2. A process and factory for sealing non compressor and expander in a factory producing nitric acid by double pressure method

摘要

Process for Sealing Compressor Expander of residual gas in NO2 and HNO3 by dual pressure Plant oxidizes NH3 at low pressure, does not Rust, compressed at high pressure, and absorbs to HNO3.Where It is not sealed Compressor and Expander Waste gas with residual gas Heat exchangers; and production of HNO3.