Hi Movers,
IMO there is no restriction in providing a APH on a steam cracker furnace.
Air preheating on steam cracker was patented by KBR in 1986:
https://patents.goog...t/US4617109A/en
while TechnipFMC is currently offering APH on their low emission cracker furnace as described in the attached link:
https://www.technipf...ns_flysheet.pdf
I think the competitors Lummus and Linde offers similar solutions to keep the efficiency and the emissions aligned with peers.
Regards,
Edited by Francesco_Chem_Eng, 16 December 2020 - 08:37 AM.