Ion liquid solvent for dissolving and removing asphaltene deposit and preparing method thereof, and method for removing asphaltene and regeneration method of the ion liquid solvent

The present invention relates to a method for dissolving ionic liquid solvent to remove sediment quality using bitumen, comprising: an ionic liquid solvent to the asphaltene deposits, and then the following operating conditions: the cation is an alkyl carbon atoms is between 4-12 quinolin morpholine operating temperature ionic liquids ambient temperature and pressure; and the operating conditions of ionic liquids alkyl pyridinium chloride, bromide or iodide, benzyl chloride pyridine, bromine or iodide, benzyl quinoline chloro, bromo or iodide for atmospheric temperature of 130 ℃ -150 ℃; ionic liquid solvent comprising an organic cation and an anion, the organic cation is a cationic pyridine or quinoline cations, anions chloride, bromide, iodide or tetrafluoro borate ion. Ionic liquid solvent having a high efficiency of the present invention, non-volatile, non-toxic, the amount is small, environmental pollution, no harm to the operator, and other advantages of using the cycle is repeated.