METHOD FOR REMOVING THE COKES DURING THE PYROLYSIS OF 1,2-DICHLOROETHANE AND PYROLYSIS REACTOR USING THE SAME

摘要

A pyrolysis reactor of 1,2-dichloroethane is provided to prevent an accumulation of cokes in a reactor effectively, increase a conversion rate of 1,2-dichloroethane in pyrolysis, and improve a production efficiency of vinyl chloride. A pyrolysis reactor of 1,2-dichloroethane includes: a first reactor(2) which pyrolyzes 1,2-dichloroethane to produce vinyl chloride and hydrogen chloride; a second reactor(6) which brings a gas containing the vinyl chloride and hydrogen chloride discharged from the first reactor into contact with inactive solid particles; further a separator(7) which separates the gas containing vinyl chloride and hydrogen chloride from the inactive solid particles in a mixture of gas and inactive solid particles transferred from the second reactor; and further a regeneration reactor(3) which is provided with the inactive solid particles separated in the separator and burns the solid particles at high temperature to remove cokes adhered to the surfaces of the inactive solid particles. The regeneration reactor is connected with the second reactor to re-charge the inactive solid particles regenerated in the regeneration reactor into the second reactor.