Abstract Carbon dioxide hydrate was formed in aqueous suspensions of cellulose nanocrystals (CNC) and the induction time and rate of hydrate crystal growth was compared to data obtained when CO2 hydrate was formed in pure water (blank). CNC concentrations of 0.13, 0.5 and 0.75 wt% were employed to determine whether CNC could reduce the induction time and enhance hydrate growth rate as it has been reported for carbon nanotubes and other nanoparticle suspensions. Hydrate formation experiments were carried out in two different crystallizers. The first set-up was in semi-batch operation mode while the second set-up was in batch operation mode. The results show that the CNC did not have a statistically significant impact on CO2 hydrate formation. This study also raises questions about the validity of conclusions and claims made in the literature about the effect of carbon nanotubes and other nanoparticles on gas hydrate formation. Those claims were based on very small sample sizes and without statistical data analysis.

中文翻译：

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纤维素纳米晶体存在下 CO2 水合物形成的热力学和动力学以及数据的统计处理

摘要 在纤维素纳米晶体 (CNC) 的水悬浮液中形成了二氧化碳水合物，并将水合物晶体生长的诱导时间和速率与在纯水（空白）中形成 CO2 水合物时获得的数据进行比较。CNC 浓度为 0.13、0.5 和 0.75 wt%，用于确定 CNC 是否可以减少诱导时间并提高水合物的生长速率，如已报道的碳纳米管和其他纳米颗粒悬浮液。水合物形成实验在两个不同的结晶器中进行。第一次设置处于半批量操作模式，而第二次设置处于批量操作模式。结果表明，CNC 对 CO2 水合物的形成没有统计上的显着影响。这项研究还对文献中关于碳纳米管和其他纳米粒子对天然气水合物形成的影响的结论和主张的有效性提出了质疑。这些说法是基于非常小的样本量并且没有进行统计数据分析。