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首页> 外文期刊>Theoretical foundations of chemical engineering >Performance of Different Inert Gases in Production of Fuel Grade Ethanol by Diffusion Distillation
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Performance of Different Inert Gases in Production of Fuel Grade Ethanol by Diffusion Distillation

机译：不同惰性气体在扩散蒸馏中生产燃料级乙醇的性能

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Performance of sulfur hexafluoride, nitrogen, argon, and helium inert gases was investigated in a view to produce fuel grade ethanol by diffusion distillation. Stefan-Maxwell equations based mathematical model was used for this study. Modeling results were also compared with the own experimental data. Shifting of azeotrope to different extents was observed by using different inert gases as selective filter. As the selected inert gas becomes lighter, narrow concentration range for positive selectivity was found. Sulfur hexafluoride was found to be the most suitable inert gas for ethanol dehydration by diffusion distillation, and quantity , which represents the overall performance of any inert gas, was also found to be highest for this gas out of all the inert gases studied. Sulfur hexafluoride gas also allows to work at high vaporization temperature, which facilitates the high transfer efficiency. If light gases are to be used they should be used for high feed concentrations and at low vaporization temperatures to achieve the high degree of separation.
机译：研究了六氟化硫，氮，氩气和氦惰性气体的性能，以通过扩散蒸馏生产燃料级乙醇。基于STEFAN-MAXWELL方程的数学模型用于本研究。也与自身的实验数据进行了建模结果。通过使用不同的惰性气体作为选择性过滤器，观察到通过不同的惰性气体移位到不同范围内。当所选择的惰性气体变得更轻时，发现了阳性选择性的窄浓度范围。发现硫化硫化物是通过扩散蒸馏的乙醇脱水的最合适的惰性气体，并且还发现任何惰性气体的整体性能的量，对于所研究的所有惰性气体，该气体也是最高的。六氟化硫也允许在高汽化温度下工作，这有利于高转移效率。如果要使用光气体，它们应该用于高进料浓度和低汽化温度以实现高度的分离。

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