System and method for cryogenic vaporization using circulating cooling loop

A method for cryogenic vaporization comprising the steps of:

• receiving a sub-cooled liquid cryogen from an air separation plant;
• heating the sub-cooled liquid cryogen from the air separation plant via direct heat exchange in a thermal storage unit to produce a liquid cryogen;
• receiving the liquid cryogen at a first heat exchanger;
• vaporizing the liquid cryogen via indirect heat exchange in the first heat exchanger against a superheated cryogenic vapor to output a cryogenic vapor at a first temperature;
• receiving the cryogenic vapor at the first temperature at a second heat exchanger;
• heating the cryogenic vapor at the first temperature via indirect heat exchange in the second heat exchanger to yield the superheated cryogenic vapor at a second temperature;
• recirculating the superheated cryogenic vapor at the second temperature to the first heat exchanger;
• cooling the superheated cryogenic vapor at the second temperature in the first heat exchanger to yield a cryogenic vapor at a third temperature that is colder than the superheated cryogenic vapor at the second temperature;
• receiving the cryogenic vapor at the third temperature at a third heat exchanger;
• heating the cryogenic vapor at the third temperature via indirect heat exchange in the third heat exchanger to yield a cryogenic vapor at a fourth temperature;
• and
• outputting, from the third heat exchanger, the cryogenic vapor at the fourth temperature to an end-user and wherein the cryogenic vapor at the fourth temperature originated from the air separation plant;
• wherein the second heat exchanger and the third heat exchanger are substantially free of ice formation.