Comprehensive study of the liquid products from slow pyrolysis of crambe seeds: Bio-oil and organic compounds of the aqueous phase

Silva, Raquel V.S.; Pereira, Vinícius B.; Stelzer, Karen T.; Almeida, Tamyres Augusto de; Romeiro, Gilberto A.; Azevedo, Débora A.

doi:10.1016/j.biombioe.2019.02.014

Cited by 28 publications

(15 citation statements)

References 32 publications

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“…Once more phenols were the most abundant compounds followed by sugars. Silva et al [26] employed a lyophilization together a GC × GC-TOFMS and high-resolution MS analysis for the characterization of the aqueous phase from crambe seeds bio-oil. Both techniques allowed the tentative identification of more than 100 compounds.…”

Section: Qualitative and Quantitative Chemical Characterizationmentioning

confidence: 99%

“…These biomasses, except crambe, are agrifood wastes and represent a considerable environmental issue in Brazil, due to the large amounts produced per year. Crambe seed is not an agrifood waste, although is an interesting nonfood source of seed oil with a potential to generate bio-oil [25,26].…”

Section: Biomass Samplesmentioning

confidence: 99%

“…All the biomasses studied in the present research exhibit potential for the bio-oil production via pyrolysis as described in studies of almond of mango seed [32], crambe seed [25,26], spent coffee grounds [33], cassava peel [34], coconut fiber [35,36], coffee silverskin [28], and sugarcane bagasse [35,14]. However, these previous studies were exclusively focused on the screening of bio-oil composition (organic phase) by GC techniques.…”

Section: Lc × Lc Analysis Of Bio-oil Aqueous Phasesmentioning

confidence: 99%

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Comprehensive two‐dimensional liquid chromatography‐based quali‐quantitative screening of aqueous phases from pyrolysis bio‐oils

Lazzari¹,

Arena

Caramão³

et al. 2020

Electrophoresis

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Pyrolysis processes are an alternative to minimize the environmental problem associated to agrifood industrial wastes. The main product resulting from these processes is a highvalue liquid product, called bio-oil. Recently, the use of comprehensive two-dimensional liquid chromatography (LC × LC) has been demonstrated as a useful tool to improve the characterization of the water-soluble phases of bio-oils, considering their complexity and high water content. However, the precise composition of bio-oils from different agrifood byproducts is still unknown. In the present study, the qualitative and quantitative screening of eight aqueous phases from different biomasses, not yet reported in the literature, using LC × LC is presented. The two-dimensional approach was based on the use of two reverse phase separations. An amide column in the first dimension together with a C18 column in the second dimension were employed. Thanks to the use of diode array and mass spectrometry detection, 28 compounds were identified and quantified in the aqueous phase samples with good figures of merit. Samples showed a distinct quali-quantitative composition and a great predominance of compounds belonging to aldehydes, ketones and phenols, most of them with high polarity.

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Section: Qualitative and Quantitative Chemical Characterizationmentioning

confidence: 99%

Section: Biomass Samplesmentioning

confidence: 99%

Section: Lc × Lc Analysis Of Bio-oil Aqueous Phasesmentioning

confidence: 99%

See 1 more Smart Citation

Comprehensive two‐dimensional liquid chromatography‐based quali‐quantitative screening of aqueous phases from pyrolysis bio‐oils

Lazzari¹,

Arena

Caramão³

et al. 2020

Electrophoresis

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“…Pyrolysis biogasoline has a complex composition including components with various functional groups, such as alcohols, hydrocarbons, acids, esters, furans, phenols, ketones, and the corresponding oligomers [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…These properties reflect the interactions of the different bio-oil components and are strongly influenced by the presence of oxygenated compounds [8]. The elemental composition of bio-oil (C, H, N, S, and O contents), determined after elimination of water by distillation, is an important parameter for the characterization of bio-oils and biofuels, because it enables estimation of the fuel's high heating value (HHV), research octane number (RON), and air-fuel ratio (AFR) [10].…”

Section: Introductionmentioning

confidence: 99%

Experimental Assessment of the Performance and Emissions of a Spark-Ignition Engine Using Waste-Derived Biofuels as Additives

et al. 2021

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The use of biofuels for spark ignition engines is proposed to diversify fuel sources and reduce fossil fuel consumption, optimize engine performance, and reduce pollutant emissions. Additionally, when these biofuels are produced from low-grade wastes, they constitute valorisation pathways for these otherwise unprofitable wastes. In this study, ethanol and pyrolysis biogasoline made from low-grade wastes were evaluated as additives for commercial gasoline (RON95, RON98) in tests performed in a spark ignition engine. Binary fuel mixtures of ethanol + gasoline or biogasoline + gasoline with biofuel incorporation of 2% (w/w) to 10% (w/w) were evaluated and compared with ternary fuel mixtures of ethanol + biogasoline + gasoline with biofuel incorporation rates from 1% (w/w) to 5% (w/w). The fuel mix performance was assessed by determination of torque and power, fuel consumption and efficiency, and emissions (HC, CO, and NOx). An electronic control unit (ECU) was used to regulate the air–fuel ratio/lambda and the ignition advance for maximum brake torque (MBT), wide-open throttle (WOT)), and two torque loads for different engine speeds representative of typical driving. The additive incorporation up to 10% often improved efficiency and lowered emissions such as CO and HC relative to both straight gasolines, but NOx increased with the addition of a blend.

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Pyrolysis of Caryota Urens Seeds: Fuel Properties and Compositional Analysis

Kothandaraman¹,

Murugavelh²

2021

Liquid Biofuels

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Comprehensive study of the liquid products from slow pyrolysis of crambe seeds: Bio-oil and organic compounds of the aqueous phase

Cited by 28 publications

References 32 publications

Comprehensive two‐dimensional liquid chromatography‐based quali‐quantitative screening of aqueous phases from pyrolysis bio‐oils

Comprehensive two‐dimensional liquid chromatography‐based quali‐quantitative screening of aqueous phases from pyrolysis bio‐oils

Experimental Assessment of the Performance and Emissions of a Spark-Ignition Engine Using Waste-Derived Biofuels as Additives

Pyrolysis of Caryota Urens Seeds: Fuel Properties and Compositional Analysis

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