摘要
利用高压水合物形成实验装置测量了表面活性剂对水合物形成过程的影响.实验结果表明:微量的表面活性剂可使水合物在静止的系统中快速形成,提高了气体水合物的储气能力,并改变了水合物的形成机理.根据活性剂含量与水合物储气量的关系,确认十二烷基硫酸钠(SDS)和烷基多糖苷(APG)在水合物形成体系中的临界胶束质量分数分别为0 03%和0 05%.阴离子表面活性剂十二烷基硫酸钠对水合物储气的促进作用比非离子表面活性剂烷基多糖苷强.
The effect of surfactant on hydrate formation rate and storage capacity is measured with a highpressure experimental rig for hydrate formation. Micellar surfactant solutions are found to increase methane hydrate formation rate in a quiescent system and to improve methane storage capacity in hydrates, and finally to alter formation mechanism for natural gas hydrates. The critical micellar mass concentrations are determined as 003% for sodium dodecyl sulfate (SDS) water solution and 005% for alkyl polysaccharide glycoside (APG). Compared with nonionic surfactant (alkyl polysaccharide glycoside), the effect of anionic surfactant (sodium dodecyl sulfate) on natural gas storage in hydrates is stronger.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2003年第7期723-725,730,共4页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金资助项目 (50 1 760 51 )
江苏省教育厅指导计划项目 (G0 1 0 91 99).
