHOUT REMOVING THE HYDROGEN SULFIDE BY BUBBLING THE FLUE GAS THROUGH ABOUT A 5-95 PERCENT SOLUTION OF AN ORGANIC ACID AND AN ALKALI METAL SALT OF THE SAID ACID. THE ACID IS SELECTED FROM THE GROUP OF CITRIC, MALIC, LACTIC, SUCCINIC, ASCORBIC AND TARTARIC. THE ACID IS PREFERABLY CITRIC AND THE ALKALI METAL IS PREFERABLY POTASSIUM. THE RATIO OF THE WEIGHT OF THE SALT TO THAT OF THE ACID MAY BE WITHIN THE RANGE OF ABOUT 1S:2A TO 6S:1A OR SUCH AS IS NEEDED TO MAKE THE SOLUTION PH BETWEEN ABOUT 4.0 TO 6.0, WHERE S AND A ARE ONE MOLE EACH OF SAID SALT AND SAID ACID, RESPECTIVELY. THE SAID RATIO PREFERABLY IS 5S:1A OR THE PH IS PREFERABLY 5.7.
Inventors
- 👤 R Austin
- 👤 A Vincent
Bibliographic Details
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