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Description of Molecular Sieve Dehydration Process

Hu Xiaomin,Lu Yongkang,Zeng Liangquan (China Petroleum Engineering Co.,Ltd. Southwest Company,Chengdu,Sichuan,610017,China)  
Molecular sieve dehydration is a mature dehydration process and being applied widely at home and abroad presently,which has such advantages as simple operation,small land occupation,non-sensitivity to changes of feed gas temperature,pressure and flowrate. Water content in dehydrated gas may be as low as 10-6. Generally,molecular sieve dehydration process includes 2-tower flow,3-tower flow or multiple-tower flow. Summarized are some important operating parameters of molecular sieve dehydration unit,which may be for reference in future engineering design.
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