experimental study on viscosity reduction of iranian heavy export crude oil by using imidazolium based ionic liquids supported on zif-8 organic framework

Chemical - thermal technology is used to upgrade the quality and to decrease the viscosity of iranian extra-heavy crude oil in atmospheric pressure. in this present study, quality preparation of [omim][ntf2]-zif-8 (il@zif-8) nanostructures were performed solvothermal by using an oil-soluble long chain ionic liquids, [omim][ntf2] and a zeolitic imidazolate framework, zif-8. this complex was used in the thermal cracking of heavy oil as a chemical additive. the injection of a small amount of the il@zif-8 into extra-heavy oil caused the production of gaseous compounds, naphtha, middle distillates, lubricating oil, and tar. the viscosity measurement results show an evident viscosity reduction of 91% for extra-heavy oil after chemical-thermal cracking at 370 °c for a maximum of 120 min. the technique is ideally suited for cracking extra-heavy iranian crude oils, such as in the nowrooz-soroosh oilfields. to our knowledge, no report has been found about the chemothermal cracking of heavy crude oils, especially by using il@zif-8 metal-organic frameworks.