Jin, Yusuke published the artcilePyrazine Analogues on Clathrate Hydrates in Methane-Water Systems, Formula: C7H10N2, the main research area is clathrate hydrate methane water methylpyrazine system Raman spectroscopy.
This paper reports the change in equilibrium pressure-temperature (pT) boundaries in a methane (CH4)-water system by adding three pyrazine analogs: 2-methylpyrazine, 2,3-dimethylpyrazine, and 2,3,5-trimethylpyrazine. The 2-methylpyrazine, 2,3-dimethylpyrazine, and 2,3,5-trimethylpyrazine showed no effect on the clathrate hydrate structure that formed in the CH4-water system upon anal. via Raman spectroscopy. Raman spectra revealed that clathrate crystals that formed in the CH4-pyrazine analog-water system were of a structure-I CH4 hydrate. Phase equilibrium pT boundaries in the three CH4-pyrazine analog-water systems shifted to a higher p and lower T condition than that for the CH4-water system with no additive. The higher p/lower T shift confirmed that 2-methylpyrazine, 2,3-dimethylpyrazine, and 2,3,5-trimethylpyrazine act as thermodn. inhibitors for hydrate formation. The order of ΔT, a lower T shift from the CH4-water system, was as follows: 2-methylpyrazine-water > 2,3-dimethylpyrazine > 2,3,5-trimethylpyrazine. This order is in agreement with the number of -CH3 groups in the mols.
Journal of Chemical & Engineering Data published new progress about Phase equilibrium. 14667-55-1 belongs to class pyrazines, name is 2,3,5-Trimethylpyrazine, and the molecular formula is C7H10N2, Formula: C7H10N2.