Mid-infrared fiber-optic evanescent field spectroscopy for in situ monitoring of tetrahydrofuran hydrate formation and dissociation

Tetrahydrofuran is a relevant auxiliary molecule when storing carbon dioxide or hydrocarbons as gas hydrates. The present study demonstrates the application of in situ mid-infrared fiber-optic evanescent field absorption spectroscopy for studying the formation and dissociation of THF hydrates. Thereby, the utility of this analytical technique for providing unique molecular-level insight even under harsh environmental conditions is evidenced. Mid-infrared fiber-optic evanescent field spectroscopy (MIR-FEFS) has been applied as an in situ monitoring technique for THF containing clathrate hydrates.