Dr. Ahmed Bahran is a professor at the Department of Petroleum Refining and Petrochemical Engineering, Faculty of Petroleum and Mining Engineering, Suez University, Suez, Egypt. He worked for 7 years as an associate professor in the Chemical Engineering Department, College of Engineering, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia. He obtained his PhD in Chemical Engineering from INPL (National Polytechnic Institute of Lorraine), University of Lorraine, France. His research interests are in the area of water and wastewater networks, natural gas processing, optimization in the field of mass and heat transfer networks, polymer technology, biofuel manufacturing, and water treatment by composite materials or RO membranes. He is an excellent trainer and teaches many advanced courses in the field of natural gas processing and petroleum refining beyond the petrochemical industry. He is a reviewer for some significant journals like the Journal of Natural Gas Science and Engineering.