中间吸收塔出口烟气雾沫夹带浅析

Analysis of outgas entrained with mist from interpass absorption tower exit

针对中间吸收塔出口烟气雾沫夹带严重的现象,从工艺设计、设备选型、运行操作等方面逐一分析,并通过类似冶炼烟气制酸系统中的中间吸收塔工艺参数对比,确定分酸器分酸点及分酸量不均匀是导致中间吸收塔出口烟气雾沫夹带的主要原因。在对分酸器进行整体更换后,其出口烟气雾沫夹带现象逐渐消失,酸雾含量基本达到设计要求。

Entrainment excessive in outgas from interpass absorbing tower（ INAT） are analyzed from the aspects of system design,equipment selection,operation and comparison of process parameters of INAT with those of similar acid plants. Its main causes are non-uniform of distribution sensity and flow. After replacement of acid distributor,entrainment in outgas from INAT basically met the design requirements.