The measure of stability of sulfolane (SFL) in aqueous alkanolamine solution was investigated. For this purpose, degradation of SFL was experimentally studied under the stripping operational condition ( T = 130 °C). The experiments were divided into two general categories: (1) aqueous solution of SFL with and without presence of oxygen to receive a sense of thermal and oxidative SFL degradation; (2) aqueous solution of MDEA/PZ/SFL loaded by hydrogen sulfide and carbon dioxide (both gas-loadings were set to be 0.25 to roughly make a real condition). The results of the experiments showed that SFL resists thermal degradation, but in the presence of oxygen and temperatures of 130 °C which is in accordance with the desorption operational conditions, it would be prone to degradation to anions such as sulfite, sulfate and thiosulfate.

中文翻译：

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汽提操作条件下烷醇胺水溶液中环丁砜降解的研究

研究了环丁砜 (SFL) 在链烷醇胺水溶液中的稳定性测量。为此，在汽提操作条件 (T = 130 °C) 下对 SFL 的降解进行了实验研究。实验分为两大类： (1) SFL 的水溶液在有氧和无氧的情况下接受热和氧化 SFL 降解的感觉；(2) MDEA/PZ/SFL 的水溶液负载硫化氢和二氧化碳（两种气体负载量均设置为0.25，以粗略地制作实际情况）。实验结果表明，SFL抗热降解，但在氧气存在和符合解吸操作条件的130°C温度下，它容易降解为亚硫酸盐、硫酸盐和硫代硫酸盐等阴离子。