Method and apparatus for controlling a gasifier

Details Method and apparatus for controlling a gasifier Method and apparatus for controlling a gasifier

1982-11-08

1984-12-25

Woo, Jay H.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

48 61, 48 86R, 48197R, 48DIG10, 60664, 60 3912, F22D 528, G05B 100

Patent

active

044895623

ABSTRACT:
Fuel and oxidant feed rates into a gasifier 202 are regulated by monitoring overall output 14 and comparing with a pre-selected setpoint valve 10. An overall load demand signal 50, responsive to this comparision is generated and used as an input to control 102 oxidant feed rate. The heating value of the product gas is measured 76 and used to control 64 overall fuel feed rate to the gasifier 202. For a two stage slagging gasifier, the present invention controls 114 fuel feed rate to the slagging stage 210 responsive to the measured slagging stage reaction temperature 128.

REFERENCES:
patent: 4049971 (1977-09-01), le Febve de Vivy
patent: 4064698 (1977-12-01), Stern
patent: 4086758 (1978-05-01), Harboe
patent: 4099374 (1978-07-01), Foster-Pegg
patent: 4168956 (1979-09-01), Blaskowski

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