The Reaction Kinetics of the Carbon Dioxide in the Aqueous sterically hindered amines (AHPD) / Polyamine (DETA) Solutions
| Autor: | Chien-Lin Lin, 林建霖 |
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| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 The objective of this research is to determine the reaction kinetics of the CO_2 into aqueous solutions of 2-Amino-2-(hydroxymethyl)-1,3-propanediol（AHPD）and into mixed amine solutions of AHPD and DETA. The system studied were : AHPD（25, 30, 35, 40 wt%）＋ H_2 O and AHPD（25 wt%）＋ DETA（15 wt%）＋ H_2 O, AHPD（30 wt%）＋ DETA（10 wt%）＋ H_2 O, AHPD（35 wt%）＋ DETA（5 wt%）＋ H_2 O. The physical properties such as density, viscosity, Henry’s law constant and diffusivity of the system were also be measured. Due to the chemical reaction of CO_2 with the amine solutions, the N_2 O analogy was used to estimate the chemical solubility and chemical diffusivity of CO_2 into aqueous amine solutions. The reaction rate of constants were calculated by a hybrid model which combines the pseudo-first order reaction mechanism for the reaction of CO_2 with AHPD and the zwitterion mechanism for the absorption of CO_2 into DETA. The results of this research can be used to design the CO_2 absorption process of CO_2 absorbent ( AHPD ＋ DETA ). |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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