Development of an analytical method for the main organic compounds derived from thermochemical conversion of biomass

• Catherine Tessini ^[2] ; Romina Romero ^[1] ; Mauricio Escobar ^[1] ; Alfredo Gordon ^[1] ; Mauricio Flores ^[1]
  1. [1] Universidad de Concepción

     Universidad de Concepción

     Comuna de Concepción, Chile

     
  2. [2] Universidad Técnica Federico Santa María Departamento de Química
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 61, Nº. 1, 2016, págs. 2837-2842
• Idioma: inglés
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• Resumen

  • In this work, high-performance liquid chromatography (HPLC-UV/RID) is applied to the simultaneous determination of acetic acid, formic acid, acetol, glyoxal, glycolaldehyde and levoglucosan in a by-product in an aqueous liquid phase that is produced by the Hydrothermal Carbonization (HTC) process and inan aqueous bio-oil phase, which comes from a fast pyrolysis process. Both processes were run in forest biomass. For the development and optimization of the proposed method, some chromatographic columns were evaluated based on separation principles of reversed phase and ionic exclusion, although it was previously performed with a solid phase extraction (SPE) process. Concentrations of acetic and formic acids in the liquids of the HTC process ranged from 0.26 to 1.5 % and from 0.14 to 2.7 %, respectively. Concentrations of acetic and formic acids, levoglucosan and glycolaldehyde in the aqueous bio-oil phases ranged from 0.4 - 4.6 %, 0.4 - 1.4 %, 0.13 - 2.5 % and 0.5 - 3.5%, respectively.