In situ investigation of carbon gasification using ultrabroadband coherent anti-Stokes Raman scattering

Ran Y, Boden A, Kuester F, An F, Richter A, Guhl S, Nolte S, Ackermann R (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Applied Physics Letters American Institute of Physics (AIP)

Book Volume: 119

Article Number: 0074044

Journal Issue: 24

DOI: 10.1063/5.0074044

Abstract

The gasification of carbonaceous feedstocks usually takes place in high-pressure, high-temperature reactors, making it difficult to have direct access to the reaction site. Since the greenhouse gas CO2 is a major component in gasification, there is an urgent need for a better understanding of these processes. In this study, we investigate carbon gasification in a CO2 atmosphere using the ultrabroadband, coherent anti-Stokes Raman spectroscopy (CARS). In contrast to conventional three beam CARS, this approach allows the simultaneous determination of the temperature of the CO2 atmosphere and the concentration of the reaction product CO. We show that temperature drop and increase in CO are directly linked to the feedstock conversion measured by thermogravimetric analysis. Due to gasification, a considerable temperature drop of up to 200 K was measured, which was predicted by simulations in the literature but has not been confirmed experimentally yet.

Involved external institutions

Friedrich-Schiller-Universität Jena DE Germany (DE) Technische Universität Bergakademie Freiberg DE Germany (DE)

How to cite

APA:

Ran, Y., Boden, A., Kuester, F., An, F., Richter, A., Guhl, S.,... Ackermann, R. (2021). In situ investigation of carbon gasification using ultrabroadband coherent anti-Stokes Raman scattering. Applied Physics Letters, 119(24). https://doi.org/10.1063/5.0074044

MLA:

Ran, Yang, et al. "In situ investigation of carbon gasification using ultrabroadband coherent anti-Stokes Raman scattering." Applied Physics Letters 119.24 (2021).

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