天然气水合物形成促进技术实验研究  

EXPERIMENTAL STUDY OF PROMOTING NATURAL GAS HYDRATE FORMATION

作　　者：孙志高 郭开华 樊栓狮 

机构地区：[1]扬州大学 [2]广州能源研究所

出　　处：《天然气工业》2004年第12期41-43,共3页Natural Gas Industry

基　　金：国家自然科学基金项目 (5 0 176 0 5 1);江苏省教育厅指导计划项目 (G0 10 9199)研究成果

摘　　要：文章利用新建立的实验台研究了十二烷基硫酸钠 (SDS)和烷基多糖苷 (APG)对天然气水合物形成过程的影响。表面活性剂可促进天然气在水中的溶解 ,从而提高水合物的形成速度。根据表面活性剂对天然气水合物形成耗气量的影响 ,实验表明十二烷基硫酸钠和烷基多糖苷在水合物形成体系中的临界胶束浓度分别为 30 0ppm和 5 0 0 ppm。在临界胶束浓度表面活性剂溶液体系中 ,实验结果表明微量的表面活性剂减少了水合物形成诱导时间 ,提高了水合物形成速度和水合物形成的耗气量 ,并使水合物在静止系统中快速生长。混合表面活性剂可进一步提高水合物的形成速度 。The influence of sodium dodecyl sulfate (SDS) and alkyl polysaccharide glycoside (APG) on natural gas hydrate formation was studied by applying a new experimental rig. Surfactant may improve gas' being dissolved into the water, thus raising hydrate forming velocity. In consideration of the effect of surfactant on the gas consumption in gas hydrate formation, and through experiments, it was shown that the critical micellar concentrations of SDS and APG are 300 ppm and 500 ppm respectively; in the surfactant solution system with critical micellar concentration, a minimum surfactant could reduce the induction time of hydrate formation, thus raising the hydrate forming velocity, increasing the gas consumption in hydrate formation and causing the hydrate's growing quickly in a quiescent system; and the mixed surfactants might further enhance the hydrate formation velocity but was unfavourable to increasing the gas consumption in hydrate formation.

关 键 词：天然气水合物 表面活性剂 临界胶束浓度 十二烷基硫酸钠 SDS 促进 形成过程 速度 实验台 实验结果 

分 类 号：P744[天文地球—海洋科学]