Advanced waste heat recovery in industrial fired-heaters
AssigneeSaudi Arabian Oil Company
InventorYazeed Safar ALSHAHRANI
Life of this patent
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Abstract
A piping system for recovery heat energy from an exhaust gas in a heat recovery furnace, the piping system comprising a piping inlet, where the piping inlet transects a wall of a stack zone of the heat recovery furnace, a piping run, the piping run fluidly connected to the piping inlet, and a piping outlet, the piping outlet fluidly connected to the piping run, where the piping outlet transects the wall of the stack zone of the heat recovery furnace, where the piping system is positioned in a stack zone of the heat recovery furnace between a stack inlet and a stack outlet.
Claims18
A piping system for recovery heat energy from an exhaust gas in a heat recovery furnace, the piping system comprising:
- a piping inlet, where the piping inlet transects a wall of a stack zone of the heat recovery furnace;
- a piping run, the piping run fluidly connected to the piping inlet;
- and
- a piping outlet, the piping outlet fluidly connected to the piping run, where the piping outlet transects the wall of the stack zone of the heat recovery furnace,
- where the piping system is positioned in a stack zone of the heat recovery furnace between a stack inlet and a stack outlet.
A method of recovering heat from an exhaust gas in a stack zone of a heat recovery furnace, the method comprising the steps of:
- introducing a process gas through a piping inlet, where the piping inlet transects a wall of the stack zone;
- allowing the process gas to flow through a piping run physically connected to the piping inlet, where the piping run is positioned in the stack zone between a stack inlet and a stack outlet, where the piping run is positioned adjacent to the wall such that the exhaust gas flows through the piping run;
- transferring heat from the exhaust gas to the process gas as the process gas flows through the piping run;
- and
- allowing the process gas to flow through a piping outlet physically connected to the piping run.
Dependencies are inferred from the claim text.