Statistical Analysis of the Effects of Aluminum Oxide (Al2O3) Nanoparticle, TBAC, and APG on Storage Capacity of CO2 Hydrate Formation
نویسندگان
1 Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, I.R. IRAN
2 Department of Chemical Engineering, University of Bojnord, Bojnord, I.R. IRAN
3 Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, I.R. IRAN
4 Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, I.R. IRAN
5 Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, I.R. IRAN
doi
10.30492/ijcce.2020.125267.4096چکیده
In this study, the effect of various concentrations of alkyl polyglycoside (APG), aluminum oxide nanoparticles (Al2O3), and tetra-n-butyl ammonium chloride (TBAC) on the storage capacity of CO2 hydrate formation are investigated. For this aim, a laboratory system is developed. The experiments are carried out in the pressure range of 25 to 35 bar and the temperature range of 275.15 K to 279.15 K. The Experimental results showed that by increasing the system pressure at a constant temperature, the storage capacity increased by 48% on average. Decreasing the system temperature at constant pressure increased the storage capacity by 23% on average. Adding APG to the system at constant temperature and pressure increases the storage capacity by 75% on average, while adding nanoparticles of aluminum oxide increases the storage capacity by 5% and TBAC 38% on average. For statistical analysis of laboratory data, Design-Expert software and Response Surface test design method, and Quadratic model are employed and a mathematical relationship is developed with R2 = 0.9987 to estimate CO2 storage capacity in hydrates. The optimum amount of storage capacity equal to 137.476 has been reached at 34.558 bar, 276.085 K, 2.825 wt% of TBAC, 956.733 ppm APG, 2.436 wt % Al2O3.
