Production and chromatographic characterization of bio-oil from the pyrolysis of mango seed waste

Lazzari, Eliane; Schena, Tiago; Primaz, Carmem Tatiane; Maciel, Gabriela Pereira da Silva; Machado, Maria Elisabete; Cardoso, Cláudia Andréa Lima; Jacques, Rosângela Assis; Caramão, Elina Bastos

doi:10.1016/j.indcrop.2015.12.073

Cited by 85 publications

(38 citation statements)

References 28 publications

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“…Several compounds were identified on bio-oil samples from oak pyrolysis at 623 K. In order to clarify the distribution of compounds among different fractions, compounds were distributed in different families: acids, alcohols, aldehydes, ketones, esters, ethers, and hydrocarbons, as commonly reported in other studies [22][23][24][25][26]. Table 4 shows the qualitative composition of bio-oil samples obtained from (non-catalytic and catalytic) pyrolysis and stored at 277 K for 3 months.…”

Section: Chemical Composition Of Stored Bio-oil Samplesmentioning

confidence: 86%

Catalytic Pyrolysis of Chilean Oak: Influence of Brønsted Acid Sites of Chilean Natural Zeolite

2017

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This paper proposes the Chilean natural zeolite as catalyst on bio-oil upgrade processes. The aim of this study was to analyze chemical composition of bio-oil samples obtained from catalytic pyrolysis of Chilean native oak in order to increase bio-oil stability during storage. In order to identify chemical compounds before and after storage, biomass pyrolysis was carried out in a fixed bed reactor at 623 K and bio-oil samples were characterized by gas chromatography/mass spectrophotometry (GC/MS). A bio-oil fractionation method was successfully applied here. Results indicate that bio-oil viscosity decreases due to active sites on the zeolite framework. Active acids sites were associated with an increment of alcohols, aldehydes, and hydrocarbon content during storage. Higher composition on aldehydes and alcohols after storage could be attributed to the occurrence of carbonyl reduction reactions that promotes them. These reactions are influenced by zeolite surface characteristics and could be achieved via the direct contribution of Brønsted acid sites to Chilean natural zeolite.

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Section: Chemical Composition Of Stored Bio-oil Samplesmentioning

confidence: 86%

Catalytic Pyrolysis of Chilean Oak: Influence of Brønsted Acid Sites of Chilean Natural Zeolite

2017

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“…All studies point that coconut fiber biooils are composed essentially by phenols (65%), followed by ketones (15%), this last class presents greater number of tentatively identified compounds [10,27]. These results prove that bio-oil identity was not lost by switch the conventional analyze method to the fast one [10,[24][25][26][27].…”

Section: Real Sample Analysismentioning

confidence: 88%

“…The standard mixture analyzed via fast-GC × GC showed, despite the identification loss of compounds with similar physicochemical characteristics, the elution order as well the separation by classes was maintained [24][25][26]. Therefore, the number of compounds identified in real bio-oil sample using fast-GC × GC will be equal to or higher than those found in conventional method, due to the narrower peaks with higher intensities allied to a low signal noise value.…”

Section: Standard Mixturementioning

confidence: 99%

Fast two‐dimensional gas chromatography applied in the characterization of bio‐oil from the pyrolysis of coconut fibers

Schena

Farrapeira

Bjerk

et al. 2019

Separation Science Plus

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The goal of this paper is the evaluation of fast two‐dimensional gas chromatography applied to bio‐oil samples. Bio‐oils are complex matrixes that usually are analyzed by conventional gas chromatography, involving long columns, long time of analysis due to slow heating rates, and consequently, high cost associated to time consumed. Fast gas chromatography techniques are based on the use of narrow capillary columns that allow the achievement high‐speed separations for complex samples, maintaining excellent resolution. Firstly, the two‐dimensional gas chromatography method was optimized varying the heating rate (10, 15 and 20°C min−1) and achieving the optimal separation at 15°C min−1. This method allies a good separation of bio‐oil constituents with shorter time analysis. The developed method and the traditional conventional two‐dimensional gas chromatography method (used in previous studies) were applied in the analysis of a mixture of 30 standard compounds. Despite coelutions of short retention time peaks (compounds with very similar physical‐chemical properties), the fast two‐dimensional gas chromatography method showed an increase in chromatographic signal and a noise reduction. Good results were also obtained in the real bio‐oil sample. Fast two‐dimensional gas chromatography maintained all the chromatographic information from conventional two‐dimensional gas chromatography, reducing drastically the total time of analysis.

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“…Pyrolysis is an attractive alternative for the use of the residual seeds. Lazzari et al [149] have investigated the pyrolytic liquid of mango seed waste (tegument and almond) using GC × GC/TOFMS. More than 100 compounds were tentatively identified in each bio-oil, through comparison of experimental and reported linear temperature programmed retention indices (LTPRI) and mass spectra.…”

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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Production and chromatographic characterization of bio-oil from the pyrolysis of mango seed waste

Cited by 85 publications

References 28 publications

Catalytic Pyrolysis of Chilean Oak: Influence of Brønsted Acid Sites of Chilean Natural Zeolite

Catalytic Pyrolysis of Chilean Oak: Influence of Brønsted Acid Sites of Chilean Natural Zeolite

Fast two‐dimensional gas chromatography applied in the characterization of bio‐oil from the pyrolysis of coconut fibers

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

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