Control of a reforming furnace

Details Control of a reforming furnace Control of a reforming furnace

1983-03-30

1984-09-25

Kratz, Peter F.

Compositions

Gaseous compositions

Carbon-oxide and hydrogen containing

48 94, 48196R, 48197R, 48214R, 48DIG10, 364500, 422 62, 422109, 518704, C01B 324

Patent

active

044734905

ABSTRACT:
A reforming furnace having a radiant section containing cracking tubes, a convection section and a stack is controlled so as to maintain a desired synthesis gas temperature unless such maintenance would result in the violation of a process constraint. The desired excess oxygen concentration in the combustion gases withdrawn from the radiant section is also maintained while maintaining the desired synthesis gas temperature. As for the convection section, the temperature of a fluid stream passing through the convection section is maintained while still maintaining a desired excess oxygen concentration in the stack gas.

REFERENCES:
patent: 3120431 (1964-02-01), Carton et al.
patent: 3666932 (1972-05-01), White
patent: 3676066 (1972-07-01), Pennington
patent: 3759820 (1973-02-01), Boyd
patent: 3979183 (1976-09-01), Scott
patent: 4072625 (1978-02-01), Pinto
patent: 4115862 (1978-09-01), Stewart
patent: 4187542 (1980-02-01), Ball et al.
patent: 4228509 (1980-10-01), Kennedy
Leeds & Northrup Application Memo, E6.0001-AM, Nov. 1976, "Century Lead-Lag Fuel/Air Ratio for Combustion Processes."

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