Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element responds proportionally to a variable signal...
Patent
1994-07-05
1996-10-22
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Control element responds proportionally to a variable signal...
422108, 422110, 422109, 422173, 422177, 422202, 422203, 422204, 431 5, 165909, B01J 804, F01N 310
Patent
active
055673902
ABSTRACT:
A catalytic oxidizer having an interactive dilution control system for continuous treatment of air hydrocarbon vapor mixture having a shell vessel for enclosing a central volume of generally circular cross-section, a combined catalyst chamber and spiral heat exchanger integrally connected and coaxially positioned within the shell vessel, also of cylindrical configuration, for providing a continuous transverse flow path from an inlet header to the exhaust header including a spiral heat exchanger for providing counter-flow heating of vapor, a catalyst chamber centrally positioned in said shell vessel an inlet plenum, a central core for containing a catalyst means, and an exhaust plenum; and interactive dilution control apparatus for automatically maintaining a concentration of inlet vapor at a selected optimum operating level including a microprocessor control sub-system for sensing the temperature in each zone of the catalyst chamber connected to the dilution control means; by-pass apparatus connecting the exhaust plenum with an exhaust stack means for controlling the heat recovery in said spiral heat exchanger; and dilution control apparatus connected to inlet means for providing variable inlet flow; wherein said dilution control sub-system in combination with said microprocessor control sub-system and said by-pass control sub-system automatically adjusts inlet dilution of air hydrocarbon vapor mixtures for optimum operational efficiency and automatic adjustment of heat recovery of the spiral heat exchanger with controlled by-pass of exhaust air hydrocarbon vapor, including automatic shutoff.
REFERENCES:
patent: 4770857 (1988-09-01), Ludwig
patent: 4983364 (1991-01-01), Buck et al.
patent: 5163829 (1992-11-01), Wildenberg
patent: 5326537 (1994-07-01), Cleary
patent: 5330727 (1994-07-01), Trocciola et al.
Kahrl, Esq. Thomas A.
Tran Hien
Warden Robert J.
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