SYSTEM AND METHODS FOR THE PRODUCTION OF LIQUEFIED NITROGEN GAS USING LIQUEFIED NATURAL GAS

摘要

Described herein are systems and processes to produce liquefied nitrogen (LIN) using liquefied natural gas (LNG) as the refrigerant. The LIN may be produced by indirect heat exchange of at least one nitrogen gas stream with at least two LNG streams within at least one heat exchanger where the LNG streams are at different pressures.