Automatic transformation and optimization of main reaction kettle for chloroacetic acid production
Through conducting HAZOP analysis on the main reaction kettle of chloroacetic acid,the optimal safety instrument system control and interlocking scheme is adopted to reduce the accident risk to an accept-able range and provide technical support for the automatic transformation of the chlorination process.By summarizing the process parameter control requirements and actual operation experience,the internal rela-tionship among reaction density,reaction kettle temperature and chlorine gas inflow is analyzed.Then,the DCS system upgrade scheme is formulated to maximize production efficiency and reaction yield.After the transformation,the production cost is reduced,the reaction yield and rate are improved,and certain eco-nomic benefits are obtained.At the same time,the risk of fire and poisoning accidents caused by over-temperature and over-pressure phenomena is reduced.
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