Reaction kinetics of CO2 in aqueous 2-(2-aminoethylamino)ethanol solutions using a stirred cell reactor

2014 ◽  
Vol 24 ◽  
pp. 106-114 ◽  
Author(s):  
Hanna Kierzkowska-Pawlak ◽  
Andrzej Chacuk ◽  
Marta Siemieniec
2019 ◽  
Vol 26 (1) ◽  
pp. 26-32
Author(s):  
Sanaa Rabie Saleh ◽  
Ahmed Daham Wiheeb

Binding organic liquids are a strong base of amidine have been used for CO2 capture. Up to now, there is no known datum on the reaction kinetics of CO2 with 1,5-Diazabicyclo[4.3.0]non-5-ene (DBN). In this paper, Kinetics of reaction between CO2 and DBN/MDEA in 1-Pentanol were performed utilizing the stirred cell reactor with DBN concentration (2 – 2.9 M) and at room temperature. The reaction path was qualified using zwitterion and the termolecular mechanism. From the kinetic datum with DBN concentrations (2 – 2.9 M), it was found that the capturing process happen in a fast reaction system with a second-order reaction kinetics of DBN/MDEA and first order with CO2. In addition, CO2 absorption was achieved using gas – liquid contact system. CO2 absorption rate was (2×10^(-5)-2.8 × 10^(-5) kmol⁄m^2 .sec) at DBN concentration (2 – 2.9 M). Finally, it is known that DBN/MDEA/1-Pentanol/CO2 system is easily switchable and can be used both CO2 capture and for other applications that require rapid change of medium from nonionic to ionic liquid.


2003 ◽  
Vol 31 (2) ◽  
pp. 163-175 ◽  
Author(s):  
L Kucka ◽  
J Richter ◽  
E.Y Kenig ◽  
A Górak

2020 ◽  
Author(s):  
Camilo A. Mesa ◽  
Ludmilla Steier ◽  
Benjamin Moss ◽  
Laia Francàs ◽  
James E. Thorne ◽  
...  

<p><i>Operando</i> spectroelectrochemical analysis is used to determine the water oxidation reaction kinetics for hematite photoanodes prepared using four different synthetic procedures. Whilst these photoanodes exhibit very different current / voltage performance, their underlying water oxidation kinetics are found to be almost invariant. Lower photoanode performance was found to correlate with the observation of optical signals indicative of charge accumulation in mid-gap oxygen vacancy states, indicating these states do not contribute directly to water oxidation.</p>


Sign in / Sign up

Export Citation Format

Share Document