分析了半再生重整装置二段混氢换热器膨胀节失效破裂的原因。
Reason of invalidation failure was analyzed on expansion joint of second stage exchanger of mixture hydrogen in semi-regenerative reformer.
尾吸系统采用二段氨法生产液体二氧化硫和亚硫酸氢铵。
The system adopted two-stage ammonium process to produce liquid sulphur dioxide and ammonium bisulphite.
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