摘要
为了保证油气输送管道正常运行,必须采取相应措施防止水合物大量生成而造成管道及设备的堵塞。为了规避热力学抑制剂用量大、成本高,并且污染环境的缺点,低剂量抑制剂的研究与开发受到研究人员的高度重视。在体系温度4℃,初始压力8.5 MPa的条件下实验研究了质量浓度均为0.1%的1-乙基-3甲基咪唑氯盐(EMIM-Cl)、1-丁基-3甲基咪唑氯盐(BMIM-Cl)、1-己基-3甲基咪唑氯盐(HMIM-Cl)溶液对甲烷水合物生成的抑制作用。结果表明,上述3种离子液体都能够延长甲烷水合物的生成时间,并降低甲烷气体消耗量及水合物的生成体积,即上述3种离子液体都可抑制甲烷水合物的生成。此外,上述3种离子液体抑制甲烷水合物生成效果强弱顺序为:EMIM-Cl>HMIM-Cl>BMIM-Cl。
It is necessary to inhibit the formation of natural gas hydrate for the safe of oil-gas transportation pipe- lines. Nowadays, The low dosage hydrate inhibitors （LDHIs） which are low price and non-toxic has been focused. In order to test the impaction of prevent formation of methane hydrates by EMIM-C1, BMIM-C1 and HMIM-C1, the impaction of prevent formation of methane hydrates by 0. 1% EMIM-C1, BMIM-C1 and HMIM-C1 were researched in stationary systems through experiments at 4 ~C and 8.5 MPa. The results of experiments show that the generated time are increased and methane gas consumption, hydrate generated volume are decreased by EMIM-C1, BMIM-C1 and HMIM-C1. What＇ s more, the order of these kinds of inhibition effect is EMIM-C1 〉 HMIM-C1 〉 BMIM-C1.
出处
《科学技术与工程》
北大核心
2014年第21期230-233,238,共5页
Science Technology and Engineering
基金
国家自然科学基金(51176015)资助
关键词
天然气水合物
抑制
离子液体
生成时间
气体消耗量
生成体积
natural gas hydrate inhibition ionic liquid generated time generated volume gas consumption
