Solubility of oxygen in various alkanolamine–water solutions at low partial pressure
Solubility of oxygen in various alkanolamine–water solutions at low partial pressure
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DOI：
10.1002/apj.1942
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发表时间：
2016
影响因子：
1.8
通讯作者：
Y. Xiang;Weichao Yan;J. Wang
中科院分区：
文献类型：
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作者：
Y. Xiang;Weichao Yan;J. Wang
氧在各种烷醇胺-水溶液中的溶解度是解决烷醇胺降解动力学和钢在烷醇胺溶液中的腐蚀等问题的关键问题，也引起了广泛关注，特别是在碳捕集与封存研究领域。然而，可用的数据非常有限，只有鲁尼和丹尼尔斯的一篇公开发表的关于这个问题的论文[1]也被广泛引用。本文采用梅特勒-托莱多120-mm溶解氧探针，测定了50wt%甲基二乙醇胺（MDEA）、30wt% MDEA、30wt%二乙醇胺（DEA）、20wt%单乙醇胺、50wt%二乙醇胺等不同醇胺-水混合物中的氧溶解度。氧在去离子水中的溶解度也包含在测量中，以便与现有的去离子水拟合方程进行比较。在论文的最后，提出了一个广泛使用的拟合方程：
The solubility of oxygen in various alkanolamine–water solutions is a key issue in dealing with the problems like alkanolamine degradation kinetics and corrosion of steel in alkanolamine solutions and it also has attracted extensive concerns, especially in the research community of carbon capture and storage. However, the available data are very limited, with only one open published paper by Rooney and Daniels related with this issue,[1] which has also been widely cited. In that paper, the oxygen solubility in various alkanolamine–water mixtures, including 50 wt% methyldiethanolamine (MDEA), 30wt% MDEA, 30wt% diethanolamine (DEA), 20wt% monoethanolamine, and 50wt% diglycolamine, was measured by using Mettler Toledo 120-mm dissolved oxygen probe. The solubility of oxygen in deionized water was also contained in the measurement in order to compare with the existing fit equations for deionized water. At the end of that paper, a widely used fit equation was proposed as follows: