公开(公告)号：US20240067884A1

公开(公告)日：2024-02-29

申请号：US18270159

申请日：2022-01-05

Applicant: EXXONMOBIL CHEMICAL PATENTS INC.

Inventor： Mark A. Rooney ,  David K. Marsh ,  Richard Young ,  David Spicer ,  William A. Aslaner ,  Jie Yang

IPC: C10G9/20 ,  B01J19/00 ,  B01J19/18 ,  C10G9/36

CPC classification number: C10G9/206 ,  B01J19/0013 ,  B01J19/1831 ,  C10G9/36 ,  B01J2219/00058 ,  B01J2219/00159 ,  C10G2300/708 ,  C10G2300/807

Abstract: The present disclosure relates to processes, methods, systems, and apparatus for steam cracking hydrocarbon in a pyrolysis furnace having a convection zone and a radiant zone. The convection zone includes three heat exchangers in series with a serpentine arrangement. A fluid source is disposed each heat exchanger to provide steam into the heat exchangers. The present disclosure further relates to a process of adjusting the stream flow rate for each fluid source to control operating conditions such as flue gas temperature, stack temperatures, and temperatures of other components of the furnace.