Raman spectroscopic studies on carbon dioxide separation from fuel gas via clathrate hydrate in the presence of tetrahydrofuran

Experimental studies on hydrogen hydrate with tetrahydrofuran by differential scanning calorimeter and in-situ Raman

“…In our previous work, the similar water aggregation was ever testified using in-situ Raman in the gas/THF solution interface and in the THF solution after hydrate dissociation. [15] For the hydrate dissociation, the area of endothermic peak obtained in the memory solution is also smaller than that in the fresh solution, showing the amount of the heat releasing from THF-hydrogen binary hydrate formation in the memory solution less than that in the fresh solution. Due to the same thermal state after hydrate dissociating completely, this phenomenon involves into the decrease of the water molecules which can directly form the binary hydrate from the free situation instead of the residual framework structure.…”

“…[10] This type of hydrogen storage in forms of clathrate hydrate belongs to one of hydrate-based technologies. Expect for storing hydrogen, hydrate-based technologies can also be widely adopted to purify hydrogen from fuel gas together with pre-combustion capture of carbon dioxide, [11][12][13][14][15] and recover hydrogen from hydrogenation plant off-gas etc. [16] For the formation of the hydrate containing hydrogen, John et al [17] formed hydrogen hydrate using a high-pressure separator with SRC-II process (Solvent Refined Coal II Process) and found that hydrogen hydrate failed to be stable according to its Kihara parameters.…”

High‐efficiency CO2 capture and separation based on hydrate technology: A review

“…22 Research on chemical promoter selection, concentration optimization, and separation performance to alter formation conditions has been conducted and may be found in the literature. [23][24][25][26][27][28][29][30] Thermodynamic and kinetic models were also developed. However, chemical promoters also have some disadvantages.…”

Aplicação Da Robótica Na Monitoração Ambiental

“…e 2013 (a); LEE et al, GIAVARINI et al, 2006 Espectro de Raman FT -Raman Identificar os compostos químicos presentes na amostra. CAI et al, 2018;CAI et al, 2017;CHEN et al, 2015;ZHOU et al, 2015KUMAR et al, 2019 (b); LV e LI, ZHOU et al, 2016; BROOKS et al, 1983HACHIKUBO et al, 2008 Espectroscopia por ressonância magnética nuclear NMR Determinar a estrutura de moléculas químicas.…”