FPSO - types of heaters

[PetroBob]

I'm doing a feasibility study for a novel marine process that has some similarities to FPSO. I haven't personally worked on FPSOs before, so was hoping to get some guidance from engineers more familiar with FPSO design than I am.

What types of process heating systems are typically used on an FPSO. Fired heaters?
Do FPSOs ever use any heat recovery/integration between ship engine systems and process operations, or are these always kept completely separate?
Can anyone recommend a suitable fired heater vendor who supplies to FPSO clients?

 

[JRMacGregor]

Some FPSOs used gas turbines on topsides which supply the power for the topsides (process and utilities) as well as the "marine" part (usually the smallest consumer). Sometimes these GTs use waste heat recovery units.

Some FPSOs use the old steam boiler system (plus new boilers if needed) to supply steam to new power generators on topsides - as an alternative to the GTs.