Chemically Influenced Self-Preservation Kinetics of CH4 Hydrates below the Sub-Zero Temperature

The self-preservation property of CH4 hydrates is beneficial for the transportation and storage natural gas in form hydrates. Few studies have been conducted on effects chemicals (kinetic thermodynamic promoters) properties hydrates, most available literature limited to pure water. novelty this work that we studied compared kinetics hydrate formation presence amino acids (hydrophobic hydrophilic) when temperature dropped below 0 °C. Furthermore, also investigated acids. main results are: (1) At T < ℃, total uptake improved histidine (hydrophilic) at concentrations greater than 3000 ppm, but no significant change was observed methionine (hydrophobic), confirming improvement (for hydrophilic acids) due increased subcooling; (2) = −2 °C, metastability hydrate. Increasing concentration from 20,000 ppm enhanced hydrate; (3) Metastability stronger histidine; (4) This study provides experimental evidence use as stabilizers faster kinetics, foam during dissociation, self-preservation.