Finnegan, Henderson, Farabow, Garrett and Dunner
Ethylene cracking furnace
An ethylene cracking furnace is provided. The ethylene cracking furnace includes at least one radiant section. The at least one radiant section includes bottom burners and/or sidewall burners, and at least one radiant coil arranged in the radiant section. The radiant coil includes at least an upstream pass tube and a downstream pass tube, the upstream pass tube being configured as an inner tube, and the downstream pass tube being configured as an outer tube surrounding the inner tube and having a closed end. The inner tube defines an inner space forming an upstream flow path. A gap defined between the inner tube and the outer tube forms an downstream flow path.
SINOPEC Engineering Incorporation China Petroleum & Chemical Corporation
C B B B C B B
C10G B01J B01J B01J C10G B01J B01J
inventional inventional inventional additional additional additional inventional
Changli Chen Xiou Hainü Jingkun Yuping
Li Shao He Shen Liu Guo