Ali Asghar Pasban - Department of Chemistry, Semnan University, Semnan, Iran
Ali Asghari - Department of Chemistry, Semnan University, Semnan, Iran
Ali Miran Beigi - Oil Refining Research Division, Research Institute of Petroleum Industry, (RIPI), Tehran, Iran
Maryam Rajabi - Department of Chemistry, Semnan University, Semnan, Iran

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][NTf۲]-ZIF-۸ (IL@ZIF-۸) nanostructures were performed solvothermal by using an oil-soluble long chain Ionic Liquids, [OMIM][NTf۲] and a zeolitic imidazolate framework, ZIF-۸. 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-۸ 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 ۹۱% for extra-heavy oil after chemical-thermal cracking at ۳۷۰ °C for a maximum of ۱۲۰ 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-۸ metal-organic frameworks.

IL@ZIF-۸, Extra-heavy export crude oil, Chemical-Thermal cracking, Ionic Liquids, Viscosity Reduction