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Experimental study and modeling of the kinetics of gas hydrate formation for acetylene,ethylene, propane and propylene in the presence and absence of SDS
Authors:Hamed Hashemi  Saeideh Babaee  Kaniki Tumba  Paramespri Naidoo
Affiliation:1. Thermodynamics Research Unit, School of Engineering, University of KwaZulu-Natal, Durban, South Africa;2. Department of Chemical Engineering, Mangosuthu University of Technology, Durban, South Africa
Abstract:The kinetics of hydrate formation of the hydrocarbons acetylene, ethylene, propane, and propylene were investigated using a fully stirred batch reactor. In relation to hydrate formation, a kinetic model was used to determine the induction time, the rate of hydrate formation, the apparent hydration rate constant, water-to-hydrate conversion associated with hydrate growth as well the storage capacity. This was done for all gases investigated in this study. Experiments were performed in the temperature and pressure ranges of (273.7–280.0) K and (0.5–4.12) MPa, respectively. Furthermore, the effect of sodium dodecyl sulfate (SDS) on the gas hydrate formation rate was examined. A substantial growth in the hydrate nucleation rate was observed in the presence of SDS.
Keywords:clathrate hydrate  gas hydrate  induction time  kinetics  SDS
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