Patent ID: 6383455
Filing Date: 2002-05-07
Classification: B01J,C10G

Abstract:
A furnace for cracking a saturated hydrocarbon feed stock into olefinic hydrocarbon products, comprisinga fire box having a radiant heating volume within which is located a structure composed of a ceramic refractory material which, by opposing wall surfaces of the ceramic refractory material structure, defines a passage way for communication of a hydrocarbon mass through the radiant heating volume of said firebox, and a precracker section positioned to receive therein hot flue gases from the firebox, said precracker having reaction lines therein to receive an additional mass of saturated hydrocarbon feed stock for passage herethrough, and means outside the firebox for communicating an additional mass of hydrocarbon after passage through the precracker reaction lines into admixture with such hydrocarbon mass which has communicated through the passageway defined by the ceramic structure located in the firebox.