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 236-247

Geospatial Mapping of Chlorine in NTPC-Linked Coalmines

Authors
Aarti Sharma1, Gaurav Richhariya1, *, Pranay Sharma1, Anil Kumar Das1
1Coal Lab, 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_17How to use a DOI?
Keywords
Chlorine mapping; iron; sulphur; alkali metals; slag; NTPC linked coal mines
Abstract

Chlorine (Cl) is a trace element present in coal which undergoes complex changes when coal is combusted in boiler. Chlorine may combine with iron and sulphur in slag deposits in areas of the boiler where reducing conditions occur to form compounds that can corrode the wall tubes. In the present study, chlorine content mapping of major NTPC linked coal mines has been done using Trace Elemental Instruments (TEI) chlorine analyzer “Explorer-X”. While most of the Indian coal mines exhibit low chlorine levels between 10 and 60 ppm, the Ragavpuram coal deposit stands out with a significantly higher concentration of 146 ppm.

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_17How 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  - Aarti Sharma
AU  - Gaurav Richhariya
AU  - Pranay Sharma
AU  - Anil Kumar Das
ED  - S.Shaswattam
ED  - Anil Kumar Das
ED  - Subrata Sarkar
ED  - Prahlad Halder
PY  - 2025
DA  - 2025/10/01
TI  - Geospatial Mapping of Chlorine in NTPC-Linked Coalmines
BT  - NTPC Transactions on Energy Research
PB  - Springer nature singapore
SP  - 236
EP  - 247
CY  - singapore
SN  - 978-94-6463-849-3
UR  - https://doi.org/10.2991/978-94-6463-849-3_17
DO  - 10.2991/978-94-6463-849-3_17
ID  - Sharma2025
ER  -