气体水合物添加剂研究进展

Research progress of gas hydrate additives

水合物添加剂是促进水合物技术大规模工业化应用的潜在选择,也是油气混输管道流动安全的保障介质,因而受到国内外研究者的广泛关注。为此,从水合物添加剂的类型、影响机理和性能评价方法出发,对最新研究进展进行了详细梳理。分析发现,低剂量绿色环保型材料是水合物添加剂的潜在发展方向;单一试剂作用机理基本明确,包括吸附和扰乱抑制机理,降低表面张力、形成临界胶束和毛细管效应促进机理,而针对不同类型添加剂的耦合作用机理尚需进一步研究。未来,应结合多种评价方法,从多角度验证并揭示水合物添加剂的作用效果和机理。

Hydrate additive is not only a potential choice to promote large-scale industrial application of hydrate technology,but also a medium to guarantee the flow safety of oil-gas mixed transportation pipeline,so it has attracted extensive attention from researchers at home and abroad.Therefore,the latest research progress of hydrate additives was reviewed in detail from the types,influencing mechanisms and performance evaluation methods of hydrate additives.It is found that low dosage green material is the potential development direction of hydrate additive.The mechanism of single reagent is basically clear,including adsorption and disturbance for inhibition mechanism,reduction of surface tension,formation of critical micelle and capillary effect for promotion mechanism,but the coupling mechanism of different additives needs to be further studied.In the future,multiple evaluation methods should be combined to verify and reveal the effect and mechanism of hydrate additives from multiple perspectives.