Nitrogen users with greater consumption rates or those who need high purity nitrogen may find that the most economical technology is a cryogenic “LIN assist” plant installed on their site. LIN-assist plants use a modified cryogenic production cycle that cost effectively produces most of the gaseous nitrogen that is required. A relatively small amount of liquid nitrogen (typically 5 to 10% of the total volume of delivered nitrogen) is used on a continuous basis to provide process refrigeration for the distillation process that makes the on-site-produced nitrogen. This vaporized liquid nitrogen mixes with the onsite-produced gas and is routed to users.