PZ+AMP 水溶液吸收二氧化碳之反應動力學 數據量測研究

Measurement of the Reaction Kinetics of CO2 with Aqueous PZ / AMP Solutions

孫偉宸(Wei-Chen Sun)

指導教授 ： 李夢輝

中原大學/工學院/化學工程研究所/碩士(2002年)

https://doi.org/10.6840/cycu200200195

摘要

本研究主要利用濕壁柱來量測並探討CO2與混合醇胺PZ / AMP水溶液的反應動力學，其濃度範圍為PZ (0.1-0.4 kmol·m-3) / AMP (1.0 kmol·m-3)及PZ (0.1-0.4 kmol·m-3) / AMP (1.5 kmol·m-3)，溫度是30、35及40°C。一些物理數據如：密度、黏度、亨利常數及擴散係數，我們也加以量測，而亨利常數及擴散係數我們以N2O來量測在利用類比方法來計算在CO2中的值。
對於CO2，本研究以pseudo-first-order的模式來描述反應動力行為，而對於PZ及AMP則以一級反應來描述。
實驗結果發現，PZ可以加速AMP與CO2之吸收速率，而以擬一級反應之模式來描述可得到令人滿意之結果。

關鍵字

二氧化碳 ； 反應動力學

並列摘要

This objective of research was to measure the reaction kinetics data for the reaction between CO2 and Piperazine (PZ) / 2-Amino-2-methyl-1-propanol (AMP) / water. The systems studied are：PZ (0.1-0.4 kmol·m-3) / AMP (1.0 kmol·m-3) and PZ (0.1-0.4 kmol·m-3) / AMP (1.5 kmol·m-3). The temperature ranges from 30 to 40℃. The specific CO2 absorption were measured by a wetted-wall column apparatus. The physicochemical properties such as density, viscosity, Henry’s law constant and diffusivity of nitrous oxide in amines were also measured.
It is found that the amount of PZ can enhance CO2 absorption rate into aqueous PZ / AMP solution. A first-order reaction rate was used to describe the reactions of CO2 with PZ and CO2 with AMP in PZ / AMP / H2O solution. The model is satisfactory of represent CO2 absorption rates in aqueous PZ / AMP systems.

並列關鍵字

AMP ； CO2 ； PZ

參考文獻

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