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Making Water and Air Safer and Cleaner
ISEP System - 60944 ISEP
®SYSTEM
Continuous Ion Exchange Separations ISEP
®System ISEP
®Illustration ISEP
Calgon Carbon’s Engineered Solutions group has patented the ISEP® Continuous Separator to perform ion exchange separations using countercurrent processing.The ISEP
® andCSEP
® (chromatographic separator) systems are currently used at over 300 installations worldwide in more than 40applications including GMP processes.The ISEP
® Continuous Separator system features a turntablesupporting 20 to 30 resin chambers.The turntable rotates at a constant speed and moves the resin chambers with it as they cycle continuously through the various separation phases.The ISEP
® system directs the fluids through the resin chambersand delivers product continuously.Conventional ion exchange fixed bed adsorption systems are usually employed in processes that require the removal of dilute concentrations of chemical species.The low concentrations permit beds of practical size to remain in service for relatively long periods of time,typically 4 to 24hours.The major disadvantages of fixed bed resin systems are the inefficient utilization of sorbent,their high volume consumption of chemicals,and their limited applicability due to the constraint of low feed concentration.The ISEP Configuration Flexibility
®
Design Features
The ISEP • Reduced Resin Inventory• Reduced Regeneration Chemicals • Configuration Flexibility• Simplified Control Philosophy• Steady State Operation® Continuous Separator provides a new dimension in design flexibility that addresses some of the more seriousdisadvantages of fixed bed industrial separators.
DESIGN FEATURES
Reduced Resin Inventory Reduced Regeneration Chemicals Sorbent inventory reductions of 30% to 90% are possible due to minimization of idle resin.The use of short resin beds allow for maximum resin utilization.None of the resin sits idle in the cells since it is moved into regeneration as soon as it is exhausted,and it is moved into adsorption as soon as it is regenerated. Regenerant/resin volume ratios of <1 are achieved by way ofcountercurrent flow through short sorbent beds.This leads to higher spent regenerant concentrations and smaller effluentvolumes.Countercurrent regenerant and rinse water flows with low-volume resin cells combine to reduce the amount of chemicals and dilution required to regenerate and clean the resin.® system allows for a number of unit functions to be simultaneously achieved within a dynamic process streamunder continuous operating conditions.Complex processesrequiring multiple eluent and regeneration streams are easily accomplished with the ISEP
® system. Simplified Control Philosophy The ISEP
® valve eliminates all complex sequencing of high maintenance on/off valves.This feature reduces valve maintenance and makes the system easy to operate. Steady State Operation There is no interruption of feed or regenerant stream flows,and effluent streams are consistent in composition.