Method and apparatus for startup of a wet air oxidation unit provided with rotating air compressors driven by rotating expanders

摘要

Starting a wet oxidation unit by initially supplying a small part of full power to start the compressor-expander train, the resultant low volume of low pressure air being by-passed around the unit to expander inlet, heating and saturating this air, and allowing an increase in air and pressure volume providing additional power, and continuing this procedure until pressure is reached at which a small amount of this air can be admitted to the unit, gradually increasing the air to the unit and reducing the external heat and power to a shut-off point.