START-UP METHOD

摘要

A start-up method for the process of producing chlorine from hydrogen chloride, which comprises the mixed gas production step (S10) of producing a chlorine-containing mixed gas from hydrogen chloride, the compressed mixed gas production step (S20) of introducing the mixed gas into an inlet (104a) of a compressor (104) and compressing the mixed gas in the compressor (104) to produce a compressed mixed gas, the purification step (S30) of introducing the compressed mixed gas into a purification column (105) to separate the mixed gas by distillation into pure chlorine and impurities, and the recompression step of introducing the pure chlorine into the inlet (104a) of the compressor (104) to compress the mixed gas and pure chlorine.