Catalogue of Polosh Technologies 2012 Part 2 - Polonia

3) HIGH PRESSURE PURIFICATION OF PROCESS CONDENSATES IN
AMMONIA PRODUCTION PLANTS
A plant for high pressure condensate degassing serves for removal of ammonia and organic
compounds, mainly methanol, from the process condensate. In high pressure process large
heat losses are avoided what happens in case of low pressure processes.
Stripping technology utilizes overheated stream directed to natural gas steam reforming at
pressure of approx. 4 MPa. Impurities are recycled to technological stream and then to the
primary reformer where they are decomposed to H2, CO and N2. Pure condensate containing
only traces of ammonia and methanol is fed to medium and low pressure steam boilers and its
surplus is recycled to a demineralization unit as a raw material for demineralized water
production which can be used for feed high pressure boilers.
Process characteristics:
� possibility of the process application in large capacity syngas systems operating with
natural gas steam reforming and coal gasification processes;
� ammonia and methanol recovery;
� reduction of demineralized water consumption by approx. 1.25 t/t NH3;
� reduction of exhaust gas temperature by approx. 60 �C;
� the process is not harmful to the environment.
INS offer includes a license, know-how, basic design and detailed engineering, supervision
during erection and start-up as well as a delivery of key-equipment, piping, and control system.
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