Device for injection of hydrocarbons into a fluidized chamber

摘要

A device suitable for atomization and injection of a hydrocarbon batch into a reaction chamber comprises an admission and mixing chamber ( 5 ) for the liquid hydrocarbon batch introduced into the device by a tube ( 8 ) and for an atomization gas introduced into the device by a cylindrical casing ( 9 ) containing tube ( 8 ). Casing ( 9 ) is extended by a Venturi tube ( 6 ) which has a convergent part connected upstream to cylindrical casing ( 9 ) and a divergent part connected downstream to a hemispheric tip ( 7 ) that leads, by a rectangular slit with an opening angle ( 16 ) between about 100 and 115 degrees, to the reaction chamber. The device can be used in processes for catalytic cracking of heavy hydrocarbons.