Combined NMR structural characterization and thermogravimetric analyses for the assessment of the AAEM effect during lignocellulosic biomass pyrolysis

Khouloud Haddad, Mejdi Jeguirim, Salah Jellali, Chamseddine Guizani, Luc Delmotte, Simona Bennici and Lionel Limousy

Energy, 2017, vol. 134, issue C, 10-23

Abstract: The goal of the present research is to study the effect of the inorganic species on the pyrolysis mechanism of lignocellulosic biomass. Many contradictions as the catalytic role of inorganic salts characterize the research works published up to now. These ambiguities are reasonably due to the morphological and structural modifications of the reacting biomass by the various demineralization and impregnation methods, that impact on the pyrolysis mechanism. In order to clarify the effect of inorganics on the pyrolysis mechanism, alkali and alkaline earth (AAEM) containing salts were deposited by impregnation method on cypress sawdust. Nuclear magnetic resonance analyses showed that the biomass structure was preserved and that metal deposition passes through a cationic exchange mechanism.

Keywords: Pyrolysis; Alkali and alkaline earth metals; Lignocellulosic biomass; Thermogravimetry (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (12)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:134:y:2017:i:c:p:10-23

DOI: 10.1016/j.energy.2017.06.022

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