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Title:
METHOD AND DEVICE FOR CONTROLLING CO-GENERATION BOILER
Document Type and Number:
Japanese Patent JPS6023704
Kind Code:
A
Abstract:
An improved control system and method for maintaining the outlet temperature of a process fluid leaving a process fluid coil (19) located in the convection section (20) of a boiler (21) having a convection section and a radiant section (51). The improved control system and apparatus comprise means (101) for measuring the inlet temperature and the flow rate of a process fluid to the process fluid coil (19) and means (106) for measuring the temperature of the process fluid at the outlet of the process fluid coil (19). The improved control method and apparatus also comprise a first means responsive to changes in the inlet temperatures and flow rate to vary the amount of flue gas recirculated from the convection section (20) of the boiler to the radiant section (51) and a second means (102) responsive to changes in the outlet temperature of said process fluid to vary the amount of fuel feed to the combustion section of said boiler (21). A boiler in combination with the improved control system and apparatus is particularly useful in controlling the coil outlet temperature of a hydrocarbon process fluid and offers distinct advantages in heating the feed slurry to a coal liquefaction process.

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Inventors:
HENRII EFU DEMENA
MAIKERU EI TANOFU
Application Number:
JP6926684A
Publication Date:
February 06, 1985
Filing Date:
April 09, 1984
Export Citation:
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Assignee:
EXXON RESEARCH ENGINEERING CO
International Classes:
F22B35/00; C10G1/00; F22B33/18; F22B35/10; (IPC1-7): F22B35/10
Attorney, Agent or Firm:
Motohiro Kurauchi



 
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