PSA process for the on-site production of nitrogen

Nitrogen gas is a basic product for the chemical industry. As an inert gas, it can be used in a wide range of applications covering various aspects of chemical production, processes, handling and shipping. As it does not react with most materials, it is, for example, an excellent blanketing and purging gas used to protect valuable products from harmful contaminants. It also enables flammable products to be stored and used safely, and protects against combustible dust explosions. It can also be used to remove in-process contaminants by pickling or bubbling.

The increasingly widespread use of nitrogen in the chemical industry has prompted industrial gas companies to constantly improve their production and supply methods, in order to make them more efficient, cost-effective and convenient for their customers. As a result, there are now a variety of techniques and supply methods available to meet a wide range of requirements, whether in terms of purity, type of use, portability, footprint or local cost of electricity. Choosing between all the solutions on offer can therefore be difficult. Nitrogen generators, such as PSA (pressure swing adsorption) or AMP (pressure swing adsorption) membrane units, are a cost-effective option for a wide spectrum of flows and purities.