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Kinetics on Direct Synthesis Dimethyl Ether

  • Cho Wonihl (Research and Development Division, Korea Gas Corporation) ;
  • Choi Chang Woo (Research and Development Division, Korea Gas Corporation) ;
  • Baek YoungSoon (Research and Development Division, Korea Gas Corporation) ;
  • Row Kyung Ho (Dept. of Chem. Eng., Inha University)
  • 발행 : 2005.10.01

초록

The kinetics of the direct synthesis of DME was studied under different conditions over a temperature range of $220\~280^{\circ}C$, syngas ratio $1.2\~ 3.0$ All experiment were carried out over hybrid catalyst, composed to a methanol synthesis catalyst (Cu/ZnO/$Al_2O_3$) and a dehydration Catalyst ($\gamma$-Al_2O_3$) The observed reaction rate qualitatively follows a Langmiur-Hinshellwood type of reaction mechanism. Such a mechanism is considered with three reaction, methanol synthesis, methanol dehydration and water gas shift reaction. From a surface reaction with dissociative adsorption of hydrogen, methanol and water, individual reaction rate was determined

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