Dr. Esmail Khalife is currently an assistant professor of Salahaddin University. Dr. Esmail Khalife is also a researcher in Biofuel Research Team. He received his MSc and PhD from the University of Urmia and University of Mohaghegh Ardabili in 2011 and 2017, respectively. Also, he is currently executive assistant at Biofuel Research Journal. His current research interests are in the area of Renewable Energy, Biofuel production, Combustion, and Green House Gases (GHG).