Furnaces – Process – Treating fuel constituent or combustion product
Patent
1994-11-18
1996-08-20
Bennett, Henry A.
Furnaces
Process
Treating fuel constituent or combustion product
110245, 432 14, 432 58, F23B 700
Patent
active
055468756
ABSTRACT:
A process of improving overall quality of coals or other solid fuels comprising heat treating those coals in a controlled, spontaneous, fluidized bed reactor system. The bed system is of such a geometry that in combination with the control system a higher velocity region exists where the fluidizing gas and fuel are fed than where the treated solids exit. The offgas exiting the top of the reactor has a velocity of the average of the inlet gas velocities. Treated coal is withdrawn intermediate to top and bottom. Residence time is controlled by the amount of the solid fuel feed, the location of the treated solid fuel overflow, and the temperature is maintained by oxygen to flue gas ratio, feedstock size and fluidizing velocity. The unit can be operated in a drying mode or a devolatilization mode, to control volatiles, moisture and fines.
REFERENCES:
patent: 2419245 (1947-04-01), Arveson
patent: 3671402 (1972-06-01), Wenzel et al.
patent: 4324544 (1982-04-01), Blake
patent: 4325311 (1982-04-01), Beranek et al.
patent: 4349969 (1982-09-01), Stewart et al.
patent: 4645452 (1987-02-01), Henin et al.
patent: 4725337 (1988-02-01), Greene
patent: 4809620 (1989-03-01), Cosar
patent: 5009173 (1991-04-01), Temelli
patent: 5020456 (1991-06-01), Khinkis
patent: 5069171 (1991-12-01), Hansen
patent: 5078065 (1992-01-01), Tsunemi
patent: 5087269 (1992-02-01), Cha et al.
patent: 5095827 (1992-03-01), Williams
patent: 5242662 (1993-09-01), Toth
Grewal Nanak S.
Hajicek Douglas R.
Mann Michael D.
Selle Stanley J.
Bennett Henry A.
Energy and Environmental Research Center Foundation
Tinker Susanne C.
LandOfFree
Controlled spontaneous reactor system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Controlled spontaneous reactor system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled spontaneous reactor system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2323235