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MANUFACTURER DATA ON THERMAL OXIDIZER <br /> (REFERENCE: USTEC, September 20, 199 1) <br /> 1 <br /> 34 THERMAL OXIDATION UNIT <br /> 1 <br /> The thermal oxidation unit is illustrated on Figure 16 A detailed description of the unit is <br /> presented in the following paragraphs <br />' 5 4.1 Regenerative Oxidahon Process <br /> The oxidizer bed consists of a reinforced, insulates, fabricated-steel chamber filled with silica <br /> gravel Electrical heating elements are distributed in the bed Passages are located above and <br /> below the oxidizer bed to allow the process gas flow to be reversed through the bed In order <br />' to avoid an uneven temperature distribution throughout the bed, the gas flow is controlled by <br /> an automatic valve that changes the direction of the gas flow at regular intervals tvpicaily <br /> ranging from 60 to 4$0 seconds This maintains a uniform temperature distribution throughout <br /> the entire bed Maximum heat recovery is obtained when incoming process gas is preheated <br /> through the exchange of exhaust gas heat energy within the silica-based oxiaizer bed <br /> 20 <br /> 1 <br /> i til <br /> 1 <br /> 1 <br />