Towards the conversion of carbohydrate biomass feedstocks to biofuels via hydroxylmethylfurfural

James, Olusola O.; Maity, Sudip; Usman, L. A.; Ajanaku, K. O.; Ajani, Olayinka O.; Siyanbola, T. O.; Sahu, Satanand; Chaubey, Rashmi

doi:10.1039/b925869h

Cited by 184 publications

(115 citation statements)

References 73 publications

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“…50%. 1,4 The expected continuous increase in the demand for furfural, 6 however, requires the development of more efficient, economical and environmentally friendly routes to ensure the sustainability of furfural-related industries. Therefore, different approaches have been investigated in order to improve the production processes.…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted coating of carbon nanostructures with titanium dioxide for the catalytic dehydration of d-xylose into furfural

et al. 2013

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a Titanium dioxide was selectively grown on reduced graphene oxide (TiO 2 /RGO) and carbon black (TiO 2 / CB) by a microwave assisted synthesis in benzyl alcohol to produce nanocomposite catalysts (consisting of 8 9 nm anatase nanoparticles dispersed on the carbon surface) with interesting properties for the production of furfural from renewable carbohydrate biomass. The materials efficiently catalyze the aqueous phase dehydration of xylose into furfural at 170 uC with high furfural yields (67 69%) at high conversions (95 97%). The catalytic performance was not significantly affected by the type of carbon support, suggesting that cheap amorphous carbons can be used to support the titania nanoparticles.Additionally, the catalysts were found to be stable under hydrothermal conditions and outstandingly stable towards coke formation in comparison to other solid acid catalysts reported in the literature. Both composites were reused after a simple wash and drying procedure without any detectable loss of catalytic activity in consecutive batch runs.

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Section: Introductionmentioning

confidence: 99%

Microwave-assisted coating of carbon nanostructures with titanium dioxide for the catalytic dehydration of d-xylose into furfural

et al. 2013

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“…Outside food technology, HMF is known as a compound in the scope of interest of chemical industry, among other things due to the numerous possibilities for its use in macromolecular compounds synthesis (Román-Leshkov et al 2006;James et al 2010).…”

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confidence: 99%

Dynamics of 5-hydroxymethylfurfural formation in shortbreads during thermal processing

Kowalski¹,

Łukasiewicz²,

Juszczak³

et al. 2013

Czech J. Food Sci.

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Kowalski S., Lukasiewicz M., Juszczak L., Kutyła-Kupidura E.M. (2013): Dynamics of 5-hydroxymethylfurfural formation in shortbreads during thermal processing. Czech J. Food Sci., 31: 33-42.The analysis was carried out of 5-hydroxymethyl-2-furfural (HMF) formation during the baking of shortbreads. The investigation was done on three types of shortbread in which sucrose, glucose, or fructose were used as sweeteners. In all the samples the concentration of sugar was 20% (w/w). The cookies were baked in a laboratory oven at temperatures of 200, 215, 230, and 245°C. The samples for the HMF determination were taken at intervals from 5 to 18 min depending on the baking temperature. It was found that HMF formation can be described by exponential equation. The HMF formation was correlated with the colour changes of the cakes determined according to CIELab system. Different parameters of colour were investigated, however, only in the case of brightness difference may the correlation be treated as statistically important.

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“…Eles podem ser obtidos de muitas biomassas renováveis baseadas em carboidratos como lignoceluloses, por exemplo. 74 Apesar dessas duas substâncias não estarem entre os blocos sintéticos de construção de moléculas e produtos substitutos do petróleo, 75 eles apresentam grande utilidade. Esses derivados são intermediários potencialmente importantes do ponto de vista industrial e que podem ser produzidos em larga escala.…”

Section: Discussionunclassified

Carboidratos como fonte de compostos para a indústria de química fina

Ferreira¹,

Silva²,

Ferreira³

2013

Quím. Nova

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Recebido em 4/7/13; aceito em 10/10/13; publicado na web em 24/10/13 CARBOHYDRATES AS A SOURCE OF COMPOUNDS FOR FINE CHEMICAL INDUSTRY. Coal, oil, natural gas, and shale gas are biomass that is formed millions of years ago. These are non-renewable and depleting, even considering the recent discovery of new sources of oil in the presalt and new technologies for the exploitation of shale deposits. Currently, these raw materials are used as a source of energy production and are also important for the production of fine chemicals. Since these materials are finite and their (oil) price is increasing, it is clear that there will be a progressive increase in the chemical industry to use renewable raw materials as a source of energy, an inevitable necessity for humanity. The major challenge for the society in the twenty first century is to unite governments, universities, research centers, and corporations to jointly act in all areas of science with one goal of finding a solution to global problems, such as conversion of biomass into compounds for the fine chemical industry.Non-renewable raw materials are used in the preparation of fuels, chemical intermediates, and derivatives for the fine chemical industry. However, their stock in nature has a finite duration, and their price is high and will likely increase with their depletion. In this scenario, the alternative is to use renewable biomass as a replacement for petrochemicals in the production of fine chemicals. As the production of biomass-based carbohydrates is the most abundant in nature, it is judicious to develop technologies for the generation of chain products (fuels, chemical intermediates, and derivatives for the fine chemicals industry) using this raw material. This paper presents some aspects and opportunities in the area of carbohydrate chemistry toward the generation of compounds for the fine chemical industry.Keywords: fine chemicals; chains fine chemical from carbohydrates; renewable biomasses. INTRODUÇÃOA compreensão humana sobre a natureza e a vida é baseada em nosso conhecimento da química, pois, em realidade, todos os processos da vida são controlados por reações químicas.Há vários problemas globais 1,2 em que a química pode ser o elemento chave de sua solução e, desta forma, promover o avanço social e econômico dos países em um mundo sem fronteiras. A saber: 1. biodiversidade e conversão de biomassa em matérias-primas; 2. fontes alternativas de energia limpa e renovável; 3. produção sustentável de fármacos; 4. a produtividade agrícola para alimentar o crescimento populacional; 5. qualidade da água para uso humano; 6. materiais reclicáveis e pouco persistentes; 7. nível dióxido de carbono e seu aproveitamento; 8. risco de desaparecimento de alguns elementos químicos por dispersão; 9. nanotecnologia e nanotoxicologia; 10. educação em todos níveis e em especial em química e; 11. responsabilidade social da química.O grande desafio da sociedade no século XXI é unir governos, universidades, centros de pesquisa e corporações para que atuem conjuntamente e...

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Towards the conversion of carbohydrate biomass feedstocks to biofuels via hydroxylmethylfurfural

Cited by 184 publications

References 73 publications

Microwave-assisted coating of carbon nanostructures with titanium dioxide for the catalytic dehydration of d-xylose into furfural

Microwave-assisted coating of carbon nanostructures with titanium dioxide for the catalytic dehydration of d-xylose into furfural

Dynamics of 5-hydroxymethylfurfural formation in shortbreads during thermal processing

Carboidratos como fonte de compostos para a indústria de química fina

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