Thermal regeneration outlet by-pass system and process

Claim 1

In a thermal regeneration system for processing an industrial exhaust gas flow or the like, the combination comprising: (a) a combustion chamber in which a high temperature range is maintained, (b) at least three separate stationary heat-exchange sections contiguous with and in communication with said chamber, each bed containing randomly disposed packing comprised of a plurality of solid heat exchange elements, (c) a plurality of stationary inlet means, each being coupled to one of said beds, for conducting said gas flow to said bed for passage through it into said chamber, (d) a plurality of stationary outlet means, each coupled to one of said beds, for conducting said gas flow away from said bed after the gas flow has passed outwardly through said bed from said chamber, (e) fueled heating means within said chamber for continuously producing or maintaining said high temperature range, said temperature range being considerably higher than the temperature range of the gas flow as it first is applied to the apparatus and sufficiently high to cause continuous thermal oxidation of said gas flow, (f) means for sensing a predetermined temperature within said combustion chamber, (g) means coupled to said chamber and to said sensing means for extracting a predetermined portion of the gases direct from said chamber when said sensing means detects said predetermined temperature, and (h) means coupled to said extracting means for mixing said extracted portion of gases with other gases from said exhaust which have been cooled by contact with at least one of said heat-exchange sections.