Finer mesh ion exchange resins for condensate demineralizer system

A Finer Mesh ion exchange resin technique was first introduced to the BWR condensate demineralizer system in Japan in 1985. This report outlines the various test results, improvements of equipment, and actual operational results, which were connected with introduction of the Finer Mesh ion exchange resins. A project with Finer Mesh resins was carried out to improve CRUD capturing ability and increase ion exchanging capability of condensate demineralizer systems by shifting their resin particle size distribution from conventional mesh to finer mesh by increasing resin surface areas. The condensate demineralizer system by this technique has so far proved excellent improved running performance. (author)