In view of the problem of increased resistance of mist catcher in gas main after NH3 removal of the saturater,which affects normal operation of the gas system,an additional gas bypass is added,the mist catcher on the existing gas main is removed,and new mist catchers are respectively installed on the outlet pipes of the two saturaters.After the modification,the saturater can be switched in case the resistance of the mist catcher increases and off-line maintenance for the saturater can be done.
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