公开(公告)号：US20170363288A1

公开(公告)日：2017-12-21

申请号：US15606038

申请日：2017-05-26

Applicant: ExxonMobil Research and Engineering Company

Inventor： Hyungsik Lee ,  Larry M. Saddler

IPC: F23L15/04

CPC classification number: F23L15/045 ,  C10G9/005 ,  C10G9/20 ,  F23L15/00 ,  F28D7/08 ,  F28D15/0275 ,  F28D21/001 ,  Y02E20/348

Abstract: An improved fired heater with air preheating provided by one or more heat pipes. The fired heater may include at least one burner for combusting a fuel stream and an air stream and producing heated exhaust gases; a hot gas flow path and at least one conduit containing a process fluid to be heated by heat transfer from the heated exhaust gases; and an air preheater comprising at least one heat pipe having a first section exposed to the heated exhaust gases and a second section exposed to the air stream, wherein the heat pipe is positioned and arranged to transfer heat from the heated exhaust gases to the air stream, wherein the at least one heat pipe contains a working fluid sealed within the heat pipe, wherein said working fluid transfers heat from the heated exhaust gas to the air stream to be preheated.