I started my Ph.D. study at the Budapest University of Technology and Economics (BME) in September 2022, until August 2026. My previous study for bachelor's and master's was at Tikrit University. Through my study in Ph.D., I will work on biodiesel production by interesterification reaction using an enzymatic catalyst. Supercritical carbon dioxide will be used in my work to improve the process. For this study, we are going to measure the phase equilibrium of different systems, the kinetics of atmospheric enzymatic reaction, and the production of biodiesel at high conditions.