بررسي كاربرد مايعات يوني به عنوان حلال سبز در فرآيندهاي پالايش نفت و گاز

Study on Ionic Liquids as Green Solvent in Petroleum and Gas Processes

Ionic liquids (ILs), considered being a relatively recent magical chemicals due to their unique properties, have a large variety of applications in all areas of the chemical industries. The areas of application include electrolyte in batteries, lubricants, plasticizers, solvents and catalysis in synthesis, matrices for mass spectroscopy, solvents to manufacture nano-materials, extraction, gas absorption agents, etc. Non-volatility and non-flammability are their common characteristics, giving them advantage in various applications. This common advantage, when considered with the possibility of tuning the chemical and physical properties of ILs by changing anion-cation combination is a great opportunity to obtain task-specific ILs for a multitude of specific applications. There are numerous studies in the related literature concerning the unique properties, preparation methods, and different applications of ILs in the literature. In this review, a general description of ILs and historical background are given; basic properties of ILs such as solvent properties, polarity, toxicology, air and moisture stability are discussed; structure of ILs, cation, anion types and synthesis methods in the related literature are briefly summarized. However, the main focus of this paper is how ILs may be used in the chemicals processing industries.