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The technological remoulding of dethanizing column in the ethylene unit of Lahzhou Petrochemical Company was introduced.
介绍了兰州石化公司乙烯装置脱乙烷塔系统的改造.
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The composition of by - product steam racking in the ethylene unit and its utilization development were introduced.
介绍乙烯装置裂解到产品C_ 5馏分的组成和开发利用途径.
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