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• <br />EQUIPMENT LIST: <br />Caustic Solution Storage Tanks with Pumps <br />Caustic Scrubbers with Pumps, Exchangers and Recycle Drums <br />Blowers and Stack <br />Instrumentation and Controller <br />II. ELEPHANT TRUNK SYSTEM <br />Project No. A-44 <br />PURPOSE: <br />To provide a vacuum header system throughout the La Porte Site process <br />areas to collect and remove phosgene, hydrochloric acid, chlorine, <br />carbon monoxide and isocyanate vapors which are released during equip- <br />ment maintenance sampling or equipment failure. <br />PROCESS DESCRIPTION: <br />The project consists of over 200,. hose stations located in the area of <br />potential vapor sources in the six plants, A, D, E, K, L and M, at the <br />La Porte Site. The stations will be connected to a header pipe system. <br />A vacuum will be pulled on the header system(s) by an air moving <br />device(s) through a knockout drum. The air moving device(s) will <br />discharge into a scrubber tower or scrubber stack where the pollutants <br />will be absorbed and/or reacted out. <br />FREEPORT FACILITIES <br />I. P.0. VENTS/BOTTOMS TREATMENT - B-1300 <br />Project No. A-45 <br />PURPOSE: <br />To collect vent streams from the Crude Propylene Oxide Plant containing <br />125,000 pounds per month of volatile organic compounds (VOC's) and <br />dispose of them by incineration, using liquid chlorinated hydrocarbons <br />(RCL's) as fuel. <br />A-2 <br />