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<br />e <br /> <br />e <br /> <br />PROCESS DESCRIPTION: <br /> <br />The vent stream will be fed directly to a "Throx" incinerator fueled by <br />waste RCL's, where the VOC's and RCL's will be burned, forming HCI, H20 <br />and CO. The incinerator has an HCI scrubber on the combustion gases, <br />where the HCI will be absorbed and recovered as aqueous HCl, which will <br />be returned to the crude propylene oxide plant for use in the process as <br />bottoms treatment. <br /> <br />The vent gases, containing small amounts of HCI, will go to a caustic <br />scrubber where the remaining HCI will be removed. The remaining vents <br />will be released to the atmosphere. The spent caustic stream will go to <br />an existing bio-oxidation unit where any dissolved organic chemicals <br />will be removed before the aqueous stream is released to the Plant B <br />outfall. <br /> <br />EQUIPMENT LIST: <br /> <br />Throx Unit: <br /> <br />Incineration unit with heat recovery, instrumentation, <br />condensate system, pumps <br /> <br />HCL Scrubber: <br /> <br />FRP tower, acid pumps, instrumentation <br /> <br />Caustic Scrubber: <br /> <br />FRP tower, pumps, instrumentation <br /> <br />Blower and Stack: <br /> <br />Blower, stack, instrumentation <br /> <br />II. B-51 CLASS I LANDFILL <br />Project No. W-162 <br /> <br />PURPOSE: <br /> <br />To collect and store approximately 30,000 cubic yards of solid and <br />semi-solid wastes generated in Texas Operations from late 1986 through <br />1990. <br /> <br />A-3 <br />