A microwave sensor for detecting impurity freeze out in liquefied natural gas production

Hydrogen liquefaction: a review of the fundamental physics, engineering practice and future opportunities

“…The efficacy of adsorbent materials and processes to remove these impurities to the requisite levels should also be investigated further to identify possible opportunities for optimising cost and performance. Finally, the adaptation of similar sensor technologies developed to provide real-time information on the freeze-out risk of impurities in LNG production 371 should be considered.…”