Remote Measurements of Industrial CO2 Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region

Howes, Neil; Innocenti, Fabrizio; Finlayson, Andrew; Dimopoulos, Chris; Robinson, Rod; Gardiner, Tom

doi:10.3390/rs15225403

Open AccessArticle

Remote Measurements of Industrial CO₂ Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region

by

Neil Howes

^*,

Fabrizio Innocenti

,

Andrew Finlayson

,

Chris Dimopoulos

,

Rod Robinson

and

Tom Gardiner

National Physical Laboratory (NPL), Hampton Road, Middlesex, Teddington TW11 0LW, UK

^*

Author to whom correspondence should be addressed.

Remote Sens. 2023, 15(22), 5403; https://doi.org/10.3390/rs15225403

Submission received: 21 September 2023 / Revised: 9 November 2023 / Accepted: 13 November 2023 / Published: 17 November 2023

(This article belongs to the Special Issue Development and Application for Laser Spectroscopies)

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Abstract

Carbon dioxide (CO₂) is a known greenhouse gas and one of the largest contributors to global warming in the Earth’s atmosphere. The remote detection and measurement of CO₂ from industrial emissions are not routinely carried out and are typically calculated from the fuel combusted or measured directly within ducted vents. However, these methods are not applicable for the quantification of fugitive emissions of CO₂. This work presents the results of remote measurement of CO₂ emissions using the differential absorption lidar (DIAL) technique at a wavelength of ~2 µm. The results from the DIAL measurements compare well with simultaneous in-stack measurements, these datasets were plotted against each other and can be described by a linear regression of y (t/h) = 1.04 x − 0.02, suggesting any bias in the DIAL data is likely small. Moreover, using the definition outlined in EN 15267-3 a lower detection limit of 0.12 t/h was estimated for the 2 µm wavelength DIAL data, this is three orders of magnitude lower than the corresponding CO₂ detection limit measured by NPL in the 1.5 µm wavelength region. Thus, this paper demonstrates the feasibility of high-resolution, ground-based DIAL measurements for quantifying industrial CO₂ emissions.

Keywords: DIAL; laser spectroscopy; carbon dioxide; industrial emissions; GHG; CCUS; LNG

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MDPI and ACS Style

Howes, N.; Innocenti, F.; Finlayson, A.; Dimopoulos, C.; Robinson, R.; Gardiner, T. Remote Measurements of Industrial CO₂ Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region. Remote Sens. 2023, 15, 5403. https://doi.org/10.3390/rs15225403

AMA Style

Howes N, Innocenti F, Finlayson A, Dimopoulos C, Robinson R, Gardiner T. Remote Measurements of Industrial CO₂ Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region. Remote Sensing. 2023; 15(22):5403. https://doi.org/10.3390/rs15225403

Chicago/Turabian Style

Howes, Neil, Fabrizio Innocenti, Andrew Finlayson, Chris Dimopoulos, Rod Robinson, and Tom Gardiner. 2023. "Remote Measurements of Industrial CO₂ Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region" Remote Sensing 15, no. 22: 5403. https://doi.org/10.3390/rs15225403

APA Style

Howes, N., Innocenti, F., Finlayson, A., Dimopoulos, C., Robinson, R., & Gardiner, T. (2023). Remote Measurements of Industrial CO₂ Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region. Remote Sensing, 15(22), 5403. https://doi.org/10.3390/rs15225403

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Remote Measurements of Industrial CO₂ Emissions Using a Ground-Based Differential Absorption Lidar in the 2 µm Wavelength Region

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