Synthesis, characterization and evaluation of niobium catalysts in the flash pyrolysis of glycerol

Batista, Luana Márcia Bezerra; Oliveira, João Leonardo Freitas; Bezerra, Franciel Aureliano; Araújo, Aruzza Mabel de Morais; Fernandes, Valter J.; Araújo, Antônio S.; Alves, Ana Paula M.; Gondim, Amanda Duarte

doi:10.1016/j.solidstatesciences.2019.105977

Cited by 8 publications

(4 citation statements)

References 39 publications

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“…Therefore, the main products of glycerol pyrolysis are organic liquids, gases, and char. In order to promote the organic liquid yield (rich in products such as acetals, ketals, glycerol esters, and acrylic acids, among others), fast pyrolysis can represent an alternative (see Table 1, references [53,54]). Table 1 shows some specific catalysts that have recently been used in glycerol pyrolysis for different purposes, including the main details of each work.…”

Section: Pyrolysismentioning

confidence: 99%

Recent Advances in Glycerol Catalytic Valorization: A Review

et al. 2020

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Once a biorefinery is ready to operate, the main processed materials need to be completely evaluated in terms of many different factors, including disposal regulations, technological limitations of installation, the market, and other societal considerations. In biorefinery, glycerol is the main by-product, representing around 10% of biodiesel production. In the last few decades, the large-scale production of biodiesel and glycerol has promoted research on a wide range of strategies in an attempt to valorize this by-product, with its transformation into added value chemicals being the strategy that exhibits the most promising route. Among them, C3 compounds obtained from routes such as hydrogenation, oxidation, esterification, etc. represent an alternative to petroleum-based routes for chemicals such as acrolein, propanediols, or carboxylic acids of interest for the polymer industry. Another widely studied and developed strategy includes processes such as reforming or pyrolysis for energy, clean fuels, and materials such as activated carbon. This review covers recent advances in catalysts used in the most promising strategies considering both chemicals and energy or fuel obtention. Due to the large variety in biorefinery industries, several potential emergent valorization routes are briefly summarized.

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Section: Pyrolysismentioning

confidence: 99%

Recent Advances in Glycerol Catalytic Valorization: A Review

et al. 2020

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“…Achieving efficient and reasonable conversion of glycerol is an important guarantee for biodiesel industry. Glycerol can be converted through various reaction pathways such as oxidation, hydrogenolysis [3], dehydration [4], esterification [5], etherification [6], pyrolysis [7] and carboxylation [8]. Particularly, oxidation is an advantageous way to convert glycerol into value-added products such as 1,3-dihydroxyacetone (DHA), glycerol acid, lactic acid, oxalic acid and acetic acid [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of Au/CuO catalyst with Syringa oblata Lindl. leaf extract for efficient selective oxidation of glycerol to 1,3-dihydroxyacetone

et al. 2023

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Efficient conversion of glycerol to 1,3-dihydroxyacetone (DHA) is the affirmation and guarantee of the feasible development of biodiesel industry, but the biocompatibility of catalyst must be considered due to the wide application of DHA in food and medicine industries. In this work, an environmentally benign biosynthesis approach with Syringa oblata Lindl. (SoL) leaf extract was employed to fabricate Au/CuO catalysts for the oxidation of glycerol to DHA. The biosynthesized SoL-Au/CuO catalysts were characterized and the effects of plant extracts concentration, gold loading, calcination temperature and reaction conditions on the catalytic performance were systematically analyzed. High catalytic performance with glycerol conversion rate of 95.7% and DHA selectivity of 77.9% can be attained under optimum conditions. This work provides the first example of preparing biocompatible catalyst for the thermal catalytic oxidation of glycerol to DHA, which can not only reach efficient conversion of glycerol and selectivity to DHA, but also is simple, green, environmentally friendly and promising.

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“…O óxido de nióbio é utilizado para várias reações, como hidratação, desidratação, esterificação, condensação, entre outros (REGUERA et al, 2004). No entanto, existem poucos relatos na literatura a respeito do uso de catalisadores à base de nióbio no processo de pirólise para a produção de biocombustíveis (BATISTA et al, 2019;SIMÃO et al, 2018).…”

Section: Introductionunclassified

Prospecção Tecnológica de Patentes a Respeito da Produção de Diesel Verde a partir de Microalgas com Catalisadores de Nióbio por Pirólise Rápida

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Mascarenhas

Gonçalves

et al. 2021

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<p dir="ltr"><span>Nos dias de hoje, as microalgas vêm sendo investigadas como fonte de matéria-prima para produzir biocombustíveis devido à sua alta produtividade, ao elevado teor lipídico e à capacidade de crescer em uma grande variedade de climas e de espaços, sem competir com a produção de alimentos. Este trabalho tem como finalidade identificar as patentes referentes à produção de diesel verde a partir de microalgas, empregando catalisadores de nióbio no processo de pirólise. Para isso, foi realizada uma pesquisa nos bancos de dados Espacenet e Instituto Nacional da Propriedade Industrial (INPI), por meio de códigos indexados na Classificação Internacional de Patentes (CIP). Os resultados mostram que não foram encontradas tecnologias usando pirólise rápida e catalisadores de nióbio para transformar os lipídios de microalgas em combustíveis verdes, o que pode justificar a necessidade de um estudo na área.</span></p><div><span><br /></span></div>

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Synthesis, characterization and evaluation of niobium catalysts in the flash pyrolysis of glycerol

Cited by 8 publications

References 39 publications

Recent Advances in Glycerol Catalytic Valorization: A Review

Recent Advances in Glycerol Catalytic Valorization: A Review

Biosynthesis of Au/CuO catalyst with Syringa oblata Lindl. leaf extract for efficient selective oxidation of glycerol to 1,3-dihydroxyacetone

Prospecção Tecnológica de Patentes a Respeito da Produção de Diesel Verde a partir de Microalgas com Catalisadores de Nióbio por Pirólise Rápida

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