化工进展2025，Vol.44Issue(4)：1998-2007,10.DOI:10.16085/j.issn.1000-6613.2024-0500
鼠李糖脂强化CO2水合物生成
Rhamnolipid-enhanced CO2 hydrate production
摘要
Abstract
Gas hydrate technology has broad application prospects in the seawater desalination,hydrate cold storage,carbon dioxide storage,etc.The hydrate formation speed is one of the key issues restricting the application of hydrate technology.The CO2 hydrate formation with rhamnolipid enhancement were studied using a self-built CO2 hydrate generation visualization experimental device,and the effects of rhamnolipids on gas consumption,induction time and morphological images during the formation of CO2 hydrate were analyzed.The results showed that in the rhamnolipid solution,the gas consumption was increased by 4.47mmol/mol,but the induction time was shortened by 260min,comparing with pure water.It is found that the induction time of hydrate formation in 0.2％rhamnolipid solution was the shortest,and then the continuous increase of concentration inhibited the growth of hydrate from the study of the CO2 hydrate formation characteristics in different concentrations of rhamnolipid solution.In addition,there was a linear relationship between the induction time and the initial temperature change in the system because the CO2 hydrate gas consumption decreased with the increase of initial temperature which led to decrease in the degree of supercooling.The increase of initial pressure resulted in shortening induction time and reducing the amount of hydrate formation.There were great differences in the morphological images of CO2 hydrate formation in rhamnolipid solution under different generation conditions.关键词
CO2水合物/鼠李糖脂/传质/传热/形态学Key words
carbon dioxide hydrate/rhamnolipids/mass transfer/heat transfer/morphology分类
化学化工引用本文复制引用
王佳琪,刘佳兴,魏皓琦,周昕霖,程传晓,葛坤..鼠李糖脂强化CO2水合物生成[J].化工进展,2025,44(4):1998-2007,10.基金项目
国家自然科学基金(52306192). （52306192）
