Liquid phase reforming of rice straw for furfural production

Lin, Kuo-Hsin; Huang, Ming-Hsiang; Chang, Alex C.-C.

doi:10.1016/j.ijhydene.2013.06.088

Cited by 12 publications

(3 citation statements)

References 24 publications

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“…The authors also observed that biomass-derived xylose reacted faster than crystalline xylose, which has also been observed by other authors. 125 This enhanced activity could be due to the presence of organic acids, such as formic or acetic acid, which can help catalyze the reaction. However, such acids tend to be less selective than strong acids and could contribute to the lower yields observed when using lignocellulosic biomass.…”

Section: Furans and Their Derivativesmentioning

confidence: 99%

Targeted chemical upgrading of lignocellulosic biomass to platform molecules

2014

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This review presents an overview of the initial targeted chemical processing stages for conversion of lignocellulosic biomass to platform molecules that serve as intermediates for the production of carbonbased fuels and chemicals. We identify four classes of platform molecules that can be obtained in an initial chemical processing step: (i) sugars, (ii) dehydration products, (iii) polyols and (iv) lignin monomers. Special emphasis is placed on reporting and comparing parameters that affect process economics and/or sustainability, including product yields, amount of catalyst used, processing conditions, and product concentrations. We discuss the economic trade-offs associated with choices related to these parameters, depending on the product that is targeted. We also address the effects of real biomass on the ability to recover, recycle, and potentially regenerate catalysts and solvents used in the biomass conversion processes.

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Section: Furans and Their Derivativesmentioning

confidence: 99%

Targeted chemical upgrading of lignocellulosic biomass to platform molecules

2014

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“…A study revealed that OPF with high hemicellulose content (40.4%) was crucial for furfural production due to its production from xylose units of xylan in hemicellulose. The production of furfural from OPF by using supercritical ethanol with formic acid as a catalyst was successful and reported to give the highest yield of 35% [72] compared to other commercial and conventional methods such as high-temperature diluted-acid hydrolysis [73] and high-temperature sequential hydrolysis using acid, ethanol, and water [74]. The yield was enhanced by higher reaction temperature and acid concentration, as well as a low amount of solid loading.…”

Section: Supercritical Fluid Extraction (Ethanol) Of Furfuralmentioning

confidence: 99%

Transformation of Oil Palm Biomass into Value-Added Components

Hau

Teh

Yeo

et al. 2022

RAS

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Oil palm is currently the world's leading vegetable oil crop, with Indonesia and Malaysia as the two largest producers and exporters of palm oil in the world. In order to meet the demand for palm oil, the mills generate huge quantities of by-products causing an alarming concern on environmental impact. Hence, the effort to transform "waste to gold" is very crucial. This review focused on the extraction methods for holocellulose and lignin, as well as processing methods to produce value-added components such as nanoparticles, fermentable sugar, bioethanol, biochemicals, biofuel and phenolic compounds because the oil palm biomass (OPB) generated contain high amounts of nutritional or bioactive components. Processes such as chemical extractions, enzymatic hydrolysis, microorganism fermentation, organic solvent extractions and green extraction technology using deep eutectic solvents, protic ionic liquid, and supercritical fluid, were used to transform OPB into value-added bio-products for various industries especially food, agricultural, and pharmaceutical industries. Chemical extraction was crucial to extract cellulose and hemicellulose from the lignocellulosic material of OPB prior to other processing methods to produce a variety of valuable components. Sequential mild chemical extraction, cellulase cocktail hydrolysis, supercritical carbon dioxide extraction and ethanol extraction successfully extracted OPB value-added components with improved physical and chemical properties.

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“…De acordo com Hongzhang, Bin, e Shengying (2011) que estudaram a produção de ácido levulínico a partir da palha de arroz, após pré-tratamento de explosão a vapor e utilizando catalisador superácido sólido obtendo produtividade de 70,00%. A produção de outros produtos tais como biohidrogênico -para utilização como biocombustível; celulases, hemicelulases, lacases -para hidrólise de celulose, hemiceluloses e lignina respectivamente; xilitol -agente adoçante; furfural -produção de fármacos, pesticidas e aditivos, entre outros produtos de alto valor agregado vem sendo investigada a partir da casca e palha de arroz, estudando o potencial de utilização desses resíduos e buscando aprimorar os processos para obter maior produtividade (HE et al, 2014, HIDENO et al, 2011OKAMOTO et al, 2011;SOUSA-AGUIAR et al, 2014;LIN;HUANG;CHANG, 2013).…”

Section: Arrozunclassified

Cenários E Perspectivas Das Principais Culturas Do Rio Grande Do Sul Em Processos De Biorrefinaria

Faria

Machado

Eichler

et al. 2016

R. Eletr. Cient. da Uergs

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Resumo- o grande desafio da civilização moderna é se tornar uma sociedade mais sustentável, baseada no uso racional dos recursos naturais. Nesse contexto, surgiu o conceito de biorrefinaria, que prevê a conversão da biomassa em biocombustíveis, biomateriais, bioquímicos e bioenergia com baixo desperdício e mínimas emissões. No que diz respeito à produção de biomassas, o Brasil é considerado uma referência mundial pela sua avançada tecnologia agrícola e florestal, vasta disponibilidade de terra arável e condições edafoclimáticas favoráveis em comparação com outras partes do mundo. Nesse cenário, o estado do Rio Grande do Sul é considerado um grande centro para o desenvolvimento, aperfeiçoamento e implementação de tecnologias que visem converter a biomassa lignocelulósica em produtos através da biorrefinaria. Nessa expectativa, o aproveitamento dos resíduos provenientes das culturas de eucalipto, tabaco, milho, uva, soja e arroz que hoje em dia são gerados em quantidades significativas, devem aumentar consideravelmente nos próximos anos, transformando-os de fontes de custos para fontes de receitas. Neste contexto, o objetivo do presente trabalho foi fazer uma revisão do potencial energético e químico das principais culturas do Rio Grande do Sul e sua utilização através dos processos químicos, bioquímicos e termoquímicos.

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Liquid phase reforming of rice straw for furfural production

Cited by 12 publications

References 24 publications

Targeted chemical upgrading of lignocellulosic biomass to platform molecules

Targeted chemical upgrading of lignocellulosic biomass to platform molecules

Transformation of Oil Palm Biomass into Value-Added Components

Cenários E Perspectivas Das Principais Culturas Do Rio Grande Do Sul Em Processos De Biorrefinaria

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