Raman Spectroscopy and X-ray Diffraction Analysis of the Structural Characteristics of Fluidized Bed Gasification Fly Ash

Kelebopile, Leungo; Sun, Rui; Zhang, X.; Xu, Ping

doi:10.1007/978-3-642-30445-3_91

Cited by 1 publication

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“…Besides, the high range variation of D fwhm, G fwhm, and I D / I G confirmed the presence of various kinds of unburned carbon. Kelebopile et al investigated the carbon structure of fly ash obtained from a circulating fluidized bed (CFB) at 1000 °C and other high ash content chars prepared in a drop tube furnace (DTF). The band ratios ( I D / I G and I G / I ALL ) showed that unburned carbon in fly ash was more structurally ordered than char, and long residence times (10–20 s) of fly ash eliminated defects and imperfections of carbon.…”

Section: Ex Situ Characterization Of Products From Thermochemical Pro...mentioning

confidence: 99%

Raman Spectroscopy as a Versatile Tool for Investigating Thermochemical Processing of Coal, Biomass, and Wastes: Recent Advances and Future Perspectives

Xiong

et al. 2020

Energy Fuels

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Raman spectroscopy, as a rapid, high-precision, and nondestructive tool, can be used for analyzing the samples from gas to solid, from ex situ to in situ, from organic macromolecule to minerals. It has been demonstrated as a powerful tool for characterizing carbonaceous solid fuels and their thermal conversion products. This review provides a systematic overview of the application of Raman spectroscopy for investigating the entire thermochemical processing of coal, biomass, and wastes. After introducing the fundamentals of Raman spectroscopy, its application for characterizing the feedstock (raw coals, biomass, and wastes) is reviewed. Then, using the Raman spectroscopy for ex situ characterization of the products (char and ash) after reactions and in situ diagnostic during reactions are discussed. Besides, some potential advanced Raman spectroscopy techniques are further briefly introduced. Lastly, the challenges and prospects of using Raman spectroscopy to study thermochemical processes are discussed.

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Section: Ex Situ Characterization Of Products From Thermochemical Pro...mentioning

confidence: 99%

Raman Spectroscopy as a Versatile Tool for Investigating Thermochemical Processing of Coal, Biomass, and Wastes: Recent Advances and Future Perspectives

Xiong

et al. 2020

Energy Fuels

View full text Add to dashboard Cite

show abstract

Raman Spectroscopy and X-ray Diffraction Analysis of the Structural Characteristics of Fluidized Bed Gasification Fly Ash

Cited by 1 publication

References 28 publications

Raman Spectroscopy as a Versatile Tool for Investigating Thermochemical Processing of Coal, Biomass, and Wastes: Recent Advances and Future Perspectives

Raman Spectroscopy as a Versatile Tool for Investigating Thermochemical Processing of Coal, Biomass, and Wastes: Recent Advances and Future Perspectives

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