Friday, October 25, 2013

Use of Nitrogen Generators at Power Plants

Close-up of N2-GEN LPS225 Installation
Power plants use Nitrogen Generators for multiple applications.  Here, we'll discuss some of the more common applications as well the reasons that plant managers choose Nitrogen Generators as their preferred N2 gas source.

Power Plant Applications

Nitrogen Purge for HRSG Wet and Dry Boiler Lay-Up - Corrosion is a real threat to the performance, safety, and longevity of boilers and boiler tubes at power plants. Nitrogen is an inert gas that protects against the corrosion of inner walls of boiler tubes, condensers and wetted parts. N2 gas works to displace the presence of oxygen, one of the key players in the corrosion triangle, thereby effectively inhibiting the formation of corrosion. When the boiler units are offline during a lay-up, Nitrogen Generators provide an N2 blanket in the boiler drums.
Case Study: A Power Plant in Northeastern United States recently installed a South-Tek Systems' Nitrogen Generator in two of their combined cycle facilities after realizing the possibility of corrosion in their boilers. The capacities of the plants are 407 / 500 Megawatts and are used for dry and wet lay-ups with one volume purge every 24 hours. One of the facilities is a peaking facility, so the Nitrogen Generator will run more frequently. When the units are offline, they provide a N2 blanket in the boiler drums. The Nitrogen Generator is also used to blanket on the tube side of the feedwater heater during extended outages. Their other plant is a base loaded plant, so the Nitrogen Generator is used for boiler drum blanketing when the unit is offline for an extended period of time. With a Nitrogen Generator in place, operations are running smoothly and their concern for corrosion no longer exists.
Ammonia Purge - Some Power Plants use Nitrogen Generators for blanketing ammonia storage tanks. Nitrogen is connected to the ammonia storage tank's vapor space to provide a nitrogen blanket on the system. The intent of using a nitrogen blanketing system on aqueous ammonia tanks is to prevent the ingress of air to the tank vapor space during low ambient temperature conditions when the vapor pressure of the ammonia drops below atmospheric pressure.

Natural Gas Purge - An increasing number of Power Plants are utilizing natural gas. When a leak occurs, the site evacuates natural gas using Nitrogen within the piping system before repairs are made to reduce the possibility of explosions. When performing this procedure, the nitrogen fill valve is opened to pressurize the pipe. A pressure gauge is used to monitor pressure loss and check for leaks. Precautions are taken when releasing the purged gas into the atmosphere such as proper ventilation. Being inert, Nitrogen reduces the risk of explosions and extends the life of Power Plant equipment.

Why Use a Nitrogen Generator?

Nitrogen Generator equipment is increasingly used in power plant applications due to the ability to produce an unlimited supply of Nitrogen on-demand at the facility, eliminating missed deliveries, escalating costs and contracts. This equipment is also a convenient, safe, and more reliable alternative to delivery and handling of bulky, compressed gas cylinders or tanks.

Why South-Tek Systems?

South-Tek Systems is a world leader in designing and manufacturing Nitrogen Generating Equipment. We have extensive experience working with the power generation industry.  Our Nitrogen Systems are safe, reliable, and cost effective. Plus, we offer engineered solutions that help us monitor and track installed systems for performance, optimization, and safety.

Contact South-Tek Systems today to learn how our N2-GEN Systems can benefit your power plant facility: 888-526-6284.

Friday, October 18, 2013

Using Nitrogen in Animal Feed Storage

When it comes to storing perishable products like animal feed, oxidation and moisture control are ongoing concerns for facility managers. The use of Nitrogen gas in animal feed storage can prevent oxygen from entering the storage atmosphere and greatly reduce the chance of moisture entering the containers.

How Does Nitrogen Gas Help with Animal Feed Storage?

By displacing moisture and reducing the oxygen levels in feed storage, facilities can prevent the product from going bad and also lengthen the feed's shelf life. After all, it may take days or weeks before the feed reaches the consumers, so maintaining optimal storage conditions is a must. Nitrogen works to preserve the feed's quality and lengthen shelf life by taking the place of oxygen in the packaging and/or storage material. This can be done through the assembly process by pumping Nitrogen into the containers from a direct line.

Why Use a Nitrogen Generator?

In years past, many animal feed facilities relied on expensive gas cylinders to store their Nitrogen supply. This usually required high-dollar yearly contracts with gas suppliers. Also, it left the facilities vulnerable to run-outs during peak production times. Modernly, more facilities are turning to on-demand Nitrogen through revolutionary Nitrogen generators. These generators are installed at the point of process in the facility and produce Nitrogen gas from the surrounding air. Because the Nitrogen supply is directly pulled from the air we breathe, there's little to no chance of ever running out. This not only keeps the facility operating efficiently and safely, it can save the facility hundreds of thousands of dollars annually.

Contact South-Tek Systems 

South-Tek Systems is a leading manufacturer of Nitrogen Generators. We offer a wide selection of N2 generation systems to suit a variety of industrial and manufacturing applications. Animal feed storage is just one of the many applications in which Nitrogen generators can be used. Wine storage, absorbent materials production, metal parts production, fire protection systems and laboratory applications are some of the other industries that can benefit from an on-site Nitrogen Generator.

Contact South-Tek Systems today to learn more or to request a free cost analysis for your facility. You might be surprised to see just how much money your company can save by switching to a Nitrogen Generator. Call (888) 526-6284 to learn more about how a Nitrogen Generator can benefit your storage facility.

Friday, October 4, 2013

Bottling with N2 Gas

In the food and beverage industry, bottling is used for a wide array of storage solutions. From bottled beverages to medicines to cleaning products and more, there are lots of modern products that are packaged and stored in bottles. To prevent the product inside the bottle from going bad, manufacturers often use Nitrogen gas to displace oxygen and moisture. The most efficient way to do this is with the use of a Nitrogen Generator (See more: Bottle Manufacturing with Nitrogen Gas).

Nitrogen Generators create an on-demand supply of N2 gas from the surrounding air. This prevents the risk of accidental run-out during critical operation times and can be significantly less expensive than relying on high-priced contracts with gas suppliers.

Because Nitrogen is a dry, inert gas, it is the best choice for preserving and storing bottled products. Here are just a couple reasons why:
  • The dew point of Nitrogen is extremely low, which means there is very little chance of moisture developing within the bottle when Nitrogen is used to displace the oxygen. 
  • Its inert properties prevent it from being combustible, which makes it a very safe gas to work with in a manufacturing environment.
Without the use of Nitrogen, the risk of oxidization is greatly increased. Oxidization is a reaction that occurs when oxygen and moisture are present. In the bottling process, if moisture and oxygen are present, the quality of the bottled product can be compromised. Mold may grow, the product may lose its effectiveness, taste may be altered or carbonation could be affected. By using Nitrogen to displace the unwanted elements, the product can be preserved to increase shelf life and the consumer can be satisfied.

A Nitrogen Generator installed at the point of process allows the bottling facility to reduce production costs, maintain environmental safety and help keep the operation running smoothly. Many manufacturing facilities are surprised to learn just how much money they can save by switching to a Nitrogen Generator from South-Tek Systems. South-Tek Systems is one of the leading manufacturers of on-demand Nitrogen generation systems. They offer free cost analyses to help facilities see how much they could potentially save by switching from high-pressure N2 cylinders to an on-site N2 Generator.

To receive your free analysis, visit or call (888) 526-6284. We look forward to answering your questions and assisting in your Nitrogen generation needs.


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