分析PX装置可燃气体检测报警系统存在的问题，阐述处理问题的办法，提出进一步改进的建议。
To analyze the problem in the flammable gas detective and alarm system in the PX plant and put forward some suggestions of more improvement.
气体分馏装置原料液化石油气(LPG)中有机硫化物形态复杂，考察分析工业装置精丙烯硫化物含量变化难度大。
It's very difficult to investigate the content variation of sulfide in fine propene since the state of organic sulfide in gas fractionation unit feedstock (LPG) was very complex.
对气体分馏装置目前存在的问题，分析原因并提出了解决方案。
Meanwhile the problems existing in gas fractionation unit and resolutions for it are put forward.
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