CO2 absorption into catalyzed potassium carbonate–bicarbonate solutions: Kinetics and stability of the enzyme carbonic anhydrase as a biocatalyst

2014 ◽  
Vol 116 ◽  
pp. 567-575 ◽  
Author(s):  
Xinhuai Ye ◽  
Yongqi Lu
Keyword(s):  
Carbonic Anhydrase ◽  
Potassium Carbonate ◽  
Co2 Absorption ◽  
Bicarbonate Solutions

INFLUENCE OF ETHYLENEDIAMINE CONTENT OVER PERFORMANCE OF CO2 ABSORPTION INTO POTASSIUM CARBONATE SOLUTIONS

2021 ◽  
Vol 20 (4) ◽  
pp. 507-516
Author(s):  
Ramona Tataru-Farmus ◽  
Maria Harja ◽  
Elisabeta Droniuc Hultuana ◽  
Consuelo Gomez de Castro ◽  
Gabriela Ciobanu ◽  
...  
Keyword(s):  
Potassium Carbonate ◽  
Co2 Absorption ◽  
Carbonate Solutions

scholarly journals New Approaches in Modeling and Simulation of CO2 Absorption Reactor by Activated Potassium Carbonate Solution

Processes ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 78
Author(s):  
Maria Harja ◽  
Gabriela Ciobanu ◽  
Tatjána Juzsakova ◽  
Igor Cretescu
Keyword(s):  
Mathematical Model ◽  
Potassium Carbonate ◽  
Energy Savings ◽  
Co2 Concentration ◽  
Packed Bed ◽  
Packed Bed Reactor ◽  
Co2 Absorption ◽  
Operational Parameter ◽  
Proposed Model ◽  
Strong Relation

The increase of CO2 concentration in the atmosphere is in strong relation with the human-induced warming up due to industrial processes, transportation, etc. In order to reduce the CO2 content, end of pipe post-combustion methods can be used in addition to other methods and techniques. The CO2 capture by absorption in potassium carbonate–bicarbonate activated solutions remains a viable method. In this study, a mathematical model for a packed bed reactor has been developed and tested. The mathematical model is tested for an industrial reactor based on CO2 absorption in Carsol solutions. The proposed model was validated by resolving for CO2 and water content, carbonate–bicarbonate, concentrations etc. For each operational parameter the error was calculated. The error for CO2 concentration is up to 4%. The height of the packed reactor is calculated as function of CO2 concentration in the final gas phase. The validated model can also be used for absorbing other CO2 streams taking into account the fact that its efficiency was proved in industrial scale. Future reactors used for CO2 absorption should consist of two parts in order to use partially regenerated solutions in the first part, with significant energy savings in the operational costs.

One-pot synthesis of efficient carbonic anhydrase-zeolitic imidazolate framework-8 composite for enhancing CO2 absorption

2020 ◽  
Vol 40 ◽  
pp. 101211
Author(s):  
Mine Du ◽  
Han Chen ◽  
Jiexu Ye ◽  
Shihan Zhang ◽  
Jianmeng Chen ◽  
...  
Keyword(s):  
Carbonic Anhydrase ◽  
Co2 Absorption ◽  
One Pot ◽  
Zeolitic Imidazolate Framework ◽  
One Pot Synthesis

Effect of Potassium Carbonate Additive on CO2 Absorption in Lithium Zirconate Powder

1998 ◽  
Vol 547 ◽  
Author(s):  
T. Ohashi ◽  
K. Nakagawa
Keyword(s):  
Potassium Carbonate ◽  
Room Temperature ◽  
Absorption Rate ◽  
Co2 Absorption ◽  
The Past ◽  
Lithium Zirconate ◽  
Kinetics Of

AbstractLithium zirconate, which reacts with CO2 reversibly at temperatures over 500°C, is expected to find wider application than conventional CO2 absorbents, as the latter can be used only at room temperature. We examined the effect of potassium carbonate, which had usually been added to facilitate the formation of lithium zirconate in the past, on the kinetics of CO2 absorption reaction. The result shows that the CO2 absorption rate of lithium zirconate powder is extremely accelerated by the potassium carbonate additive. We conclude that this acceleration results from the formation of a eutectic carbonate composed of Li2CO3 and K2CO3.

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