CRACKING FURNACE

摘要

A cracking furnace for thermal cracking of hydrocarbon feedstocks, capable of reducing its length, site area, wall surface area, and the number of quenching heat exchangers installed, thereby making the apparatus compact and lightweight and reducing damage of parts due to high temperatures, which cracking furnace comprises a central burner provided vertically at the center of the ceiling of a combustion chamber; side burners provided vertically at both sides of the central burner; reaction tubes vertically arranged between the central burner and respective side burners, forming arch bends at the lower part of the chamber, and arranged in rows along the longitudinal direction of the chamber; a combustion gas-inducing duct provided at the bottom of the chamber; a quenching heat exchanger provided at the upper part of the chamber; and a reaction tube exit header connecting a plurality of exits of the reaction tubes to the quenching heat exchanger.