低浓度煤层气水合物法提纯的研究进展  

Research progress on purification of low concentration coalbed methane by gas hydrate method

作　　者：郭东东 孙嘉鑫 朱恒银 姚津津 刘志超[2] 宁伏龙[2] 王韧 GUO Dongdong;SUN Jiaxin;ZHU Hengyin;YAO Jinjin;LIU Zhichao;NING Fuong;WANG Ren(School of Earth and Environment,Anhui University of Science&Technology,Huainan 232001,China;Engineering Research Center of Rock-Soil Drilling&Excavation and Protection,Ministry of Education,China University of Geosciences(Wuhan),Wuhan 430074,China;CNPC Engineering Technology Research and Development Co.,Ltd.,Beijing 102206,China)

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001 [2]中国地质大学(武汉)岩土钻掘与防护教育部工程研究中心,湖北武汉430074 [3]中国石油集团工程技术研究院有限公司,北京102206

出　　处：《安全与环境工程》2025年第2期186-195,共10页Safety and Environmental Engineering

基　　金：国家自然科学基金青年科学基金项目(42402319);安徽省自然科学基金青年项目(2308085QE151);安徽高校自然科学研究重点项目(2023AH051222);岩土钻掘与防护教育部工程研究中心开放课题(202407)。

摘　　要：低浓度煤层气(LCCBM)的高效开发利用对于缓解我国能源紧缺和实现国家“双碳”目标具有重要意义。LCCBM水合物法提纯技术由于原料简单环保、储气率高和反应溶液循环利用等优点而受到广泛关注,但该技术的工业化应用仍面临水合物生成条件较苛刻、CH4分离效率较低等挑战。因此,研究者对LCCBM水合物及其技术进行了大量研究工作。首先概述了LCCBM水合物法提纯原理;然后分别综述了热力学促进剂、动力学促进剂、促进剂复配体系及其他促进措施等对LCCBM水合物法提纯技术的改善作用,指出了当前研究存在的问题;最后提出了促进剂复配体系下多方法结合(水合耦合)、多级分离是LCCBM水合物法提纯技术迈向工业化的基础。The development and utilization of low concentration coalbed methane(LCCBM)resources is of great significance for alleviating China’s energy shortage and achieving the national target of emission peak and carbon neutrality.Purification of LCCBM by the hydrate method has attracted wide attention due to its advantages of the use of inexpensive and environmentally friendly materials,large gas storage capacity and recycling of the aqueous solution.However,the industrial application of this technology still needs to solve the key problems such as high hydrate formation pressure and low CH4 separation efficiency.To solve them,a lot of research work on LCCBM hydrate has been carried out.In this paper,the mechanism of the hydrate-based LCCBM purification method is reviewed firstly.Moreover,the research progress of the hydrate-based LCCBM purification technology is expounded from four aspects:thermodynamic promoters,kinetic promoters,compound promoter system and other promotion measures,and the existing problems about above research are pointed out.Finally,the possible research directions for the industrialization of hydrate-based LCCBM purification are proposed:the combination of high-quality compound promoters,the multistage separation method,and the coupling technology of hydrate method and other LCCBM purification methods.

关 键 词：气体水合物 低浓度煤层气(LCCBM) 促进剂 相平衡条件 形成动力学 

分 类 号：X937[环境科学与工程—安全科学]