Technology for activating and extracting furfural solvent

The invention discloses a technology for activating and extracting a furfural solvent; the technology comprises the following steps of: (1) heating a raw material oil: heating the raw material oil in a degassing tower to 80-150 DEG C; (2) heating a urea solution, heating the urea solution in an extracting tower to 100-150 DEG C; (3) stirring: fully stirring and mixing the heated raw material oil and the heated urea solution in an extraction container; and (4) extracting: pouring the furfural solvent into the extraction container for extraction, and obtaining furfural refined oil; as few urea is added in the technology, honeycomb mesh structures of urea molecules adsorb n-alkanes of molecular groups in the raw material oil, the molecular groups are broken, at the moment, furfural is very easily combined with olefin in the molecular groups; and therefore, according to the technology, the extraction can be realized under the condition of low furfural proportioning, and the temperature only needs to be set in the