F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
257/29, 122/36,
F22B 1/00 (2006.01)
Patent
CA 1152060
ABSTRACT OF THE DISCLOSURE 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 vola- tile 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 300-350°C may be purified and the heat energy recovered using thermodynamically efficient regen- erators. As a result the air preheater stage of conventional boilers or combustion units, which com- prise 60% to 70% of the heat exchange surface area, may be eliminated.
369062
Funk Harald F.
Mcfadden Fincham
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