NTPC Transactions on Energy Research

A NETRA Initiative
Editor(s):

S.Shaswattam, Anil Kumar Das, Subrata Sarkar, Prahlad Halder

ISBN:
978-94-6463-848-6
Type of Book:
Edited Volume
Copyright Year:
2025
Open Access

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ChapterPages 15-28

Experimental Investigation of CO2 Sequestration in Fly Ash and Lime Composites via Mineral Carbonation: A Lab-Scale Study

Authors
Gaurav Richhariya1, *, Sunit Kumar Singh1, Pranay Sharma1, Aarti Sharma1, G. D. Vani1, Ch. Srinivasu1, Anil Kumar Das1
1Ash Utilization Group, NTPC Energy Technology Research Alliance, NTPC Ltd., Greater Noida, Uttar Pradesh, India
*Corresponding author. Email: grichhariya01@ntpc.co.in
Corresponding Author
Gaurav Richhariya
Available Online 1 October 2025.
DOI
10.2991/978-94-6463-849-3_2How to use a DOI?
Keywords
CO2 sequestration; mineral carbonation; Fly ash & Concrete
Abstract

CO2 emissions are widely acknowledged as the main factor behind the rapid increase in global temperatures, resulting in substantial changes to climate system. Emissions and waste from thermal power plants pose a serious environmental concern. This study aims to explore the cost-effective bulk utilization of fly ash for CO2 sequestration. The fly ash and hydrated lime was mixed in varying proportions and tested for CO2 sequestration, compressive strength, consistency, and free water content as a function of CO2 mixing rate and injection pressure. Coal fly ash and hydrated lime composition with 4% (wt.) lime resulted in an impressive compression strength of 1.7 MPa and a CO2 absorption of 5.4%.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits any noncommercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if you modified the licensed material. You do not have permission under this license to share adapted material derived from this chapter or parts of it.
Book Title
NTPC Transactions on Energy Research
Book Sub Title
A NETRA Initiative
Publication Date
1 October 2025
Print ISBN
978-94-6463-848-6
E-ISBN
978-94-6463-849-3
DOI
10.2991/978-94-6463-849-3_2How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits any noncommercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if you modified the licensed material. You do not have permission under this license to share adapted material derived from this chapter or parts of it.

Cite this article

risenwbib
TY  - CHAP
AU  - Gaurav Richhariya
AU  - Sunit Kumar Singh
AU  - Pranay Sharma
AU  - Aarti Sharma
AU  - G. D. Vani
AU  - Ch. Srinivasu
AU  - Anil Kumar Das
ED  - S.Shaswattam
ED  - Anil Kumar Das
ED  - Subrata Sarkar
ED  - Prahlad Halder
PY  - 2025
DA  - 2025/10/01
TI  - Experimental Investigation of CO₂ Sequestration in Fly Ash and Lime Composites via Mineral Carbonation: A Lab-Scale Study
BT  - NTPC Transactions on Energy Research
PB  - Springer nature singapore
SP  - 15
EP  - 28
CY  - singapore
SN  - 978-94-6463-849-3
UR  - https://doi.org/10.2991/978-94-6463-849-3_2
DO  - 10.2991/978-94-6463-849-3_2
ID  - Richhariya2025
ER  -