胺水溶液喷雾吸收和液滴分布数据用于二氧化碳捕获应用

2018/12/06   下载量： 1 次

方案摘要

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应用领域 石油/化工
检测样本 工业气体
检测项目
参考标准 暂无

胺水溶液喷雾吸收和液滴分布数据对于发电厂尾气排放中吸附二氧化碳的研究是非常重要的。吸附过程的效率，效果，和喷雾液滴的表面积，以及喷雾柱的流量关系密切。采用相位多普勒粒子干涉仪，可以实时检测喷雾柱中某个位置的液滴的粒径和速度。可以用于研究表征胺水溶液吸附二氧化碳过程。

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Spray columns can potentially be utilized for absorbing CO2 from large point sources such as flue gas exhausted by power plants.
Low gas phase pressure drop, and the lack of internals which are susceptible to corrosion, make spray columns well suited for
aqueous amine absorption. Design practices for spray columns are highly empirical and application specific. There is a paucity of
data on absorption of CO2 in aqueous amine sprays. Mass transfer data for CO2-amine systems is required for robust design of
spray columns. Further, the absorption efficiency of sprays is greatly influenced by the surface area of drops, which in turn
depends on the droplet size distribution. However, experimental data for droplet size distributions inside aqueous amine sprays is
non-existent. Measurement of droplet size distributions is critical in providing a fundamental insight into spray absorption. This
work presents molar flux data coupled with droplet size distribution data for CO2 absorption into Monoethanolamine (MEA)
spray. Both the molar flux measurements and the droplet size measurements are made inside a 0.2 m glass column. The droplet
size distributions are measured using a Phase Doppler Interferometer (PDI). Further, a novel method is utilized to quantify the
available surface area from the droplet size distribution measurements. The effect of MEA concentration on molar flux, droplet
size, and surface area is presented.

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北京欧兰科技发展有限公司
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