| 摘要 |
The invention provides a multiple-bed process and equipment for demineralizing condensate which make it possible to reduce remarkably the reverse regeneration rate in regenerating resins and improve the quality of treated water in ammonia employment. The invention relates to a multiple-bed process for demineralizing condensate with ion-exchange resins by passing condensate through a multiple-bed resin layer made by combining alternately anion resin layers and strongly acidic gel-type cation resin layers of uniform particle size having degrees of crosslinking of 10 to 16% in such a state divided by separation walls as to inhibit the mixing of the resins with each other, wherein the strongly acidic gel-type cation resin has a mean particle diameter of 500 to 800mum, a content of resin particles whose diameters falls within the range of the mean particle diameter ± 100mum of 95% or above, and a uniformity coefficient of 1.2 or below. When the ion exchange resins require regeneration by passing a chemical, the resins can be each separately drawn, regenerated by passing a chemical, and then returned to their respective spaces surrounded by separation walls. |
