Furfural - da biomassa ao laboratório de química orgânica

Ribeiro, Paulo Roberto; Carvalho, José Roque Mota; Geris, Regina; Queiroz, V. B. C. de; Fascio, Miguel

doi:10.1590/s0100-40422012000500033

Cited by 13 publications

(9 citation statements)

References 3 publications

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“…This heterocyclic and aromatic aldehyde, whose molecular formula is C 5 H 4 O 2 , is also known as 2-furancarboxyaldehyde, furaldehyde, 2-furanaldehyde, fural and furfuraldehyde [11] [13].…”

Section: Furfural Physical-chemical Propertiesmentioning

confidence: 99%

Literature Review on Furfural Production from Lignocellulosic Biomass

Machado¹,

Leon²,

Santos³

et al. 2016

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The use of renewable sources for obtainment of chemicals, biofuels, materials and energy has become each time larger due to environmental, political and economical problems of non-renewable energies utilization. Among several products that can be obtained from lignocellulosic biomass, which is a renewable source, there is furfural, a chemical from which many other value added chemical products can be obtained. The main route for furfural production consists of an acid hydrolysis of hemicelluloses present in lignocellulosic biomass to obtain xylose, which goes through a dehydration reaction to produce furfural. Due to the presence of an aldehyde group and a conjugated system of double bounds, furfural can go through several reactions, allowing the production of a range of value added products. In this sense, this article performs a review about mechanisms of furfural production from lignocellulosic biomass, highlighting its chemical properties which enable its utilization in different industrial applications of economic interest.

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Section: Furfural Physical-chemical Propertiesmentioning

confidence: 99%

Literature Review on Furfural Production from Lignocellulosic Biomass

Machado¹,

Leon²,

Santos³

et al. 2016

View full text Add to dashboard Cite

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“…Furfural (2-furaldehyde) is an important chemical solvent used in petroleum refining or as starting material for the preparation of other organic solvents such as furfural alcohol and tetrahydrofuran. The furfural derivatives also have a high demand for using in the plastic, herbicides, food, pharmaceutical and agricultural industries (Dias et al, 2006(Dias et al, , 2007Ribeiro et al, 2012). Furfural was included among the top 30 added-value chemicals from biomass (Werpy et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Sustainable production of furfural and 5-hidroximetilfurfural from rice husks and soybean peel by using ionic liquid

et al. 2020

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On the current search for renewable energy sources, residual biomass has been highlighted as a potential source of chemical compounds that are currently obtained from petroleum. Among the derivatives obtained from this, 5-hydroxymethylfurfural and furfural are considered key parts in this process as they are key compounds in the fine chemical industry. This work aims at the use of the rice husks and soybean peel for the synthesis of 5-hydroxymethylfurfural and furfural using the ionic liquid [BMOM][Br]. The physical pre-treatment of biomasses was carried out followed by acid hydrolysis. For the synthesis of the furanic compounds, different temperatures and reaction times were used. The products obtained in each step were analyzed by infrared spectrophotometry and by high performance liquid chromatography. The best yields for rice husks was obtained with 4 hours of reaction at 120 °C (34%) and for soy peel with 3 hours of reaction at 120 °C (59%), for furfural production. For 5-hydroxymethylfurfural production the yields were 8.7% and 3.4% for rice and soy husks, respectively. Ot was found that glucose was the main group related to bio-products obtaining.

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“…De acordo com Ribeiro et al (2012) [6], o termo biomassa é empregado para descrever a matéria orgânica dos organismos, na qual a de origem vegetal é produzida via fotossíntese, mecanismo em que o gás carbônico (CO 2 ) é convertido em açúcares, os quais, posteriormente, são convertidos nos polímeros estruturais amido, celulose, hemicelulose e lignina [7]. Quando as ligações entre moléculas de carbono, hidrogênio e oxigênio são quebradas por combustão, digestão, ou decomposição, estes compostos liberam sua energia química armazenada [8][9][10][11] e desta forma, a energia presente na biomassa pode ser transformada em combustíveis líquidos, sólidos e gasosos, por meio de processos de conversão físicos, químicos e biológicos.…”

Section: Introductionunclassified

Blendas de bagaço de cana-de-açúcar, podas de mangueira e cajueiro: caracterização das propriedades e investigação de seus potenciais energéticos

et al. 2019

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RESUMOO trabalho apresenta o potencial energético de blendas de bagaço de cana-de-açúcar e podas de mangueira e cajueiro. As amostras foram caracterizadas por meio da determinação do poder calorífico superior, densidade, análise imediata (umidade, cinzas, matéria volátil e carbono fixo), análise elementar e termogravimetria. As misturas foram preparadas com diferentes frações em massa. Após avaliação qualitativa e quantitativa das amostras verificou-se quais blendas apresentaram os melhores resultados e, em seguida, os briquetes foram produzidos. As misturas de bagaço de cana:poda de mangueira (frações 50%: 50%), bagaço de cana:poda de cajueiro (frações 50%: 50%) e bagaço de cana:poda de cajueiro:poda de mangueira (frações 50%: 25%: 25%) foram utilizadas na produção dos briquetes. A última parte do trabalho apresenta a diferença entre o potencial energético dos briquetes e do bagaço de cana. A densidade energética dos briquetes de bagaço de cana-deaçúcar e poda de mangueira aumentou de 1,79 para 13,55 (kJ cm-3), em relação ao material não compactado. Os briquetes com poda de cajueiro variaram de 1,97 a 12,75 (kJ cm-3) e os briquetes de bagaço de cana:poda de cajueiro:poda de mangueira variaram de 2,46 a 12,18 (kJ cm-3). O briquete de bagaço de cana apresentou variação de 1,25 para 13,22 (kJ cm-3). A investigação do potencial energético de bioprodutos agrícolas (podas de mangueira e cajueiro) em mistura com bagaço de cana-de-açúcar, apresenta à indústria sucroalcooleira uma nova possibilidade de reutilização de resíduos de biomassa para obtenção de energia. Palavras-chave:Sustentabilidade; Biomassa; Briquetes; Poda de mangueira; Poda de cajueiro. ABSTRACTThe work shows the energy potential of blends of sugarcane bagasse with the mango tree and cashew tree's pruning. The samples were characterized by gross calorific value, density, proximate analysis (moisture, ash, volatile matter and fixed carbon), elemental analysis and thermogravimetry. The blends were prepared with different mass fractions. After evaluation of the samples qualitative and quantitative analyses, it was verified which blends showed the better results and then the briquettes were prepared. The blends of sugarcane bagasse:mango tree pruning (fractions 50%:50%), sugarcane bagasse:cashew tree pruning (fractions

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Furfural - da biomassa ao laboratório de química orgânica

Cited by 13 publications

References 3 publications

Literature Review on Furfural Production from Lignocellulosic Biomass

Literature Review on Furfural Production from Lignocellulosic Biomass

Sustainable production of furfural and 5-hidroximetilfurfural from rice husks and soybean peel by using ionic liquid

Blendas de bagaço de cana-de-açúcar, podas de mangueira e cajueiro: caracterização das propriedades e investigação de seus potenciais energéticos

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