35. Effect of Additives on Solubility of Coal- and Petroleum-Derived Heavy Solvent-Soluble Components in Organic Solvents

Abstract

The addition of some organic and inorganic compounds such as TCNE and LiCl has been found to be effective for the increase in extraction yields of coals and solubility of coal-derived ultra-heavy component, i.e., pyridine insoluble, CS_2/NMP soluble materials at our laboratory. The addition of basic compounds such as riethylamine were also reported to increase coal extraction yields. While, solubility of petroleum asphaltenes in alkanes increases by the addition of amphiphiles such as p-(n-dodecyl) benzenesulfonic acids. The mechanisms for solubilization are discussed.