Condensate purification process
Abstract
Abstract A CONDENSATE PURIFICATIN PROCESS INVOLVING DEMINERALIZATION IN A MIXED BED EXCHANGER UNDER CONDITIONS MINIMIZING ALKALI METAL LEAKAGE BY PREVENTING THE PRESENCE OF ALKALI FORM OF THE CATION EXCHANGE RESIN IN THE DEMINERALIZER. THE RESINS ARE SEPARATED INTO LAYERS AND REGENERATED IN DIFFERENT VESSELS OR IN THE SAME VESSEL. MINOR AMOUNTS OF CATION EXCHANGE RESIN ARE UNAVOIDABLY PRESENT IN THE ANION EXCHANGE RESIN DURING ITS REGENERATION BY ALKALI, AND THE SODIUM FORM OF THIS SMALL AMOUNT OF CATION EXCHANGE RESIN IS TRANSFORMED INTO THE AMMONIUM FORM BY RECIRCULATION OF AMMONIUM HYDROXIDE THROUGH THE ANION EXCHANGE RESIN AND THE MAIN BODY OF THE SPENT CATION EXCHANGE RESIN BEFORE ITS REGENERATION. THE SODIUM FROM THE ANION EXCHANGE RESIN IS DISPLACED INTO THE CATION EXCHANGE RESIN AND ELIMATED WHEN THE LATTER IS REGENERATED BY ACID.
Inventors
- 👤 George J Crits
Bibliographic Details
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