Integrated Absorption–Adsorption Process for Waste-Free Decontamination of Gases from Sulfur Dioxide, Part 2: CFD Modeling and Experimental Investigation of a Bubble-Cap Tray

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

Summary of the work: This study introduces a novel, practically waste-free method for sulfur dioxide (SO2) removal from flue gases, combining absorption and adsorption processes.  Modern techniques like CFD and additive manufacturing are applied in designing an efficient bubble-cap tray column. Experimental results affirm the technology's superiority over traditional methods, contributing to advancements in reactor design and offering eco-friendly solutions for flue gas desulfurization

As a reader, I appreciated the emphasis on the scientific discussions and rationale behind the experimental observations. It would be good to combine all the observations to create a cohesive synthesis to answer the question of what all of this means, however, the work is overall well done. To take their investigation further, it is recommended the authors consider Improving the design by optimizing three-phase flow, enhancing mixing, and conducting further kinetic studies in the future. Also consider scalability, long-term stability, and economic feasibility for real-world applications.

Author Response

Dear Reviewer,

Please see the attachment.

Best regards.

Daniela Dzhonova

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

Interesting material worth to be published.

Minor revision is mandatory.

Comments for author File: Comments.pdf

Comments on the Quality of English Language

Minor editing of English is mandatory.

Author Response

Dear Reviewer,

Please see the attachment.

Best regards.

Daniela Dzhonova

Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors

A file with comments/improvements has been uploaded in the Journal's App

Comments for author File: Comments.pdf

Comments on the Quality of English Language

Some improvements in the wording and text refinement should also be done before publication

Author Response

Dear Reviewer,

Please see the attachment.

Best regards.

Daniela Dzhonova

Author Response File: Author Response.pdf

Round 2

Reviewer 3 Report

Comments and Suggestions for Authors

A second round review has been uploaded in the system App. Minor changes are required now. 

Comments for author File: Comments.pdf

Comments on the Quality of English Language

Minor spelling and typos should be corrected

Author Response

Dear Reviewer,

Thank you very much for the review.

Please see the attachment.

Best regards.

Daniela Dzhonova

Author Response File: Author Response.docx