This book is a valuable guide for professionals working on applying environmentally sound and low-cost, yet highly efficient pyroxene nanoparticles for upgrading and recovery visbroken residue asphaltenes. Readers will gain insight into adsorption and catalytic thermal decomposition of visbroken residue asphaltenes in a clear and concise manner.The synthesis routes to prepare nanopyroxene with different sizes in the nanoscale and different surface-structural-modifications are addressed in detail. Also, this book highlights the major finding of different characterization techniques such as XRD, BET, FTIR, TGA, TPD-CO2, TPD-NH3, XPS, SEM and HRTEM.