This study deals with the carbon dioxide (CO₂) hydrate formation in aqueous solutions, containing 0.5 wt% amino acids (L-valine, L-phenylalanine, L-cysteine, L-methionine and L-threonine) under isochoric conditions. Systematic experiments were conducted in both stirred (300 rpm) and non-stirred configurations. The hydrate formation requires higher sub-cooling than the pure CO₂ system. The gas uptake in the hydrates, formed under stirred conditions, in l-val, l-cys and l-met systems is ∼20% higher than the pure system, while in other two (l-phe & l-thr) it is comparable to the pure system. Further, there is no appreciable gas uptake in pure, l-phe and l-thr systems under non-stirred conditions. On the other hand, the gas uptake is higher and faster, similar to stirred conditions, in other three systems, i.e., l-val, l-cys and l-met. Thus, the aqueous solutions consisting of these three amino acids are useful in the CO₂ gas capture and storage applications.

这项研究处理的是在等压条件下在水溶液中形成的二氧化碳（CO ₂）水合物，其中含有0.5 wt％的氨基酸（L-缬氨酸，L-苯丙氨酸，L-半胱氨酸，L-蛋氨酸和L-苏氨酸）。在搅拌（300 rpm）和非搅拌配置下进行系统性实验。与纯CO ₂相比，水合物的形成需要更高的过冷度系统。在l-val，l-cys和l-met系统中，在搅拌条件下形成的水合物中的气体吸收量比纯系统高约20％，而在另两个（l-phe和l-thr）系统中，可与纯系统媲美。此外，在非搅拌条件下，在纯，l-phe和l-thr系统中没有明显的气体吸收。另一方面，类似于搅拌条件，在其他三个系统中，即l-val，l-cys和l-met，气体吸收更高且更快。因此，由这三种氨基酸组成的水溶液可用于CO ₂气体捕获和储存应用。