Dry water is a powdery liquid composed of tiny water droplets surrounded by super-hydrophobic nanosilica. We used a high-pressure cell to determine the equilibrium temperature and pressure of CO₂ hydrate in the presence of dry water. The Bridging-Cluster model for the hydrophobic attraction force was used to evaluate the hydrophobic force effect on the excess properties of water in the liquid phase. We modified Ballard and Sloan's framework for the CO₂ clathrate hydrates in the hydrate phase by introducing the Bridging-Cluster model. The distance of hydrate cells from the hydrophobic surface (δ) was calculated by optimizing the measured hydrate formation conditions. An absolute average relative deviation for pressure was 1.99% and 1.22% for silica 5 and 10 wt% dry water systems, respectively. The present model explains the promotion effect of the dry water hydrate system and the calculated equilibrium formation conditions with high accuracy.

干水是由超疏水纳米二氧化硅包围的微小水滴组成的粉状液体。我们使用高压电池来确定在干水存在下CO _{2水合物的平衡温度和压力。}疏水吸引力的桥接簇模型用于评估疏水力对液相中水的过量特性的影响。我们修改了 Ballard 和 Sloan 的 CO _2框架通过引入桥簇模型，水合物相中的笼形水合物。通过优化测量的水合物形成条件来计算水合物细胞与疏水表面的距离 (δ)。对于二氧化硅 5 和 10 wt% 的干水系统，压力的绝对平均相对偏差分别为 1.99% 和 1.22%。本模型高精度地解释了干水水合物体系的促进作用和计算的平衡形成条件。