摘要
水合物法回收混空煤层气中的甲烷具有清洁高效和操作安全的优势。为了探究四丁基溴化铵(TBAB)和辛基-β-D-吡喃葡萄糖苷(OGP)两种促进剂的协同作用,完成了TBAB+OGP复配溶液中甲烷水的合物相平衡实验。结果表明,TBAB显著降低了甲烷水合物的生成压力,但是OGP的引入减弱了TBAB的热力学促进作用。其削弱作用随着OGP和TBAB浓度的增加而增加,随着温度的升高而降低。该研究为水合物法回收煤层气提供基础实验数据并指导后续的方案设计。
The hydrate-based method for methane recovery from coalbed gas has the advantages of efficient and safe to operate.In order to explore the synergistic effect of two promoters,tetrabutylammonium bromide(TBAB)and octyl-β-D-glucopyranoside(OGP),phase equilibrium experiments of methane hydrate in TBAB+OGP mixed solution were carried out.The results showed that TBAB significantly reduced the formation pressure of methane hydrate,but the introduction of OGP weakened the thermodynamic promotion effect of TBAB.This weakening effect increased with increasing concentrations of OGP and TBAB,and decreased with increasing temperature.This study provides fundamental experimental data for the hydrate-based method for coalbed gas recovery and guides the design of subsequent schemes.
作者
荣少杰
高靖博
刘曾奇
董波
徐振
王逸伟
Rong Shaojie;Gao Jingbo;Liu Zengqi;Dong Bo;Xu Zhen;Wang Yiwei(CNPC(Xinjiang)Petroleum Engineering Co.,Ltd.,Xinjiang,834099;State Key Laboratory of Heavy Oil Processing,China University of Petroleum-Beijing,Beijing,102249;State Key Laboratory of Heavy Oil Processing,China University of Petroleum-Beijing at Karamay,Xinjiang,834000)
出处
《当代化工研究》
CAS
2023年第14期1-3,共3页
Modern Chemical Research
基金
2022年,中国石油大学(北京)克拉玛依校区,新疆维吾尔自治区高校基本科研业务费“水合物与壁面间摩擦/粘附力影响规律研究”(项目编号:XJEDU2022P152)
2023年,新疆敦华绿碳技术股份有限公司,克拉玛依市重点研发计划项目“盐水层溶解埋存二氧化碳技术的研究”(项目编号:2023ZDYF0006)
2023年,中国石油大学(北京)科研基金“四丁基溴化铵与丙烷相互作用对火炬气生成水合物形态的影响机理”(项目编号:2462023YJRC002)。
关键词
水合物
促进剂
相平衡
甲烷
hydrate
accelerator
phase equilibrium
methane
