China Petroleum Chemical Corporation

Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

Nanjing Industrial Furnace Institute of Tianhua of Chemical Machinery & Automation

Sinopac Engineering Incorporation

Jinke Li

Guoqing Wang

Guang Cheng Li

Lijun Zhang

Xiou He

Changli Li

Yuping Guo

Chen Shao

An ethylene cracking furnace comprising a high pressure steam drum (), a convection section (), a radiant section (), multiple groups of radiant coils () arranged vertically in the firebox of radiant section, burners () and transfer line exchangers (), each radiant coil comprising a first-pass tube (), a second-pass tube () and a connection member (); feedstocks being introduced into an inlet end of the first-pass tube and outflow from an outlet end of the second-pass tube, said first-pass tube () and said second-pass tube () are non-split coils, and the centerlines of the respective radiant tubes () are within a common plane; said connection member () is a tridimensional structural member comprising an inlet bending tube (), a return bending tube () and an outlet bending tube (); said inlet bending tubes () and said outlet bending tubes () are arranged at two sides of the plane containing the centerlines of said first-pass tubes () and said second-pass tubes (), respectively; the projections of the respective connection members () in a side view are the same curve line that is symmetrical, continuous and closed; the inner diameters of said radiant coils () is varied at least once along the length of the tubes.

Ethylene cracking furnace

Growing community of inventors

Jiangsu, China

Jinke Li