GC × GC/TOFMS analysis concerning the identification of organic compounds extracted from the aqueous phase of sugarcane straw fast pyrolysis oil

Maciel, Gabriela Pereira da Silva; Machado, Maria Elisabete; Barbará, Janaína Aith; Molin, Daniela Dal; Caramão, Elina Bastos; Jacques, Rosângela Assis

doi:10.1016/j.biombioe.2015.11.009

Cited by 19 publications

(7 citation statements)

References 40 publications

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Section: Principles Of Two-dimensional Gas Chromatographyunclassified

“…Pereira da Silva Maciel et al focused on identifying organic compounds extracted from an aqueous phase of a thermal sugar cane straw bio-oil. The bio-oil was mainly composed of phenols, aldehydes, ketones, and acids. Mass spectra deconvolution had to be applied to identify some coeluting compounds (e.g., methylfuranone and pyranone) …”

Section: Two-dimensional Gas Chromatography Characterization Of Pyrol...mentioning

confidence: 99%

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Two-Dimensional Gas Chromatography Characterization of Pyrolysis Bio-oils: A Review

2021

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Raw pyrolysis bio-oils can be used as liquid biofuels for district heating or as raw materials for producing O-containing substances. Additionally, they can be upgraded using different processes to obtain products with promising potential to be used as advanced liquid transportation biofuels. The more widespread use of the raw and upgraded bio-oils is associated with the detailed knowledge of their chemical composition. The chemical characterization of both the raw and upgraded bio-oils is challenging as bio-oils contain thousands of different, mostly O-containing, chemicals. One of the most critical problems in bio-oil analytics is identifying currently unknown bio-oil compounds, which can be achieved using powerful techniques such as two-dimensional gas chromatography (2D-GC). 2D-GC allows one to analyze volatile and semivolatile bio-oil compounds and provides much more detailed analytical information due to its higher chromatographic resolution than conventional one-dimensional GC. This review aims to summarize and critically evaluate the studies devoted to the 2D-GC characterization of pyrolysis bio-oils. Thermal and catalytic raw pyrolysis bio-oils and hydrotreated bio-oils are of interest to this review. Additionally, the strategies and goals for further research are outlined.

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Section: Principles Of Two-dimensional Gas Chromatographyunclassified

Section: Two-dimensional Gas Chromatography Characterization Of Pyrol...mentioning

confidence: 99%

Two-Dimensional Gas Chromatography Characterization of Pyrolysis Bio-oils: A Review

2021

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“…The results of the analysis of bio-oils have demonstrated efficiency in the combination of techniques, especially, GC × GC/TOFMS, showed the presence of 123 compounds belonging, mostly, to the aldehydes and carboxylic acids. Maciel et al [218] also studied the fast pyrolysis of sugarcane straw by GC × GC/TOFMS, but researching the aqueous phase of this process. They found that this phase is very similar to the bio-oil but enriched more soluble phenols, such as ortho, meta and para cresols.…”

Section: Comprehensive Two-dimensional Gas Chromatography (Gc × Gc)mentioning

confidence: 99%

“…Eucalyptus [220], mango seed [35], coconut fiber [221], residual cake of crambe seed [37] and castor seed [222], waste of forest industry [36], fruits of palm and pine wood chips [223], sugarcane bagasse [61] sugarcane straw [119] and forest wood sawdust (lignocel) [219] were some of these. These biomasses were submitted to different kinds of pyrolysis (slow [220,222], fast [35,37,177,221,223], intermediate [36] and catalyst [34,218]). Many other analytical methods can be used to improve the quality of bio-oil and to facilitate its characterization.…”

Section: Comprehensive Two-dimensional Gas Chromatography (Gc × Gc)mentioning

confidence: 99%

Chromatographic Methods Applied to the Characterization of Bio-Oil from the Pyrolysis of Agro-Industrial Biomasses

Moraes¹,

Tomasini²,

Silva³

et al. 2017

Frontiers in Bioenergy and Biofuels

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Biomass conversion into solid, liquid and gaseous products by pyrolytic technology is one of the most promising alternative to convert the biomass into useful products and energy. The total characterization of the products from the pyrolysis of biomass is one of the great challenges in this field, mainly due to their molecular complexity. Pyrolysis is a process that causes degradation of biomass in a non-oxidative atmosphere, at relatively high temperatures, producing a solid residue rich in carbon and mineral matter, gases and bio-oil. The yield and properties of the products depend on the nature of the biomass and the type of the pyrolysis process (type of reactor, temperature, gas flow, catalyst). Due to the high molecular complexity of bio-oil, many different technical had been developed to their complete characterization. This chapter describes the principles of the techniques and main application of chromatographic methods (GC, LC, GC × GC, LC × LC, Nano-LC) in the analysis of bio-oils derived from thermo-degradation of biomasses. Especial attention is carried out to two-dimensional techniques that represent the state of the art in terms of separation, sensibility, selectivity and velocity of data acquisition for characterization of complex organic mixtures. For proper use of bio-oil in the chemical industry, it is essential the identification and unambiguous determination of its major constituents. Only then, it is possible to propose a recovery route of some of these components for the development of an industry dedicated to a bio-refinery. For this, chromatographic methods, especially GC × GC/MS, are fundamental because they allow analysis with high sensitivity and accuracy in identifying each constituent of the bio-oil.

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“…Maciel et al [158] also studied the pyrolysis of sugarcane straw by GC × GC/TOFMS, with a focus on the composition of the aqueous phase. Organic solvents were employed to extract the components of the aqueous phase, and the composition of the organic extracts was similar to the one found in bio-oil, except that the aqueous phase extracts were richer in phenols, such as ortho, meta and para cresols.…”

Section: Application Of Gc × Gc To Pyrolytic Liquids Derived From Biomentioning

confidence: 99%

Comprehensive Two-Dimensional Gas Chromatography and Its Application to the Investigation of Pyrolytic Liquids

Maciel¹,

Silva²,

Bispo³

et al. 2017

Pyrolysis

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The chapter presents basic principles of one-dimensional gas chromatography (1D-GC) and comprehensive two-dimensional gas chromatography (GC × GC) related to the main advantages of the two-dimensional technique, as well as its application to the study of organic compounds in liquids derived from coal, mainly through pyrolysis and extraction. It also shows the investigation of compounds contained in bio-oils obtained from biomass through pyrolysis, using GC × GC. Advances in scientific knowledge related to the composition of these complex matrices are shown through different examples of GC × GC analyses, such as the identification of trace compounds that would not be perceived by 1D-GC, organized patterns of elution of structurally related compounds that help their identification, etc. Examples shown make it clear that GC × GC is the technique of choice to elucidate composition of these complex matrices.

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GC × GC/TOFMS analysis concerning the identification of organic compounds extracted from the aqueous phase of sugarcane straw fast pyrolysis oil

Cited by 19 publications

References 40 publications

Two-Dimensional Gas Chromatography Characterization of Pyrolysis Bio-oils: A Review

Two-Dimensional Gas Chromatography Characterization of Pyrolysis Bio-oils: A Review

Chromatographic Methods Applied to the Characterization of Bio-Oil from the Pyrolysis of Agro-Industrial Biomasses

Comprehensive Two-Dimensional Gas Chromatography and Its Application to the Investigation of Pyrolytic Liquids

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