Nano-Pyroxene for Adsorption and Catalytic Thermal Decomposition of Visbroken Residue Asphaltenes

Date
2016
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Abstract
Oil will continue to be a major source of future non-renewable energy, and hence new cost-effective technologies for upgrading and recovery of conventional and unconventional oils are needed. This study presents a new environmentally sound and low-cost, yet highly efficient pyroxene nanoparticles (NaFeSi2O6, PY). Low temperature hydrothermal synthesis route was used to prepare different sized and surface-structural-modified PY nanoparticles, which were characterized by different characterization techniques like XRD, BET, FTIR, TGA, TPD-CO2, TPD-NH3, XPS, SEM and HRTEM. These nanoparticles were applied for the adsorptive removal of violanthrone-79 (VO-79) as an asphaltene model molecule. The adsorption isotherms were described by the Sips isotherm model. Similarly, the prepared nanoparticles were employed for the adsorptive removal of visbroken residue (VR-C5) asphaltenes, and the solid-liquid-equilibrium (SLE) model was used to describe the adsorption isotherms. The promising catalytic effect of PY nanoparticles towards adsorbed VR-C5 asphaltenes was investigated using TGA coupled with mass spectrometry.
Description
Keywords
Energy, Engineering--Chemical, Engineering--Environmental
Citation
Hmoudah, M. (2016). Nano-Pyroxene for Adsorption and Catalytic Thermal Decomposition of Visbroken Residue Asphaltenes (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/27059