Development of 14 Crosslinked Strong Acid Cation Gel Resin

摘要

A uniform particle size (UPS) strong acid cation gel resin with 14% crosslinkage has been developed. This paperrnsupports the use of the 14% cation resin for use in deep-bed condensate polishing systems at BWR and PWR nuclear powerrnstations. This paper provides theoretical considerations for using the 14% crosslinked gel resin compared to conventional cationrnresin products, data results from laboratory studies to characterize the oxidative stability and decomposition products, andrnperformance data from m-plant column tests.rnBased on excellent performance in the laboratory and m-plant column tests, the high crosslinked cation resin was installed at twornBWR nuclear power plants in Japan in 2001. It has been confirmed that the sulfate level in the reactors was significantlyrndecreased with the newly developed resin and the resin has been working well since the installation. This paper also providesrnperformance data from the field operation currently underway in Japan.