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http://dx.doi.org/10.7842/kigas.2020.24.4.32

A Study on the Improvement of Preventive Measures for Improving the Safety of Chemical Reactor  

Byun, Yoon Sup (Dept. of Chemical Engineering, Ulsan College)
Publication Information
Journal of the Korean Institute of Gas / v.24, no.4, 2020 , pp. 32-38 More about this Journal
Abstract
Based on the cases of fire and explosion accident in the chemical reactor, thr problems of preventive measures installed in the chemical reactor were analyzed. The chemical reactors produce a variety of chemicals and install rupture disk to relieve the pressure that rises sharply in the event of a runaway reaction. In order to maintain the function of the rupture disk, the emissions was allowed to be discharged into the atmosphere, resulting in fire and explosion accidents. As a way to improve this, safety instrumented system based on the safety integrity level(SIL3) was applied as a preventive measures for chemical reactor. Two emergency shur-off valves are installed in series on pipe dropping raw materials for chemical reactor so that the supply of raw materials can be cut off even if only one of the two emergency shut-off valves is operated during the runaway reaction. The automatic on/off valve is installed in parallel in the supply pipe of the reaction inhibitor so that the reaction inhibitor can be injected even if only one valve is opened at the time of the runaway reaction.
Keywords
chemical reactor; rupture disk; preventive measures; safety instrumented system; safety integrity level;
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