Review and characteristic of cutting oil from soroush oil field Effect of Plenum reactor temperature "Reactor Plenum" on the production of propylene in the FCC unit Absorption and separating (completely) of acid gas carbon dioxide from natural gas in absorption tower Hydraulic simulation of oil and gas pipelines and calculation of pressure drop Optimize the capturing of carbon dioxide in the gas sweetening process and save energy in gas refinery sirri island Energy efficiency optimization in oil and gas industry