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.F 1 <br /> 4 <br /> ions emitted from unit = 1.73 (mg/m3) <br /> ethy]benzene concentrat <br /> ethylbenzene mass rate emitted from unit = .0233 (lbs/day) <br /> ions emitted from unit = 17-3 (mg)m3) <br /> total xylenes concentrat <br /> total xylenes mass rate emitted from unit = .233 (lbs/day) <br /> 46p <br /> 5. OPERATING SCHEDULE <br /> `operating period will be 24 hours per day, 7 days a eek, and 52 weeks <br /> The maximump <br /> per year. } <br /> i . <br /> 6. PROCESS WEIGHT r <br /> The maximum concentration,of vapors that may be handled by the VO 150 emissions unit <br /> is about 8,000 mg/m31.TPHg' At this level with 150 scfm air flow, the process weight of TPHg <br /> l is about 108 pounds per day. Assuming a 95% destruction efficiency through the emissions unit <br /> there!wdl be a maximum of about 5.4 pounds per day of TPHg emitted by. the unit. <br /> 7. FUELS AND BURNERS USED <br /> No fuels or burners are used with the proposed unit. There is"a 9 KW electrical resistance <br /> heater in the unit. NF <br /> f S. <br /> 8. PROCESS AND INSTRUMENTATION FLOW DIAGRAM <br /> Figure 4 has a diagram showing the process and instrumentation of the proposed. <br /> emissions unit. The pertinent temperatures, pressures, and flow rates are indicated on the diagram. <br /> 9. EQUIPMENT DRAWINGS <br /> Figure 4 also has a drawing of the emissions unit as supplied by the manufacturer, <br />