New Approaches in Modeling and Simulation of CO2 Absorption Reactor by Activated Potassium Carbonate Solution
Round 1
Reviewer 1 Report
The research paper titled: 'New approaches in modeling and simulation of CO2 absorption reactor by activated potassium carbonate solution' described a mathematical model to simulate a CO2 absorption process. This model has been further validated using results from an industrial facility.
The manuscript is well-written in English althought I recommend to check it. The introduction and methodology are adequate and the results from the model approached quite well in comparison with the experiments. I recommend this work for publication in Processes after addressing the following minor comments:
1) Hot pottasium carbonate is not adequate for postcombustion capture applied to flue gas from PC power plants. The abstract and the introduction should be focused on acid gas treating. CO2 capture might be mentioned after but the main application is acid gas treating.
2) Figure 1a should be numbered as Figure 1 and Figure 1b should be numbered as Figure 2. Figure 2 is quite important and should be improved and increased its size
3) Figure 10 and 11 require a legend to express the meaning of curves plotted in these Figures.
4) A comparative table should be include at the end of each result subsection in which the main results should be summarized for further comparison with the experimental results
5) Equations included in section 4.3 have to move to methodology section
Author Response
Dear Reviewer 1
We would like to thank your for your efforts to improve our work!
Please find as attashed document the responses to your comments and suggestions!
Author Response File: 
Author Response.pdf
Reviewer 2 Report
The work presented on modelling of CO2 absorption reactor by activated potassium carbonate solution is really innovative. I would recommend the following suggestions:
1) Current 4 shows fastly no specifications. They should be clearly included in the table too.2) Model should be presented with experimental data in a graph at least with more than two parameters for right validation.
3) The model is always showing transient data which can not be compared with the experimental result. How are you sure the results are correct? At least an experimental average should be compared with simulations.
4) the authors should add other papers with also new approaches such as:
-Sotenko M; Fernandez-Garcia J; Hu G; Derevschikov V; Lysikov A; Parkhomchuk E; Semeykina V; Okunev A; Rebrov EV (2017) Performance of novel CaO-based sorbents in high temperature CO2 capture under RF heating. Chemical Engineering and Processing, 122 , pp. 487-492.
-Fernández J; Sotenko M; Derevschikov V; Lysikov A; Rebrov EV (2016) A radiofrequency heated reactor system for post-combustion carbon capture. Chemical Engineering and Processing: Process Intensification, 108 , pp. 17-26.
-M. Erans, V. Manovic, E.J. Anthony, Calcium looping sorbents for CO2 capture,
Appl. Energy. 180 (2016) 722–742,
-M.E. Diego, B. Arias, A. Méndez, M. Lorenzo, L. DÃaz, A. Sánchez-biezma,
J.C. Abanades, Experimental testing of a sorbent reactivation process in La Pereda
1.7 MWth calcium looping pilot plant, Int. J. Greenh. Gas Control. 50 (2016) 14–22,
-M.S. Yancheshmeh, H.R. Radfarnia, M.C. Iliuta, High temperature CO2 sorbents and
their application for hydrogen production by sorption enhanced steam reforming
process, Chem. Eng. J. 283 (2016) 420–444,
Author Response
Dear Reviewer 2
We would like to thank your for your efforts to improve our work!
Please find as attashed document the responses to your comments and suggestions!
Author Response File: Author Response.pdf
