The oxygen purity produced by pressure swing adsorption (PSA) processes is limited to 95%, with the rest being essentially argon. This oxygen grade is suitable for many industrial applications. However, medical applications, cylinder filling, oxyfuel cutting in metal fabrications, and fuel cells technology with recirculation loop, among others, require oxygen with a higher purity (99% or above).
99.6% high purity liquid oxygen device can complete the challenge perfectly.
|LN2 Purity||-||-||-||≤5ppmppm O₂||≤5ppm O₂|
Comparing with gaseous air separation plant, 99.6% high purity liquid oxygen unit need more cooling consumption.
According to different yield of 99.6% high purity liquid oxygen unit, we adopt various refrigerating cycle processes, like booster-expanding refrigeration, low temperature pre-cooler refrigeration, recycle compressor with high-low pressure expander refrigeration, etc. to reduce the power consumption.
DCS or PLC system are used, aided by on-site instruments, to make the complete system stable, reliable and easy to operate.
1) Strict contract auditing involved all departments to assure the feasibility of each order.
2) Process design and validation before bulk production.
3) Strictly control on all raw and auxiliary materials, all raw materials reach the world advanced level.
4) On-site inspection to all processes, inspection record keeps traceable for 3 years.
5) All inspectors are skilled with international certificates.
6) Qualified and professional welders guarantee welding quality.
7) 100% inspection of finished systems before shipment.
8) Regular training for inspection staff