500 STPD Nitric Acid Plant
Stock #ZG63745
Used 500 STPD Nitric Acid Plant
Built in 1974.
Plant uses synthesis by oxidizing ammonia to make nitrogen dioxide, then absorbed over a catalyst and water to
form nitric acid. New major equipment was installed during 1994 - 2013. Atmospheric air is
filtered and compressed in a centrifugal compressor, driven by a hot gas expander
and steam turbine. Liquid ammonia is vaporized, superheated and filtered and is joined by
the compressed air stream in a double mixing operation based on orificing. Combined
ammonia-air mixture enters the converter where the ammonia stream ignites and burns
very rapidly to form nitric oxide and water vapor. Hot reaction products and excess air
leaving the converter pass through a waste heat boiler and heat exchanger to: cool the
process gas before entering the cooler condenser; recover heat by the generation of
steam; and recover power by heating the tail gas for use in the hot gas expander. Partially
cooled process gas enters the cooler condenser where the water formed during ammonia
burning is condensed, forming weak nitric acid. Weak acid is separated from the gas
and transferred to the top of the absorber, where the weak acid and additional water are
fed through the top tray and counter act with the gas moving up the absorber through the
bottom. Product acid passes through a bleacher where dissolved oxides of nitrogen
are stripped from the acid using a countercurrent flow of air, before flowing into the
storage tank.
Location: CANADA
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Nitric Acid Plant with Capacity 200 Tons/Day
Stock #ZG62366
Used nitric acid plant with capacity 200 tons/day. Uses the ammonia oxidation process to produce 60% nitric acid. Built in 1973 by the D M Weatherly Company and shut down in 2001.
The following main sections are included:
- Ammonia terminal storage and feed system.
- Weak nitric acid oxidation processing system (AOP), 60% concentration, 185 - 215 tons/day capacity.
- Nitric acid concentration processing system.
- Sulphuric acid concentrating system.
- Air compressor and boiler services area.
More detailed equipment list available on request.
Location: USA
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Formaldehyde Plant, 200 TPD
Stock #XRG8518 Sold
Used formaldehyde plant with total capacity of 200 TPD of formaldehyde 37% and 260 TPD of formaldehyde based resins. The plant consists of (1) unit with capacity of 90 TPD made in 2000, (1) unit with capacity of 110 TPD made in 2002, equipment to produce approximately 260 TPD of resins. Plant is reportedly made by cal polymers and shut down in July 2013. Plant consists of the following major equipment:
- blower / process air system
- hot oil condenser
- reactor / liquid hot oil system
- vaporizer / after cooler system
- absorber system
- catalytic converter
- pumps and motors
- instruments and controls
- valves and fittings
- motor control centre
- (2) 25 M3 reactors, (2) 10 M3 reactors, (1) 17 M3 reactor, (2) 12 M3 reactors, (2) 25 M3 cooling reactors.
Currently only available as a business for sale. More information on request.
Location: EUROPE
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