Natural gas hydrate is a vast energy resource with global distribution in permafrost regions and in the oceans; its … extraction from hydrate-bearing sediments is critical for the utilization of hydrate accumulations. In this work, methane hydrate … the methane gas production process can be divided into three main stages: free gas liberation, hydrate dissociation …

Three groups of hydrate-bearing sediment samples with/without underlying gas were prepared using a three …-dimensional middle-size reactor to investigate the favorable conditions for methane recovery from hydrate reservoir with gaseous CO2. The … experimental results indicated that hydrate reservoir with underlying free gas, high saturation of free gas and low saturation of …

Effects of 0.29mol% tetra-n-butyl ammonium bromide (TBAB) solution in conjunction with cyclopentane (CP) on the hydrate … induction time of the hydrate formation at the different temperature–pressure conditions. The results show that the volume of …–pressure condition. In addition, the CO2 concentration in the decomposed gas from the hydrate slurry phase reaches approximately 93mol …

The hydrate-based CO2 (carbon dioxide) separation and capture from CO2/H2 (hydrogen) gas mixtures with the different CO … of 274.15 K and under driving force of 3.0 MPa, the hydrate formation induction time increases while the CO2 recovery (or …

The hydrate-based carbon dioxide (CO2) capture from the integrated gasification combined cycle (IGCC) synthesis gas … plate on the bottom of the equipment. By the visual equipment, the hydrate formation and the hydrate shape are visually … captured. With the move of the gas bubble from the bottom to the top of the reactor, gas hydrate forms firstly from the gas …

-derived carbon in shallow sediments overlying the hydrate bearing strata. When integrated with stable carbon isotope ratios of DIC … overlying hydrate bearing strata like those in Alaminos Canyon is critical to quantifying methane flux and estimating methane … hydrate distributions in gas hydrate bearing marine sediments. …

The porous microstructure of hydrates governs the mechanical strength of the hydrate-bearing sediment. To investigate … the growth law and microstructure of hydrates in porous media, the growth process of tetrahydrofuran (THF) hydrate under … THF hydrate grows as different models under different concentration of THF solution (19%, 11.4% and 5.7% by weight) at 1 …