MIDIGAS nitrogen gas generators from Parker domnick hunter produce nitrogen gas from compressed air and offer a cost-effective, reliable and safe alternative to traditional nitrogen gas supplies such as cylinder or liquid. Nitrogen is used as a clean, dry, inert gas primarily for removing oxygen from products and/or processes. MIDIGAS provides an on-demand, continuous source of nitrogen gas which can be used in a wide range of industries such as food, beverage, pharmaceutical, laboratory, chemical, heat treatment, electronics, transportation, oil and gas and laser cutting.
HOW IT WORKS?
MIDIGAS operates via the pressure swing adsorption (PSA) principle to produce a continuous stream of nitrogen gas from compressed air. Pairs of extruded aluminium columns are filled with carbon molecular sieve (CMS). Pre-treated compressed air enters the bottom of the ‘online’ column and flows up through the CMS. Oxygen and other trace gases are preferentially adsorbed by the CMS, allowing nitrogen to pass through. After a pre-set time the on-line column automatically switches to regenerative mode, venting contaminants from the CMS. Carbon molecular sieve differs from ordinary activated carbons as it has a much narrower range of pore openings. This allows small molecules such as oxygen to penetrate the pores and separate from nitrogen molecules which are too large to enter the CMS. The larger nitrogen molecules by-pass the CMS and emerge as the product gas.
In addition to a short pay-back period, the cost-effective solution removes costs associated with traditional gas supplies including refills, order processing, tank rental and delivery charges and eliminates future gas company price increases. Whilst operating from a standard compressed air supply, the economy mode and on-demand function respectively offers control over nitrogen production, flow rates and purity levels and therefore limits costly wasted gas or liquid boil off to facilitate excellent energy savings. The 24/7 operation also removes the risk of gas running out and thus the loss of production time.
Convenient and Safe Alternative
The system can be installed simply within a compressor house or production area with standard piping, eliminating the need for any special requirements. In addition, low maintenance requirements ensure minimal production downtime. Nitrogen is produced at low pressure, eliminating safety hazards usually associated with high pressure cylinder gas. Potential manual handling concerns are also removed.