Bio oil from pyrolysis of cashew nut shell-characterisation and related properties

Das, Piyali; Sreelatha, T.; Ganesh, Anuradda

doi:10.1016/j.biombioe.2003.12.001

Cited by 161 publications

(73 citation statements)

References 3 publications

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“…Various methods have been reported in literature for the extraction of CNSL from cashew nut shells (CNS), which include, open pan roasting, drum roasting, hot oil roasting, cold extrusion, solvent extraction, etc. The extraction through pyrolysis has been reported recently by Das et al [4] and Tsamba et al [5]. The extraction of CNSL using supercritical carbon dioxide has also been reported by Shobha and Ravindranath [6] and Smith et al [2].…”

Section: Introductionmentioning

confidence: 84%

Economic appraisal of supercritical fluid extraction of refined cashew nut shell liquid

Patel¹,

Bandyopadhyay²,

Ganesh³

2006

Journal of Chromatography A

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Section: Introductionmentioning

confidence: 84%

Economic appraisal of supercritical fluid extraction of refined cashew nut shell liquid

Patel¹,

Bandyopadhyay²,

Ganesh³

2006

Journal of Chromatography A

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“…O bio-óleo é considerado uma mistura complexa de diferentes compostos contendo uma grande variedade de classes químicas [16,17] resultantes do processo de despolimerização dos principais constituintes da biomassa: a celulose, a hemicelulose e a lignina [16,18] . A caracterização dos compostos presentes no bio-óleo tem sido realizada por diferentes técnicas como cromatografia gasosa acoplada à espectrometria de massa (GC/MS) [19][20][21][22][23] , ressonância magnética nuclear (NMR) [13,18,24] e análise elementar [16] . Dentre essas técnicas, a GC/MS é a mais utilizada, porém ela apresenta algumas limitações para amostras complexas devido à coeluição de compostos, o que impossibilita uma correta identificação e posterior quantificação dos analitos [25,26] .…”

Section: Introductionunclassified

Caracterizaçãodefenóisnobio-óleodapirólisedecaroço de pêssego por GC/MS e GC×GC/TOFMS

Migliorini¹,

Moraes²,

Machado³

et al. 2013

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ResumoNeste trabalho analisou-se o bio-óleo produzido pela pirólise de caroços de pêssego usando 1D-GC/qMS (cromatografia gasosa monodimensional acoplada a espectrometria de massa quadrupolar) e GC×GC/ TOFMS (cromatografia gasosa bidimensional abrangente acoplada a espectrometria de massa por tempo de voo). Por 1D-GC/qMS foram identificados tentativamente 51 compostos e, por CG×GC/TOFMS, 207 compostos. As classes identificadas em ambas as técnicas foram alcoóis, aldeídos, anidridos, cetonas, ésteres, éteres e fenóis. Entretanto, as classes de ácidos carboxílicos, hidrocarbonetos e derivados de açúcar foram identificadas apenas na CG×GC/TOFMS, que se mostrou a técnica mais eficiente para esse tipo de análise. Os fenóis foram os compostos majoritários, tendo-se obtido uma distribuição estruturada no espaço bidimensional, o que facilitou a separação/identificação de pelo menos três subclasses de fenóis: alquil monofenóis, alquil metóxi fenóis e alquil benzenodióis. A caracterização mostrou que o bio-óleo pode ser uma fonte potencial de matéria-prima para a indústria química. Palavras-chaveCaroços de pêssego; pirólise; cromatografia gasosa monodimensional; cromatografia gasosa bidimensional abrangente.Caracterization of phenols in bio-oil from the pyrolysis of peach core by GC/MS e GC×GC/TOFMS AbstractIn this paper it was analyzed the bio-oil produced by pyrolysis of peach endocarp using 1D-GC/qMS (onedimensional gas chromatography coupled to mass spectrometry) and GC×GC/TOFMS (comprehensive two dimensional gas chromatography coupled to time of flight mass spectrometry). Were tentatively identified 51 compounds by 1D-GC/qMS and 207 compounds by GC×GC/TOFMS. The chemical classes identified in both techniques were alcohols, aldehydes, anhydrides, ketones, esters, ethers and phenols. However, the class of carboxylic acids, hydrocarbons and sugar derivatives were identified only

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“…The pentane fraction was found rich in alkanes and alkenes, in the benzene fraction polycyclic aromatic hydrocarbons (PAHs) were abundant, many phenol derivatives and some oxygen containing compounds were detected in dichloromethane and ethyl acetate fractions, and in the methanol fraction some polar compounds like sugars were more concentrated. In Das's work [14], the bio-oil from pyrolysis of cashew nut shell was successively eluted by hexane/ethyl acetate mixtures and chloroform/methanol mixtures in different ratio with the packing material of silica gel, and five monocomponents in five fractions were obtained, and each component has the common unique head-and -tail like structure with the phenolic group being at the head and a long linear chain forming the tail. Rutkowski et al [15] separated a dehydrated bio-oil into fractions by eluting solvents of hexane, benzene, ether and methanol, with the packing material of neutral Al 2 O 3 .…”

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confidence: 99%

Component fractionation of wood-tar by column chromatography with the packing material of silica gel

et al. 2011

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Bio-oil can be an important fuel resource for automobiles in the future, while its complex composition restricts the direct application of the bio-oil extremely. So it is necessary to separate the complex mixture to relatively simplified fractions for goal directed specific treatments to reach the fuel quality for automobiles, and meanwhile different functional chemical materials and fine chemicals can be obtained. So it is significant to investigate the bio-oil component separating methods. Herein the method of column chromatography by the packing material of silica gel with two series of eluants of cyclohexane-benzene-methanol and cyclohexane-dichloromethane-methanol were investigated for component fractionation of the raw wood tar (oil fraction of the liquid product by slow pyrolysis of wood). The analytical results show that the components in cyclohexane are rich in alkoxyl-monophenols; the components of alkyl-monophenols and five ring oxygen-containing compounds are abundant in benzene and in dichloromethane similarly; in the methanol fraction, the components are diverse and diphenols are relatively in higher content, comparatively small polar molecules and five ring oxygen-containing compounds are more abundant in the methanol fraction after being eluted by dichloromethane, and the content of 1-(4-hydroxy-3-methoxyphenyl) -2-propanone is higher after being eluted by benzene. biomass, wood-tar, column chromatography Citation:Wang Z, Lin W G, Song W L, et al. Component fractionation of wood-tar by column chromatography with the packing material of silica gel.

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Bio oil from pyrolysis of cashew nut shell-characterisation and related properties

Cited by 161 publications

References 3 publications

Economic appraisal of supercritical fluid extraction of refined cashew nut shell liquid

Economic appraisal of supercritical fluid extraction of refined cashew nut shell liquid

Caracterizaçãodefenóisnobio-óleodapirólisedecaroço de pêssego por GC/MS e GC×GC/TOFMS

Component fractionation of wood-tar by column chromatography with the packing material of silica gel

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