安全、健康和环境2025，Vol.25Issue(7)：59-66,8.DOI:10.3969/j.issn.1672-7932.2025.07.009
温和型水合物促进剂体系的研发及评价
Research and Evaluation of Mild Hydrate Accelerator Systems
摘要
Abstract
The hydrate method for storing natural gas has attracted widespread attention from researchers due to its advantages such as high theoretical gas storage capacity and safe preparation.However,under normal temperature conditions,problems such as the difficulty in generating methane hydrates and the unsatisfactory gas storage density have limited the further development of this technology.Based on the thermodynamic coupling mechanism,a new type of mild hydrate accelerator suitable for normal temperature conditions was developed.The optimal ratio and the optimal reaction temperature were determined,and the stability and recovery effect of hydrates in the accelerator system were investigated.The experimental results showed that at 20℃and 5.3 MPa,hydrates cannot be formed under pure water conditions.By adding the developed accelerator system to change the original phase equilibrium conditions,hydrates can be formed in a short time.Moreover,when the mass fraction of sodium dodecyl sulfate was 0.3%,the mass fraction of tetrahydrofuran was 20%,and the mass fraction of tetrabutylammonium bromide was 10%,This accelerator system had the best performance.The sys-tem temperature had a significant impact on the accelerator.Its optimal working temperature was 20℃,and the gas storage capacity(the molar amount of gas that can be stored per mole of water)can reach 0.071 mol/mol.The decomposition rate of the hydrate in the accelerator system during atmospheric pressure storage was less than 5.0%,the methane recovery rate was greater than 98%,and basically no bubbles were produced during the re-covery process.关键词
油田伴生气/储气技术/甲烷水合物/温和型促进剂/热力学促进剂/动力学促进剂/结构稳定性/回收率Key words
associated gas in oil fields/gas storage technology/methane hydrate/mild accelerator/ther-modynamic accelerator/kinetic accelerator/structural stability/recovery rate分类
化学化工引用本文复制引用
任悦萌,童仕坤,闫柯乐..温和型水合物促进剂体系的研发及评价[J].安全、健康和环境,2025,25(7):59-66,8.基金项目
中国石化科技部项目(324031),吸附-水合耦合法高效回收非管道天然气技术研究. （324031）
