Nitrogen Generators - A Perfect Solution for Injection Molding (Gas Assist) Industry

Molds are everywhere! From your vehicle’s dashboard to your cell phone case. Mold design is endless but one thing all molds have in common is that all molds must be pressurized. Nitrogen generators can assist the injection molding process by injecting high pressure nitrogen into your plastic.

At a controlled high pressure this has the benefit of overcoming sink marks or introducing a cavity without the requirement of a core. The result is increased production rates and an overall more professional product packaging.  Inert nitrogen can also help reduce heat in a grinding process, for which the end result is high quality uniform particles.

If you are in the injection mold industry – consider nitrogen generators as your source for compressed nitrogen.

CGT Saves World Renowned Refrigerator Manufacturer Thousands Through Use of Nitrogen Generators

Recently Compressed Gas Technologies worked with one of the world’s largest manufacturers of refrigerators  (Whirlpool) to find ways to reduce their nitrogen consumption.

After a meeting with the staff and a thorough review all of the processes that utilized nitrogen throughout the plant was implemented, CGT was able to find ways for Whirlpool to save a significant amount of money in regards to their nitrogen consumption.

We are able to eliminate areas where nitrogen was being misapplied.  Reduced weekly consumption by over 30,000 cf with a yearly savings of $17,000. By eliminating the inefficient high pressure nitrogen system that was no longer needed for laser cutting, reducing the nitrogen consumption by 50%. Estimated savings were $50,000.
And we also recommended the installation of a nitrogen generator with a high pressure booster, with 100% redundancy, for pressure testing of coils. This would eliminate the need for bulk liquid nitrogen. The payback is expected to take less than 2 years. The changes made in the plant were very small but the financial rewards were huge.

Can nitrogen generators help your process? Let us help you find out - contact us today regarding all our nitrogen gas generation options.

Compressed Gas Technologies - Nitrogen Generators turns 10!

CGT has grown into one of the leading providers of membrane and PSA nitrogen generators throughout Canada, U.S. and Mexico. This month we are celebrating 10 amazing years of providing on-site nitrogen generators to a variety of industries. Industries such as food packaging; tank blanketing; laser cutting and laboratories (LCMS) have all benefitted by being able to manufacture their own nitrogen from a compressed air source. A complete list of some of the companies that have benefitted from CGT's service can be found on our website. Contact Compressed Gas Technologies today to help you acess your nitrogen needs.

Nitrogen Best Used for Airplane Tire Inflation

The take-off in an airplane is just as important as the landing. During both of these crucial stages – there is one element that keeps an aircraft standing – literally…. The tires.

Aircraft tires are extremely complex in construction and are put through severe operating conditions multiple times in a day. This is why the Federal Aviation Administration (FAA) as well as major tire manufacturers (i.e. Michelin) recommend using nitrogen for Tire Inflation/Fuel Tank Inerting.   

 

 

Here are some of the reasons why nitrogen is best used for airplane tire inflation.

1. Non-corrosive. With nitrogen tire inflation, you have an additional safety factor in that nitrogen is an inert gas that will not support corrosion within wheels and tires.
2. Non-flammable. Nitrogen is very inert. About 70% of the earth’s atmosphere is Nitrogen.
3. Nitrogen performs well under temperature changes. Aircraft tires generally operate at high pressures. Tires that are inflated with nitrogen minimize expansion and contraction due to extreme changes in temperature and pressure experienced while in flight. Regular air under pressure can become explosive.
4. Nitrogen maintains volume at high altitudes. Also, nitrogen is more compatible with rubber compounds, therefore the deflation rate in the airplane tires is longer.

For more information on how nitrogen generators can help with airplane tire inflation, speak with an experienced nitrogen generator supplier or visit our Aircraft Tire Inerting page on our website.

We’ve Struck Oil… with Nitrogen Generators

Enhanced Oil Recovery (tertiary recovery) involves extending the life of oil and gas reservoirs through a variety of fluid / chemical injections into existing reservoirs.  Enhanced oil recovery can be achieved in a few different ways – by gas injection, by chemical injection, thermal recovery, or by microbial injection (utilized less often due to higher cost).  Membrane Nitrogen injection is one of several fluids that can be used for enhanced oil recovery (EOR).

Nitrogen injection is one of the most commonly used approaches in enhanced oil recovery as it allows control over the oil pressure. Nitrogen injection at distributed wells throughout a reservoir reduces the thickness of the oil as the nitrogen mixes with it. Re-pressurizing a reservoir with air would cause the oil to ignite into flame – therefore gas injection is better suited.
 
By utilizing a membrane nitrogen injection, production in an oil reservoir can be improved by 2 – 3 times over the existing production rate.  Nitrogen requirements for EOR range from 320 scfm to over 3200 scfm. The MAXIGAS PSA nitrogen generator permits nitrogen flows from 70 scfh to 5225 scfh.

Contact a nitrogen generators supplier today for your EOR project.

Nitrogen Generators Can Decrease Chances of Combustible Dust Explosions in Dust Collectors

Over the last 30 years, more and more accidents involving dust collector explosions are being reported. The purpose of a dust collector is to improve the air quality in industrial facilities by removing particle matter from the air and the working environment and converting it to safer breathing air. The trick is that sometimes - depending on the industry that is using the dust collector – the actual dust being collected may have a combustible aspect which could result in a combustible dust explosion. In the United States alone there have been at least 350 combustible dust explosions. The scariest part about this is that in most instances, those injured were unaware that a hazard was present to begin with; a hazard that needed to be monitored carefully.

Depending on your industry’s process and application, combustible dust can be present in many different forms (i.e. metal dust, wood dust, plastic resin dust, etc.) and multiple sizes. Combustible dust can be produced in facilities you may not have even thought of – food, wood, plastic, rubber, pharmaceuticals, coal, grain and more.

As a precautionary measure, dust collectors are introduced to absorb this combustible dust and decrease the risk of any fires which could not only injure your employees but decrease your plant’s efficiency whereby your process needs to be shut down for repair or replacement for an extended period of time.

Nitrogen can be introduced into your dust collector for explosion prevention. Instead of using only oxygen in the dust collector process, a nitrogen generator can convert some of the oxygen to nitrogen thereby decreasing the chances of a dust collector fire.

Membrane nitrogen generators or PSA (Pressure Swing Adsorption) generators are best suited to assist any industry where dust collectors are a necessity.

Speak to an experienced nitrogen generator supplier to ensure that you choose the generator best suited for your process.

Nitrogen Generators Benefit Rapid Prototyping Industry

Selective Laser Sintering (an additive layer-by-layer process) requires a high power laser to fuse small particles of plastic, ceramic and metal together into a 3D prototype. Because rapid prototyping (or SLS) is a process actionable only at high temperatures it is important to ensure your process is safe and that you are operating at maximum efficiency. Nitrogen generators can assist in this application.

A membrane nitrogen generator is your best option for this application as membrane generators can virtually operate themselves without the assistance of a controller. Nitrogen purity in a membrane generator is adjustable from 95 - 99.9%.
The desired flow and purity required for your rapid prototyping process will determine how many membrane modules will be utilized. Once the air in your SLS process has passed through the membrane bundle(s) it is nitrogen that is used to inert the chamber during the process.

Contact an experienced nitrogen generator supplier if you have specific questions regarding how the generator can assist your process or any concerns that you may have.