In-House N2/O2 generation

According to Hi-line, many of the large gas-producing companies only offer N2 at UHP (Ultra High Purity) of 99.99999%, yet the application may only require a purity of only 98% or 95%. Hi-line says that when it designs an N2 system, the cost of a 98% generator against a 99.99999% generator of the same flow is 10 times cheaper.

A variable speed type technology is used, where the generator only runs when the process is calling for N2, and when no N2 requirement is needed, the Hi-line generator goes on stand-by. On start up, N2 at the exact purity required is delivered due to a buffer/polishing tank along with a high purity storage vessel on the skid, meaning no down-time whilst waiting to reach purity. 

Bottled gas is sold at high pressure, to enable smaller footprint, and regulated down. However, if 30-40 bar application is needed, Hi-line can add a booster to the skid to give the exact pressure required. 

The cycle is therefore continuously producing high-quality nitrogen. Used correctly, the CMS is fully regenerative and has a life span over 40,000 operational hours. Nitrogen gas is used in a wide range of industries where safe, inert environments are required, such as the petroleum, chemical, pharmaceutical, paint and varnish sectors, as well as in the production of ferrous and non-ferrous metals, together with electronic and glass products.

Hi-line comments that in-house N2/O2 generation provides independence from third-party gas supplies and market price fluctuations. There is also the elimination of logistical tasks associated with bottles or liquid nitrogen, as well as the management of suppliers. In addition, the equipment is modular and flexible, and has low maintenance requirements.

Hi-line is a member of the British Compressed Air Society and part of the ‘Made in Britain’ campaign that promotes the best of British manufacturing.