CAJ | 학술논문

由于生成条件比较温和、含气率较高、储存稳定、耗能低、再分解简单可控、水合物晶体仅包含水和甲烷的优点，水合物法已成为一种有吸引力的分离含氧煤层气的新方法。实验研究了THF+TBAB+SDS体系中煤层气水合物生成的热力学参数及诱导时间的变化规律，获得了相应的相平衡数据。结果表明：THF+TBAB+SDS对煤层气水合物生成的热力学促进作用明显好于单一组分添加剂；并且THF、TBAB混合后，对煤层气水合物生成热力学起主要促进作用的为THF；三种添加剂混合后，记忆效应对煤层气水合物生成诱导时间影响不明显。
유우생성조건비교온화、함기솔교고、저존은정、모능저、재분해간단가공、수합물정체부포함수화갑완적우점，수합물법이성위일충유흡인력적분리함양매층기적신방법。실험연구료THF+TBAB+SDS체계중매층기수합물생성적열역학삼수급유도시간적변화규률，획득료상응적상평형수거。결과표명：THF+TBAB+SDS대매층기수합물생성적열역학촉진작용명현호우단일조분첨가제；병차THF、TBAB혼합후，대매층기수합물생성열역학기주요촉진작용적위THF；삼충첨가제혼합후，기억효응대매층기수합물생성유도시간영향불명현。
The hydrate method had became a new attractive route for the separation of methane from oxygen-containing coal mine methane (CMM) due to its relatively mild generating condition, high gas rate, storage stability, low power consumption, simple and controllable future decomposition and only methane and water contained in the hydrate. The changing rules of the thermodynamic parameters and induction time for hydrate formation of CMM in THF+TBAB+SDS system were investigated experimentally, and the corresponding phase equilibrium data were obtained. Results showed that the thermodynamic promotion effect of THF+TBAB+SDS on CMM hydrate formation was significantly better than that of corresponding single-component additive;for THF+TBAB promoter, THF played a major role in thermodynamic promotion of CMM hydrate formation;and for THF+TBAB+SDS promoter, the memory effect on CMM hydrate formation induction time was not obvious.