FY95 Limited Energy Study Area B Nitric Acid Production Facilities, Holston ArmyAmmunition Plant, Kingsport, Tennessee

摘要

The purpose of this study is to identify and evaluate the technical and economicfeasibility of process or equipment modifications pursuant to conservation of energy and reduction of water consumption at the Ammonia Oxidation Process Facilities in Building 302, Area B. An adjunct requirement is to avoid proposed modifications which would impose additional maintenance and operation requirements. The following ECO's specifically identified by scope documents, were investigated: 1. Convert air compressor drive turbine from tailgas to steam or to steam augmentation. 2. Recover heat from product gas leaving the air preheater to produce steam. 3. Water conservation. Additional ECOs selected by the A/E to be studied include the following: 1. Insulate heat exchangers and tailgas piping. 2. Install preformed plate heat exchangers inside insulation on air preheater and tailgas heater vessels for heat recovery to a 30 psig steam system. 3. Inject air compressor intercooler and aftercooler condensate and steam condensate from the ammonia vaporizer into tailgas entering compressor drive turbine for increased power.