Chlorine storage unit design and application of risk mitigation measures

Identifier:  TFG:150

Handle: https://hdl.handle.net/20.500.11797/TFG150

Authors:  Callau Mendoza, Sara

Abstract:
PROJECT DESCRIPTION TFG – 214102 Chlorine storage unit design and application of risk mitigations measures, has been realized from February to May 2014. The purpose of the project is to do the design as complete as possible of the chlorine storage installations of Chlorite Company. Such storage unit will enable Chlorite to increase production during the low energy cost time-slots and decrease it during the high cost ones. In this way, the excess of what is produced during low cost time-slots could be stored and supplied when necessary to clients by rack. This will decrease the production during high cost time-slots and still be able to provide the clients with the product. Chlorine storage unit will be provided with a 82 m3 tank with a refrigerated recirculation to maintain the temperature of the equipment; moreover, there will be a chlorine absorption system which will act in case of any pressure relief valve installed discharge due to an overpressure situation. Taking into account that the substance to be stored is chlorine and according to Real Decret 1254/1999 (ref. 1) it is a substance classified as highly toxic (risk phrase R12). Once the unit is designed, a Quantitative Risk Assessment (hereinafter referred to as QRA) is done. Through that study Iso-Risc curves are obtained, which permit to visualize the risk associated to the installation and the effects to population. For this reason, one of the objectives of the project is to get the minimization of this risk. In order to get it, many design alternatives for the chlorine storage has been contemplated, as well as mitigation measures for the possible release cases. Finally, taking into account that the reason why the storage unit will be designed is economical, it is necessary to guarantee, with an economical study, that the design done is viable and will provide earnings to Chlorite.