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Analysis of operation trouble in Model KDON-4000/4000 air separation plant

Liu Shujie(Air Separation Workshop,Anyang Jiutian Fine Chemical Co.,Ltd.,Zhangwu Street,Anyang 455133,Henan,P.R.China)  
At trial run and during operation of Model KDON-4000/4000 air separation plant,troubles occurred such as low-pressure trip of water chiller set,freezing blocking of plate-fin heat exchanger and failure to open the program-controlled valve molecular sieve adsorber.The safety and reliability of operation of air separation plant is improved after taking corrective measures on basis of analysis of the said troubles.The abnormalities at trouble are briefed and the correction process and the obtained effects are detailed.
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