text: NeSSI is used for process analytical measurements in the petrochemical, chemical and oil refining industries. These measurements may be for quality control of raw material or final product, environmental compliance, safety, energy reduction or process control purposes. Vapour applications may include hydrocarbon feed stocks and intermediates (ethylene, ethane, propylene, etc.), natural gas streams, liquefied petroleum gas (LPG) streams, hydrogen and air gas streams.
  Liquid systems suitable for use with the Generation I mechanical portion of NeSSI are hydrocarbons such as diesel fuel as well as aqueous streams. Highly viscous fluids and solids are not suitable for use with NeSSI. Very dirty, high particulate streams need to be filtered. Some liquid service applications may be limited by pressure drops associated with components hooked up in a serial configuration. NeSSI systems have found applications in areas other than the process analytical environments including micro reactor, mini plant and laboratory environments where small size, unskilled assembly and flexible configuration is important.