Magnetically rotational reactor for absorbing benzene emissions by ionic liquids

A magnetically rotational reactor (MRR) has been developed and used in absorbing benzene emissions. The MRR has a permanent magnet core and uses magnetic ionic liquid [bmim]FeCl₄ as absorbent. Benzene emissions were carried by N₂ into the MRR and were absorbed by the magnetic ionic liquid. The rotation of the permanent magnet core provided impetus for the agitation of the magnetic ionic liquid, enhancing mass transfer and making benzene better dispersed in the absorbent. 0.68 g benzene emissions could be absorbed by a gram of [bmim]FeCl₄, 0.27 and 0.40 g/g higher than that by [bmim]PF₆ and [bmim]BF₄, respectively. The absorption rate increased with increasing rotation rate of the permanent magnet.