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Coca-Cola Enterprises - West <br /> USTEC Job No. 90054 03 <br /> When the hydrocarbon contaminated process gas passes through the silica bed and approaches <br /> the heating elements its temperature rapidly increases. Complete combustion occurs when the <br /> ignition point is reached in the middle of the oxidizer bed due to the oxygen content of the <br /> process gas. With a sufficient concentration of hydrocarbons in the incoming process gas(about <br /> 200 ppm gasoline), the heat energy is sufficient so that the destruction reaction of the <br /> hydrocarbons is self-sustaimng and no additional heat energy is required during the process <br /> operation <br /> I' 5 4.2 Fan, Motor, and Drive <br /> The unit is equipped with a regenerative blower designed for continuous service The blower <br /> system also includes a flow control sampler, drive motor,belts, pulleys,and guards The blower <br /> ' and drive parameters are listed below <br />' Flow 600 cfm at 70°F <br /> Vacuum 12" Hg total <br /> Horsepower 40 (electric) <br /> The unit is capable of operation in this installation at 100 - 200 cfm without a major loss of <br />' efficiency <br />' 5.4.3 Heat Transfer Media <br /> The high temperature heat transfer media consists of a single porous bed of silica gravel, sized <br />' to provide the most efficient heat recovery while maintaining the optimum pressure drop for the <br /> application. <br />' 5 4.4 Bed Casing <br />' The bed casing consists of an all-welded construction stiffened to withstand the forced draft <br /> pressure requirements and lateral loads from the heat transfer media <br /> 21 <br />