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   The Effect of Sodium and Chloride Salts on Tetrahydrofuran Hydrate Formation By Using A Differential Scanning Calorimetry  
نویسنده Naeiji Parisa ,Varaminian Farshad
منبع Gas Processing Journal - 2018 - دوره : 6 - شماره : 2 - صفحه:49 -60
چکیده    In this study, a differential scanning calorimetry (dsc) has been used to characterize tetrahydrofuran (thf) hydrate formation with and without the presence of sodium and chloride salts. the thermal properties including the heat of formation,phase change temperatureand specific heat capacity of thf hydrate formation have been determined. when salts are present, thf hydrate is inhibited, so that the phase change temperature shifts to a lower temperature, a broadening of the dsc peak can be seen and the height of the peak and the heat of formation decreases. because the heat capacity depends on the heat of formation,it reduces when salt is present. the results show that the sodium salt solutions have exhibited the best performance on delaying nucleation of hydrate in order of na2so3 > naf > nacl, while chloride salt solutions, especially cacl2, have demonstrated that can reduce the heat of formation to around 65% compared to that of without salt.
کلیدواژه Tetrahydrofuran Hydrate ,Differential Scanning Calorimetry ,Formation Heat ,Phase Change Temperature ,Specific Heat Capacity
آدرس Semnan University, Faculty Of Chemical, Gas And Petroleum Engineering, Iran, Semnan University, Faculty Of Chemical, Gas And Petroleum Engineering, Iran
پست الکترونیکی fvaraminian@semnan.ac.ir

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