The invention provides a
plasma coupling fluidized catalyst device which is characterized in that a first conical
quartz tube is arranged in the middle of an inner medium tube, a first cylindrical
quartz tube is arranged at the upper end of the inner medium tube, a second cylindrical
quartz tube is arranged at the lower end of the inner medium tube, a high-
voltage electrode covers the outer wall of the conical quartz tube, and an inner ground
electrode is arranged in the inner medium tube; the inner ground
electrode comprises a cylindrical
metal rod and a conical
metal rod, an air outlet is formed in the outer medium
pipe, the outer ground electrode covers the outer wall of the outer medium
pipe, and the bottom end air inlet device is arranged in the bottom end of the outer medium
pipe. According to the invention, gas molecules are helped to reach a vibration excitation state, and conversion of the gas molecules is promoted. Compared with other
dielectric barrier
discharge devices, heat generated by
discharge of the
dielectric barrier
discharge device is beneficial to activation of a catalyst, and an integrated air inlet device is used, so that all
airflow is sprayed out through micro-inclined capillary micropores and acts on floating of the catalyst more accurately, and loss of air pressure is reduced. The device has low requirements on the material and temperature of the reactor, and realizes efficient conversion of the
benzene ring-containing compound gas within a short time.