The only commercially viable technology available today for CO₂ capture on an industrial scale is the amine absorption process. However, the capture cost is still significantly high and needs to be reduced to encourage more industries and businesses to implement the technology. One aspect of the process with a major scope of improvement is the absorber column. This research investigated the use of a spray column for gas–liquid contacting operation as compared to the currently used packed bed absorber, which is associated with high capital and maintenance cost. An experimental investigation was carried out using 30 wt % monoethanol amine as the solvent to obtain a CO₂ concentration and temperature profile along the spray column length and measure the overall absorption efficiency. The multinozzle arrangement used in this study showed the best performance as compared to the single-nozzle spray column with an increase in absorption efficiency by up to 10% under similar operating conditions.

中文翻译：

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使用多喷嘴布置改善胺吸收过程中 CO2 捕获的喷雾柱性能


目前可用于工业规模 CO₂ 捕获的唯一商业上可行的技术是胺吸收工艺。然而，捕获成本仍然很高，需要降低以鼓励更多行业和企业实施该技术。该工艺中一个有重大改进的方面是吸收塔。本研究调查了与目前使用的填充床吸收器相比，使用喷雾塔进行气液接触操作，后者与高资本和维护成本相关。使用 30 wt % 的单乙醇胺作为溶剂进行实验研究，以获得沿喷雾柱长度的 CO₂ 浓度和温度曲线，并测量整体吸收效率。与单喷嘴喷雾塔相比，本研究中使用的多喷嘴布置表现出最佳性能，在相似操作条件下吸收效率提高了 10%。