Meet Your Nitrogen Supply Standards

Many critical industrial operations require nitrogen gas. From inerting and purging to heat treating to refining and chemicals, the many roles of nitrogen make consistent supply lines a constant priority in many different settings. Unfortunately, the liquid nitrogen supply scheme, in which liquid nitrogen is generated offsite and shipped to the site to be vaporized, is still used by operations which could easily generate their own onsite. In fact, onsite nitrogen generation tends to produce net cost savings even before factoring in the savings generated by simplified environmental compliance, especially in remote facilities where the need for nitrogen gas is most prominent. Onsite gas generation completely eliminates the offsite gas supply chain, allowing your facility resource independence and more control over the quality and quantity of nitrogen. 

Cosmodyne’s State-of-the-Art Nitrogen Generation Systems

As industrial air separation and gas generation veterans, Cosmodyne prioritizes quality and reliability in our solutions. We have decades of experience within our field, and we’ve led the charge through every technological advance along the way. We offer 2 unique series of nitrogen generators that can be tailored to fit your operation: the liquid-assist LGN Series and the efficient self-refrigerated TGN Series.

The LGN Series N2 cryogenic nitrogen generator produces 600 to 2500 Nm3/hr of gaseous nitrogen at whatever purity you require. Because this series takes a small supply of liquid nitrogen for purification and refrigeration processes, there’s no need for a turboexpander. The LGN Series consists of 3 simple modules that make implementation a relatively quick and easy affair: the Air Compressor Module (ACM), the Warm Equipment Module (WEM), and the Cold Box Module (CBM).

The TGN Series nitrogen generator is designed with larger-scale operations in mind, producing up to 5000 Nm3/hr of gaseous nitrogen with the purity one should expect from cryogenic processes. This nitrogen generation plant uses an in-house designed and built NIKKISO ACD Turboexpander to for process refrigeration. The TGN Series consists of the same 3 modules as the LGN but on a larger scale. 

Like all of Cosmodyne’s offerings, both of these nitrogen generation plants have a modular design to make shipping and setup easy, even in hard-to-reach or rural areas of the world. They also feature both automated and remote process control, giving you even more operational options. 

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Cosmodyne’s standard small scale LNG liquefier, the LINEX, uses a closed loop, gaseous nitrogen expansion refrigeration cycle for simple, safe, and efficient operation. We have been delivering LNG utilizing this time-tested process cycle since 1958. Our small-scale LNG system has led the charge on nearly every technology update along the way. In addition to its reliability, Comsodyne’s LINEX is designed with transportability and adaptability in mind, meaning that even the most remote locations can easily add this system to their facility. 

Bringing a Heightened Practicality to Operational Efficiency

The simplicity of Cosmodyne’s small scale LNG plant design allows for the equipment to be skid-mounted and modularized for easy site erection, installation, and even relocation if necessary. Furthermore, the environmentally-friendly nitrogen gas allows for simpler site permitting, eliminates the need for hydrocarbon refrigerant storage, and enables easier maintenance procedures (no in-and-out purging required). The nitrogen cycle is easy to operate and control, simply because the nitrogen cycle is less sensitive to changes to feed gas composition and ambient conditions. The complexity of changing the mixture of several hydrocarbons to match the changing gas composition or ambient conditions to maintain optimal efficiency is eliminated. 

The LINEX system efficiently recovers energy available from near isentropic expansion of the nitrogen refrigerant, guaranteeing high efficiency performance. In fact, the LINEX nitrogen cycle has an operating range of 100% to 25% with proportionate energy savings, which helps ensure that you’re getting the most out of your operations budget based on your LNG demand. Considering the generally steep ramp-up period of the average LNG facility, this operability range only becomes more important. 

Beyond its high energy efficiency, our closed-loop SSLNG system offers another key trait: flexibility. Operators can easily alter the sub-cooling of the LNG (i.e LNG product temperature setting) as needed.  Additionally, every LINEX system can be fitted with a heavy hydrocarbon separator (our Skimmer) to control the LNG product specification to meet the quality required for vehicle-grade natural gas or virtually any other product requirements. Additionally, the Skimmer can also be used to recover other natural gas liquids such as ethane or propane.

Cosmodyne’s Industry-Leading Solutions

While our closed-loop small scale LNG liquefaction plant is flexible enough to meet many different industrial needs, there are some facilities in which the LINEX may be too much or not quite enough. For those, Cosmodyne also offers engineered cycles to meet any industrial requirements, such as open-loop nitrogen for smaller capacity plants or single-mixed refrigeration process cycles for larger capacity plants. If you’re interested in bringing new levels of efficiency and cost-savings to your operations, please feel free to reach out to Cosmodyne at any time! We offer industry-leading support, both onsite and remotely.

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