Data/hora: 21/06/2024 23:51:28

Biblioteca(s): | Embrapa Agroenergia.
Data corrente: | 11/11/2013
Data da última atualização: | 21/09/2017
Autoria: | ABDELNUR, P. V.; VAZ, B. G.; ROCHA, J. D.; ALMEIDA, M. B. B. de; TEIXEIRA, M. A. G.; PEREIRA, R. C. L.
Afiliação: | PATRICIA VERARDI ABDELNUR, CNPAE; Boniek G. Vaz, Universidade Federal do Goiás; JOSE DILCIO ROCHA, CNPAE; Marlon B. B. de Almeida, Petrobrás; Marco Antonio G. Teixeira, Petrobrás; Rosana C. L. Pereira, Petrobras.
Título: | Characterization of bio-oils from different pyrolysis process steps and biomass using high-resolution mass spectrometry.
Ano de publicação: | 2013
Fonte/Imprenta: | Energy & Fuels, v. 27, n. 11, p. 6646-6654, 2013.
DOI: | 10.1021/ef400788v
Idioma: | Inglês
Conteúdo: | Next-generation biofuels have been widely investigated because they have particular advantages compared to first-generation biofuels. Pyrolysis is an example of a thermochemical route extensively used in oil and coal industries worldwide to produce these biofuels. Strategies for low-cost upgrading are among the biggest challenges facing the adoption of bio-oils in the development of commercial biofuels. Specific biomass sources could be the best option for generating bio-oil with the required properties. For this, it is necessary to understand the composition of these biomasses and their bio-oils. Here, we analyzed bio-oil samples from the fast pyrolysis of different biomasses collected during two different steps of the process by direct-infusion high-resolution mass spectrometry. First, a comparative study of two common high-resolution mass spectrometers, quadrupole time-of-flight mass spectrometry (Q-TOF MS) and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS), was performed to validate the methodology and to investigate the differences in mass discrimination and resolution. FT-ICR MS showed the best performance because of its unsurpassed resolution and accuracy. We apply the common petroleomics tools to interpret the mass spectra obtained. The FT-ICR MS analysis reveals that bio-oils are dominated by Ox species. The class profile of bio-oils was strongly affected by the biomass and steps of the pyrolysis process.
Palavras-Chave: | Bio-oils.
Thesaurus Nal: | biofuels; biomass.
Categoria do assunto: | --
Registro original: | Embrapa Agroenergia (CNPAE)
Exemplares: | CNPAE - (2287-1) - UPC - AP - DD -  -  -  - DIS