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<br />CORER UNIT <br />The Coker unit is an upgrading unit which converts the heavy <br />bottoms oil from the pyrolysis and oil recovery unit into lighter <br />products and by-product coke by thermal cracking. <br />FOUL WATER STRIPPER UNIT <br />The foul water stripper unit removes H2S and minor amounts of <br />ammonia (NH3) from foul water streams which leave the pyrolysis <br />and oil recovery unit, the gas recovery and treating unit, and <br />the Coker unit. The H2S and NH3 are sent to the sulfur recovery <br />unit where H2S is converted to elemental sulfur and ammonia is <br />converted to nitrogen. The stripped water is returned to the <br />pyrolysis unit for moisturizing processed shale. The foul water <br />• stripper is a conventional distillation column with a steam-heated <br />reboiler. There are no exits to the environment from the foul <br />water stripper. <br />UTILITY BOILERS <br />Two utility boilers which will burn fuel gas will be used at the <br />plant site for the generation of steam. <br />SCHEDULE <br />The construction of all proposed facilities will take approximately <br />48 months to complete. The tentative construction schedule is <br />shown in Figure D-3. The plant and mine complex will be arranged <br />as shown in Figure C-1. Mining and primary crushing of shale <br />D-16 <br />