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US 4,126,000 AGranted
System for treating and recovering energy from exhaust gases
OwnerHarald F. Funkinventor
Life of this patent
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Abstract
The sensible and latent heat of hot exhaust gases generated in fuel burning furnaces, roaster, cement kilns, and the like is transferred to a power fluid in the boiler of an external combustion engine. The cooled gases are purified by subliming or "freezing out" harmful, less volatile components. The purified gases are discharged to atmosphere without using flue gas stacks. The sublimed or "frozen out" impurities are collected and neutralized.
Claims23
A method of treating hot exhaust gas, comprising the steps of:
- (a) removing particulate matter from the gas;
- (b) productively reclaiming a portion of the heat energy of the hot gas by passing the hot gas in indirect heat exchange relationship with a fluid to concurrently cool the gas and heat the fluid;
- (c) further cooling the gas to effect a separation of harmful, less volatile components from more volatile components;
- (d) compressing the gas at some time prior to the completion of step (c);
- (e) discharging the more volatile components to atmosphere;
- and
- (f) neutralizing the less volatile components.
4 more elements
Apparatus for treating hot exhaust gases comprising:
- (a) separator means for removing particulate matter from the hot gas;
- (b) heat exchanger means receiving said hot gas following particulate removal for productively reclaiming a portion of the heat energy thereof by passing the hot gas in indirect heat exchange relationship with a fluid to concurrently cool the gas and heat the fluid;
- (c) condenser means for separating the resulting cooled gas into less volatile and more volatile components;
- (d) discharge means for discharging the more volatile components to atmosphere;
- (e) recovery means for recovering and neutralizing the less volatile components and;
- (f) compressor means for compressing the gas at a point upstream of said recovery means.
3 more elements
Dependencies are inferred from the claim text.