System for treating and recovering energy from exhaust gases
A method and apparatus for treating hot exhaust gas to purify the gas and/or to recover the heat values therein includes removing particulate matter from the gas, cooling the gas by transferring its heat to regenerators and purifying the cooled gas by subliming or ''freezing out'' harmful, less volatile components. The heat energy of the exhaust gas may be recovered by passing a heat exchange medium, such as compressed air and/or purified cooled gas, through the heated regenerators. A major advantage of this method and apparatus is that exhaust gases at 300/sup 0/-350/sup 0/ C. may be purified and the heat energy recovered using thermodynamically efficient regenerators. As a result the air preheater stage of conventional boilers or combustion units, which comprise 60% to 70% of the heat exchange surface area, may be eliminated.
- Assignee:
- EDB-85-156289
- Patent Number(s):
- US 4513573
- OSTI ID:
- 5332720
- Resource Relation:
- Patent File Date: Filed date 9 Sep 1983; Other Information: PAT-APPL-530650
- Country of Publication:
- United States
- Language:
- English
Similar Records
System for treating and recovering energy from exhaust gases
System for treating and recovering energy from exhaust gases
Related Subjects
42 ENGINEERING
EXHAUST GASES
AIR POLLUTION ABATEMENT
HEAT RECOVERY
HEAT RECOVERY EQUIPMENT
DESIGN
POLLUTION CONTROL EQUIPMENT
BOILERS
COOLING
HEAT TRANSFER FLUIDS
PURIFICATION
ENERGY RECOVERY
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
POLLUTION ABATEMENT
RECOVERY
WASTES
320304* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization
424000 - Engineering- Pollution Control Equipment- (1980-1989)