[01] Kasra Amiri, Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran. [02] Seyyedeh Media Jad Baba, Department of Chemical Engineering, Sirjan Branch, Islamic Azad University, Sirjan, Iran. [03] Farshad Farahbod, Department of Petroleum Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran.

Adsorption of water vapour on the nano zinc oxide bed is a studied method of dehydration, in this work. The amount of mass transfer which varies with the values of temperature, pressure, dimensionless groups in length, , temperature, , dimensionless pressure, , catalyst diameter, dimensionless diameter, , and initial amount of water in the feed stream is investigated through the experiments. The results are analysed by the historical data tool of Design expert software. The energy optimization is occurred when the process do in optimum conditions. In addition, the experimental data are analysed by historical data interface on the Response Surface tab. This helps to evaluate the experiments and investigate the optimum pressure and temperature. The software suggests linear correlation between variables. The parameters of temperature, pressure, , particle diameter and initial amount of water are chosen as numeric factors. The response is defined as amount of dehumidification flux, .

Energy Optimization, Bed, Dimensionless, Adsorption, Pressure, Temperature

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