Fuel gas calorie control method and device

Details Fuel gas calorie control method and device Fuel gas calorie control method and device

2006-02-22

2008-07-08

Till, Terrence R. (Department: 4175)

Combustion

Process of combustion or burner operation

Controlling or proportioning feed

C431S005000, C431S075000, C431S089000, C431S090000, C060S039120, C060S039463, C060S039465, C060S781000, C060S783000

Reexamination Certificate

active

07396228

ABSTRACT:
Calories of a first mixed gas are predicted by calculations based on the mixed flow rate of a blast furnace gas and the mixed flow rate of a converter gas measured by flow meters, and preset blast furnace gas calories and converter gas calories; the flow rate ratio of the mixed flow rate of a coke oven gas to a gas turbine consumed fuel gas flow rate is calculated based on the predicted calories, set calories, and preset coke oven gas calories; the mixed flow rate required value of the coke oven gas is calculated based on the flow rate ratio and a gas turbine fuel gas requirement signal corresponding to the gas turbine consumed fuel gas flow rate; and the opening of a coke oven gas flow control valve provided in a fuel gas production system is controlled, based on the mixed flow rate required value, to control the mixed flow rate of the coke oven gas.

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German Office Action dated Dec. 20, 2007, Application No. 10 2006 008 484.5.

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