Research institute of Petroleum Industry (RIPI) Journal of Petroleum Research 2345-2900 21 68 2013 05 28 Measurement and Prediction of Hydrate Formation Conditions with Mixed Inhibitors and Modeling by Thermodynamic Models Measurement and Prediction of Hydrate Formation Conditions with Mixed Inhibitors and Modeling by Thermodynamic Models 19 31 87 10.22078/pr.2013.87 FA S.M. Hoseini Nasab Department of chemical engineerin, Tarbiat Modares University, Tehran M. Vafae Sefti Department of chemical engineerin, Tarbiat Modares University, Tehran A.A. Izadpanah Department of chemical engineerin, Khalij Fars University, Booshehr Journal Article 2013 05 28 In this paper new equilibrium data has been obtained for methane hydrate in the presence of three thermodynamic mixed inhibitors: NaCl + DEG, NaCl + TEG and MeOH + TEG as well as for carbon dioxide simple hydrate in the presence of two glycols inhibitors, i.e. monoethylene glycol (MEG) and diethylene glycol (DEG) for various concentrations using constant volume method. In this work, measured equilibrium data has been reported for conditions, for which there is limited reported data. Thermodynamic model and general correlation of Heriot-Watt University have been applied for estimating the measured equilibrium data and good agreements between measured and predicted data were observed. In this paper new equilibrium data has been obtained for methane hydrate in the presence of three thermodynamic mixed inhibitors: NaCl + DEG, NaCl + TEG and MeOH + TEG as well as for carbon dioxide simple hydrate in the presence of two glycols inhibitors, i.e. monoethylene glycol (MEG) and diethylene glycol (DEG) for various concentrations using constant volume method. In this work, measured equilibrium data has been reported for conditions, for which there is limited reported data. Thermodynamic model and general correlation of Heriot-Watt University have been applied for estimating the measured equilibrium data and good agreements between measured and predicted data were observed. https://pr.ripi.ir/article_87_c7e1249ffc03eb9ded908c236bd1996d.pdf