This paper presents an experimental study of methane hydrate decomposition with different concentrations of electrolytes Na+ and K+, with the aim of exploring the electrolyte's behaviour characteristics shown in its effect on the self-protection effect of methane hydrate during decomposition. The study used an experimental device for hydrate synthesis and decomposition. It focuses on the effect of electrolytes on the self-protection effect of methane hydrate during the self-protection effect during methane hydrate decomposition. (i) Na+ ions have an inhibitory effect on self-protection, whereas K+ ions do not have a significant effect. (ii) There is a negative correlation between the hydrate self-protection effect and the concentration of Na+ ions. However, an excessive Na+ concentration can inhibit the hydrate gas production rate. (iii) The synergistic system of Na+ and K+ ions has a better inhibitory effect on the hydrate's self-protection effect than a single Na+ ion solution. As the concentration of the synergistic system increased, the hydrate gas production rate was not inhibited. However, in contrast to a single Na+ ion solution, when the concentration of the synergistic system was too high, the methane hydrate gas production rate was not inhibited because of the coexistence of cations.

中文翻译：

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电解质对天然气水合物分解自保护的影响

本文介绍了不同浓度电解质 Na+ 和 K+ 下甲烷水合物分解的实验研究，旨在探索电解质在分解过程中对甲烷水合物自我保护作用的影响所表现出的行为特征。该研究使用了一种用于水合物合成和分解的实验装置。重点研究了在甲烷水合物分解过程中的自我保护作用中电解质对甲烷水合物自我保护作用的影响。(i) Na+离子对自我保护有抑制作用，而K+离子没有显着作用。(ii) 水合物自我保护作用与Na+离子浓度呈负相关。然而，过高的Na+浓度会抑制水合物气的产率。(iii) Na+和K+离子的协同体系对水合物的自我保护作用的抑制效果比单一的Na+离子溶液更好。随着协同体系浓度的增加，水合物气的产率没有受到抑制。然而，与单一的Na+离子溶液相比，当协同体系浓度过高时，由于阳离子的共存，甲烷水合物的产气率并未受到抑制。