Dataset for SO2, SO3, H2SO4 and H2O infrared absorption spectra at 300° C and 350° C temperatures

Ilya Dunayevskiy; Jason Kriesel; Andrea Biasioli; Yu-Chien Alice Chien; Derek Dunn-Rankin; Lawrence Muzio; Richard Himes

doi:10.1016/j.dib.2023.109066

Dataset for SO₂, SO₃, H₂SO₄ and H₂O infrared absorption spectra at 300° C and 350° C temperatures

Data Brief. 2023 Mar 21:48:109066. doi: 10.1016/j.dib.2023.109066. eCollection 2023 Jun.

Authors

Ilya Dunayevskiy¹, Jason Kriesel¹, Andrea Biasioli², Yu-Chien Alice Chien², Derek Dunn-Rankin², Lawrence Muzio³, Richard Himes⁴

Affiliations

¹ Opto-Knowledge Systems, Inc (OKSI), 19805 Hamilton Ave., Torrance, CA 90502, USA.
² Mechanical and Aerospace Engineering, University of California, Irvine (UCI), 4200 Engineering Gateway, Irvine, CA 92697, USA.
³ Fossil Energy Research Corporation (FERCo), 23342C South Pointe Dr., Laguna Hills, CA 92653, USA.
⁴ Electric Power Research Institute (EPRI), 3420 Hillview Ave, Palo Alto, CA 94304, USA.

Abstract

The data presented here consists of library spectra obtained for use with a laser absorption spectroscopy gas sensor. The spectra include absorbance data for SO₂, SO₃, H₂O and H₂SO₄ at 300° C and 350° C temperatures in two wavelength bands, 7-8 µm and 8-9 µm. Datasets were collected in a heated multi-pass absorption Herriott cell using two tunable external cavity quantum cascade laser sources, with the resulting transmission signal measured using a thermoelectrically cooled MCT detector. The absorbance was calculated from measurements taken with and without gas samples and scaled for the length of the multi-pass cell. The data will be useful for scientists and engineers building SO₃ and H₂SO₄ gas sensing equipment for emission monitoring, process control, and other applications.

Keywords: CEMS; EC-QCL; Flue gas monitoring; Sulfur trioxide; Sulfuric acid; TLAS.