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Numerical simulation of separating gas mixtures via hydrate formation in bubble column

LUO Yantuoa,b; ZHU Jianhuaa; CHEN Guangjina   

  1. a Faculty of Chemical Science & Engineering, China University of Petroleum, Beijing 102249,
    China
    b PetroChina Planning & Engineering Institute, Beijing 100083, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-06-28 Published:2007-06-28
  • Contact: LUO Yantuo

鼓泡塔中水合物法分离混合气体的数值模拟

罗艳托a,b; 朱建华a; 陈光进a   

  1. a Faculty of Chemical Science & Engineering, China University of Petroleum, Beijing 102249,
    China
    b PetroChina Planning & Engineering Institute, Beijing 100083, China
  • 通讯作者: 罗艳托

Abstract: To develop a new technique for separating gas mixtures via hydrate formation, a set of
medium-sized experimental bubble column reactor equipment was constructed. On the basis of
the structure parameters of the experimental bubble column reactor, assuming that the
liquid phase was in the axial dispersion regime and the gas phase was in the plug flow
regime, in the presence of hydrate promoter tetrahydrofuran (THF), the rate of hydrogen
enrichment for CH4+H2 gas mixtures at different operational conditions (such as
temperature, pressure, concentration of gas components, gas flow rate, liquid flow rate)
were simulated. The heat product of the hydrate reaction and its axial distribution under
different operational conditions were also calculated. The results would be helpful not
only to setting and optimizing operation conditions and design of multi-refrigeration
equipment, but also to hydrate separation technique industrialization.

Key words: hydrate, kinetics, separation, bubble column, numerical simulation

摘要: To develop a new technique for separating gas mixtures via hydrate formation, a set of
medium-sized experimental bubble column reactor equipment was constructed. On the basis of
the structure parameters of the experimental bubble column reactor, assuming that the
liquid phase was in the axial dispersion regime and the gas phase was in the plug flow
regime, in the presence of hydrate promoter tetrahydrofuran (THF), the rate of hydrogen
enrichment for CH4+H2 gas mixtures at different operational conditions (such as
temperature, pressure, concentration of gas components, gas flow rate, liquid flow rate)
were simulated. The heat product of the hydrate reaction and its axial distribution under
different operational conditions were also calculated. The results would be helpful not
only to setting and optimizing operation conditions and design of multi-refrigeration
equipment, but also to hydrate separation technique industrialization.

关键词: hydrate;kinetics;separation;bubble column;numerical simulation