Dr. Jasim Ibrahim Humadi Hassan Al-Mashhadani is an Assistant Professor in the Department of Petroleum and Gas Refining Engineering, College of Petroleum Processes Engineering, Tikrit University, Iraq. He holds a Ph.D. in Chemical Engineering, specializing in Petroleum Refining Processes and Chemical Reactor Design. His research interests include heterogeneous catalysis, chemical reactor design, petroleum refining, oxidative desulfurization of fuels, artificial intelligence and machine learning, process modeling and simulation, process optimization, industrial wastewater treatment, and sustainable energy technologies. He has published more than 91 peer-reviewed papers in Scopus and Web of Science indexed journals and has developed patented technologies in chemical reactor design, petroleum refining, catalysis, and fuel desulfurization.