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Thermodynamic measurement and modeling of hydrate dissociation for CO2/refrigerant + sucrose/fructose/glucose solutions |
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| Authors: | Parisa Doubra Rasoul Hassanalizadeh Paramespri Naidoo Deresh Ramjugernath |
| Affiliation: | 1. Thermodynamics Research Unit, School of Engineering, University of KwaZulu-Natal, Durban, South Africa;2. Thermodynamics Research Unit, School of Engineering, University of KwaZulu-Natal, Durban, South Africa Contribution: Funding acquisition (lead), Investigation (equal), Supervision (lead), Writing - review & editing (equal);3. Thermodynamics Research Unit, School of Engineering, University of KwaZulu-Natal, Durban, South Africa Contribution: Funding acquisition (lead) |
| Abstract: | Hydrate dissociation conditions were studied for the CO2/refrigerant + sucrose/fructose/glucose solution systems as a continuation of previous work into alternate separation technologies for the sugar manufacturing industries. Experimental data were measured following the isochoric pressure method for the CO2 + sucrose/fructose solution systems. The refrigerants studied for the modeling purpose were R410a, R507, R134a, and R22 using literature data. The pressure and temperature ranges for the experimental data measured here were (1.80–4.10) MPa and (276.6–282.6) K, respectively, with solutions measured in the composition range between 0 to 0.40 mass fraction sucrose and fructose. Several models following the Van der Waals–Platteeuw solid solution theory were developed to predict the hydrate dissociation conditions of CO2/fluorinated refrigerant in the presence of sucrose/fructose/glucose solutions. The modeling results provide a satisfactory representation of the experimental data, with AARD(P) % model errors in the overall range between 0.03% and 4.40%. |
| Keywords: | carbon dioxide fructose gas hydrate dissociation glucose refrigerants sucrose |