Process for incinerating heterogeneous combustible material

Details Process for incinerating heterogeneous combustible material Process for incinerating heterogeneous combustible material

1990-06-27

1992-02-11

Yuen, Henry C.

Furnaces

Process

Treating fuel constituent or combustion product

110215, 110216, F23B 700

Patent

active

050867156

ABSTRACT:
The flue gases formed in the combustion chamber of the incinerator furnace, after they have reached a temperature of about 450.degree. C., are brought to a temperature of 200.degree.-250.degree. C. by shock-type cooling. Before this shock-cooling (quenching), heat recovery from the flue gases is carried out in a high-temperature stage from 1000.degree.-1200.degree. C. to about 450.degree. C. and, after the shock-cooling, in a low-temperature stage from 200.degree.-250.degree. C. to about 150.degree. C. As a result, a de novo synthesis is avoided in which dioxins and furans are formed from the components of the flue gases and the fly ash.

REFERENCES:
patent: 3831535 (1974-08-01), Baardson
patent: 4651655 (1987-03-01), Kunzel
patent: 4726302 (1988-02-01), Hein et al.
patent: 4762074 (1988-08-01), Sorensen
patent: 4788918 (1988-12-01), Keller
patent: 4860671 (1989-08-01), Glorioso
patent: 4909161 (1990-03-01), Germain
patent: 4932334 (1990-06-01), Patte et al.
patent: 4958578 (1990-09-01), Houser

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