Work

Investigating the Spectral Characteristics of High-Temperature Gases in Low-Carbon Chemical Pool Fires and Developing a Spectral Model

Year: 2025

Type: article

Abstract: Low-carbon chemical fires pose significant hazards, and remote sensing of high-temperature gas emissions from these fires is a critical method for identifying and assessing their environmental impact. Analyzing the spectral characteristics of gases produced by low-carbon chemical pool fires and developing spectral radiation models can establish a foundation for remote pollution monitoring. However, such studies remain scarce. Using a custom-built high-temperature gas spectroscopy platform, this study extracts spectral features of gases emitted by low-carbon chemical pool fires. We investigate spectral interference mechanisms among combustion products and develop a high-precision spectral radiation model to support remote fire pollution monitoring. Experimental results reveal distinct spectral bands for key gases: CO2 peaks near 2.7 μm and 4.35 μm, SO2 at 4.05 μm, 7.5 μm, and 9.0 μm, NO at 5.5 μm, and NO2 at 3.6 μm and 6.3 μm. The proposed spectral radiation model accurately simulates the position and shape of spectral peaks. For carbon disulfide and acetonitrile combustion products, the model achieves prediction accuracies of 83.4–96.9% and 79.2–95.3%, respectively.

Source: Toxics

DOI: 10.3390/toxics13100877

Authors: Gengfeng Jiang, Zhili Chen, Yaquan Liang, Peng Li, Qiang Liu, Lv Zhou

Institutions: Guilin University of Technology, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology

Language: English

Topic: Spectroscopy and Laser Applications

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

SDG: Climate action

Open Access status: gold

Estimated APC paid: $3,137