Chlorine is highly toxic and in the event of accidental release has the potential to kill or inflict injury to the people. This kind of release may occur unexpectedly and cause huge loss. Hence proper mitigation methods should be devised. In this study the accidental release of liquid chlorine from the storage tank is considered and a new mitigation model is proposed. The model is proposed using add-on active protective measures with the existing plant facilities. Consequence assessment of accidental release of chlorine from the existing and proposed system has been done. It has been demonstrated that significant consequence reduction of chlorine release is possible through the proposed mitigation system.

Keywords: chlorine, consequence, mitigation, vaporization