Our client operates a facility using moderate quantities of chlorine gas which are unloaded from tankers. A scrubbing system was required that could cope with a wide range of operating conditions, which included: ? ? Idling conditions, small air flow, no chlorine. ? ? “Sniff gas” during unloading, small air flow containing modest chlo- rine level. ? ? Mild upset, similar flow but now all chlorine. ? ? System failure with more than ten times norma

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