C.M. Kellerman, Stuart W. Sinclair, Malcolm F. Lowe, Desmond Stewart, Peter Morrell, John Lewis, J.K. Thomson, Bartle Sawbridge, George Price, Bulbul Sen,
... International Flying Dutchmen European Options Exchange The Kenya Furfural Company Ltd International Combustion Australia Ltd The Economist ...
1977 - Gale Group | The Economist
Zahra Khounani, Normy Norfiza Abdul Razak, Homa Hosseinzadeh-Bandbafha, Meysam Madadi, Fubao Sun, I.M. Rizwanul Fattah, Keikhosro Karimi, Vijai Kumar Gupta, Mortaza Aghbashlo, Meisam Tabatabaei,
Furfural is a versatile chemical building block derived from hemicellulose-rich lignocellulosic biomass. Considering the availability of ... most environmentally sustainable production routes and conditions for furfural production. This study evaluates the life cycle environmental impacts of furfural production in a poplar wood-based biorefinery, considering ... with a functional unit of 1 kg of furfural production. The environmental impacts of furfural production are evaluated using the IMPACT World+ method ...
Tópico(s): Environmental Impact and Sustainability
2023 - Elsevier BV | Industrial Crops and Products
Di Chen, Bin Wang, Xin-Li Xu, Xin-Miao Bu, Manyu Zhang, Xia Xu, Yu Lei, Nian Shi,
Furfurals (5-hydroxymethylfurfural, furfural and 5-methyl furfural) have potential toxic effects to humans. This study developed a simple and rapid one-pot derivatization/extraction procedure for effective sample preparation of furfurals in complex samples prior to instrument analysis. The ... vial for 3 min. During this process, the furfurals were effectively derivatized by PBH and the furfural-PBH derivatives were selectively captured by MWCNTs-OH ... following liquid chromatography-tandem mass spectrometry analysis. Quantifying furfurals was validated over the 0.5-500 ng/ ...
Tópico(s): Analytical Chemistry and Chromatography
2023 - Elsevier BV | Food Chemistry
Wen Cao, Wei Xuan, Youmin Jiang, Jiali Feng, Zixuan Gao, Canfang Tang,
Furfural, as a typical byproduct produced during the hydrolysis of lignocellulose biomass, is harmful to the photo ... hydrogen production. In this work, the effects of furfural on the photo fermentation hydrogen production by Rhodobacter ... products with the addition of different concentrations of furfural (0–20 mM) were studied. The results showed that furfural negatively affected the maximum hydrogen production rate and ... 13 mol-H2/mol-glucose was obtained without furfural. However, 5 mM furfural showed a 40% increase ...
Tópico(s): Microbial Fuel Cells and Bioremediation
2022 - Multidisciplinary Digital Publishing Institute | Catalysts
Peyman Pourali, Mehdi Fazlzadeh, Morteza Aaligadri, Abdollah Dargahi, Yousef Poureshgh, Babak Kakavandi,
Furfural is as one of the major environmental pollutants in different industrial effluents such as refinery and ... Fe3O4 (Fe3O4@GAC) particle electrodes for removal of furfural from aqueous solution. The particle electrodes structural and ... factors including reaction time, pH, voltage and initial furfural concentrations at five levels were evaluated. The Quadratic ... data analysis. The performance of electrochemical oxidation towards furfural degradation was enhanced substantially after adding Fe3O4@GAC. ...
Tópico(s): Catalytic Processes in Materials Science
2022 - Elsevier BV | Arabian Journal of Chemistry
... a universal method for the co-production of furfural and hydrogen from raw lignocellulosic biomass, three types ... chemical and electrochemical technologies. The results show both furfural and pure hydrogen were produced from all the ... substrate type, composition, concentration, and size all affected furfural and hydrogen production. The highest furfural production of 154 mg g−1 substrate was ... highest conversion rate of 67% for the waste furfural residue was realized, and 335 ml pure hydrogen per gram of furfural residue with a Faradaic efficiency of 99.3% ...
Tópico(s): Catalysis and Hydrodesulfurization Studies
2022 - Elsevier BV | Bioresource Technology Reports
Produção Nacional
Revisado por pares
Gustavo Gomes, Eupídio Scopel, Márcia Cristina Breitkreitz, Camila A. Rezende, Julio Cezar Pastre,
In this work, a green method to produce furfural from sugarcane bagasse (SCB) acid hydrolysates is proposed ... extraction solvent) to avoid side reactions and optimize furfural yields. The process was carried out in two steps: (i) SCB acid hydrolysis and (ii) furfural production from the acid hydrolysates. The best conditions ... valorization as a co-product. Optimized conditions for furfural production using xylose as the sugar source (180 ° ... factorial design and resulted in 87 ± 2% of furfural yield. According to the Design of Experiments (DoE), ...
Tópico(s): Advanced Cellulose Research Studies
2022 - Elsevier BV | Industrial Crops and Products
Muhammad Ashraf Sabri, G. Bharath, Abdul Hai, Mohammad Abu Haija, R.P. Nogueira, Fawzi Banat,
... scalable electrochemical processes have been developed to convert furfural into fuels. The conversion of furfural requires electrode materials that are cost-effective and ... simultaneous electrochemical hydrogenation (ECH) and oxidation (ECO) of furfural to fuels and value-added chemicals. An N- ... the electrode resistivity, and the electrocatalytic activity of furfural through ECO and ECH. In particular, N-MoCo/ ... used to tune the ECH and ECO of furfural and the yields and selectivity of the resulting ... C led to the most efficient conversion of furfural to furoic acid through ECO and furfural alcohol ...
Tópico(s): Catalysis and Hydrodesulfurization Studies
2022 - Elsevier BV | Fuel Processing Technology
Khai Jie Yong, Ta Yeong Wu, Cornelius Basil Tien Loong Lee, Zhi Jin Lee, Qinpu Liu, Jamaliah Md Jahim, Qiaoqiao Zhou, Lian Zhang,
... is an ideal source of carbohydrates to produce furfural commercially. Furfural is recognized as a versatile platform chemical with ... critical analysis of the recent progress of industrial furfural production from lignocellulosic biomass worldwide. Although old-fashioned ... utilize other lignocellulosic components, including cellulose and lignin. Furfural forms the natural precursor for many furan-based ... are the most commonly used raw materials by furfural manufacturing companies on a commercial scale. Furfural market ...
Tópico(s): Microbial Metabolic Engineering and Bioproduction
2022 - Elsevier BV | Biomass and Bioenergy
Huimei Huang, Jiebo Chen, Mingfeng Zheng, Lulu Zhang, Hongfei Ji, Huajin Cao, Fengxia Dai, Lu Wang,
As a potent aromatic compound, furfural may have adverse effects on sugarcane juice quality. In this study, simplified sugarcane juice models containing glucose, fructose and amino acids ... explore the potential precursors and formation pathways of furfural. The changes of precursors and intermediates involved in furfural formation were quantified. The results indicated that fructose contributed more to furfural formation than glucose. Serine was the main amino acid precursor for furfural formation. Furfural could be generated through 3 pathways ...
Tópico(s): Natural Products and Biological Research
2022 - Elsevier BV | Food Chemistry
Heng Zhang, Chuying Liu, Enze Zhang, Xianhao Fan, Yiyi Zhang, Qiang Fu, Ji Liu, Jiefeng Liu, Thomas Wu,
Furfural content dissolved in transformer oil is affected by the furfural diffusion in oil–paper insulation. Previous studies focused on the effects of temperature and moisture on furfural diffusion, while the effect of formic acid on furfural is ignored. Given this, the effect of formic acid on the diffusion properties of furfural is studied in this work through molecular dynamics simulations and macroscopic experiments. First, oil-cellulose-furfural molecular models with different formic acid mass fractions ...
Tópico(s): High voltage insulation and dielectric phenomena
2022 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Dielectrics and Electrical Insulation
Elsa Cousin, Kritsana Namhaed, Yolande Pérès, Patrick Cognet, Michel Delmas, Heri Hermansyah, Misri Gozan, Peter Adeniyi Alaba, Mohamed Kheireddine Aroua,
As mentioned in several recent reviews, biomass-based furfural is attracting increasing interest as a feasible alternative ... review describes the chemical and biological routes for furfural production. The mechanisms proposed for the chemical transformation of xylose to furfural are detailed, as are the current advances in the manufacture of furfural from biomass. The main goal is to overview the different ways of improving the furfural synthesis process. A pretreatment process, particularly chemical and ...
Tópico(s): Supercapacitor Materials and Fabrication
2022 - Elsevier BV | The Science of The Total Environment
Zhaoxing Wang, Souryadeep Bhattacharyya, Dionisios G. Vlachos,
... silico and experimental study on the extraction of furfural and 5-hydroxymethylfurfural (HMF) in aqueous–organic biphasic systems. We predict the liquid–liquid equilibria and furfural/HMF partition coefficients of over 2200 water-organic ... COSMO-RS model and measure experimentally single-component (furfural) and mixture (furfural and HMF) partition coefficients at room and dehydration ... 2 from the COSMO-RS predictions. Even though furfural and HMF have chemical similarity, the slight differences in molecular structure render the separation of furfural easier by the supply of more solvents of ...
Tópico(s): Biofuel production and bioconversion
2021 - American Chemical Society | ACS Sustainable Chemistry & Engineering
Soumya Ghosh, Omar Falyouna, Alhadji Malloum, Amina Othmani, Charné Bornman, Heba Bedair, Helen Onyeaka, Zainab T. Al‐Sharify, Ajala Oluwaseun Jacob, Taghi Miri, Christian Osagie, Shahin Ahmadi,
Furfural contamination of water is a serious problem in the world. The review article highlights on furfural ecotoxicology and the associated molecular mechanisms involved in ... efficacy of novel adsorbents for the removal of furfural from polluted water, adsorption capacities of adsorbents under ... applicable isotherm models, characterization and percentage removal of furfural. It was showed from the review that CTAB- ... is the best adsorbents for the removal of furfural (qmax = 538 mg/g) from aqueous media.A ...
Tópico(s): Ionic liquids properties and applications
2021 - Elsevier BV | Microporous and Mesoporous Materials
Rhulani N. Ntimbani, Somayeh Farzad, Johann F. Görgens,
Co-production of furfural and ethanol from mixture of sugarcane bagasse and harvest residues in a biorefinery annexed to a sugar mill was ... The study considered energy self-sufficient scenarios producing furfural-only (scenario 1), ethanol-only (scenario 2) and integrated furfural-ethanol co-production at a range of operating ... 7). Scenario 1 was based on the industrial furfural process conditions (180 °C), which was replaced with ... 205 °C in the ethanol-only Scenario 2. Furfural process conditions of Scenarios 3,4 and 6 ...
Tópico(s): Supercapacitor Materials and Fabrication
2021 - Elsevier BV | Industrial Crops and Products
Heng Mao, Shen-Hui Li, Ao‐Shuai Zhang, Li‐Hao Xu, Heng-Xing Lu, Jing Lv, Zhi-Ping Zhao,
Furfural is a typical biomass-derived platform chemical. Conventional processes for furfural production are uneconomical and energy-intensive because only about 3–6 wt% of furfural in the hydrolysate needs to be separated. In ... amide) (PEBA 2533) matrix for pervaporation separation of furfural from aqueous solutions. The MAPs with anisotropic morphology ... MAPs notably reduced the permeation energy barrier for furfural, but not for water. The coin-like MAPs- ... presented the optimal separation performance, which exceeded other furfural-permselective membranes. Impressively, a high total flux of ...
Tópico(s): Membrane-based Ion Separation Techniques
2021 - Elsevier BV | Separation and Purification Technology
Andrés Cañada-Barcala, Diego Rodríguez-Llorente, Laura López, Pablo Navarro, Elisa Hernández, V. Ismael Águeda, Silvia Álvarez-Torrellas, Juan Carlos Parajó, Sandra Rivas, Marcos Larriba,
Furfural comes from lignocellulosic biomass that, together with its derived products, has many useful applications in several industries. Furfural is usually obtained via pentose dehydration using a biphasic reactor to extract furfural in situ from its reaction medium. However, the ... method to select solvents with high affinity to furfural. From the results obtained in the screening, 14 ... by thymol. Then, the liquid–liquid extraction of furfural was carried out both in vials and in ... the usual temperature and pH conditions for obtaining furfural. Thymol and eugenol showed extraction yields of 95 ...
Tópico(s): Supercapacitor Materials and Fabrication
2021 - American Chemical Society | ACS Sustainable Chemistry & Engineering
Syed Bilal Jilani, Rajendra Prasad, Syed Shams Yazdani,
Furfural is a common furan inhibitor formed due to dehydration of pentose sugars, like xylose, and acts ... strategy in the past in conferring tolerance against furfural in Escherichia coli, which highlights the importance of oxidoreductases in conferring tolerance against furfural. In a screen consisting of various oxidoreductases, dehydrogenases, ... as an overexpression target to confer tolerance against furfural. YghA preferably used NADH as a cofactor and ... apparent Km value of 0.03 mM against furfural. In the presence of 1 g liter-1 ...
Tópico(s): Catalysis for Biomass Conversion
2021 - American Society for Microbiology | Applied and Environmental Microbiology
Weronika Filipowska, Barbara Jaskula‐Goiris, Maciej Ditrych, Paula Bustillo Trueba, Gert De Rouck, Guido Aerts, Chris Powell, David J. Cook, Luc De Cooman,
... most frequently reported are hexanal, trans-2-nonenal, furfural, 2-methylpropanal, 2-methylbutanal, 3-methylbutanal, methional and ... carboxylic acid hexanal 2-pentylthiazolidine-4-carboxylic acid furfural 2-(furan-2-yl) thiazolidine-4-carboxylic acid ... 28°C). The authors determined lower levels of furfural and 5-hydroxymethyl furfural (5-HMF) in beers with the addition of ... that Maillard reactions resulting in the formation of furfural, occur to some extent during forced ageing of ... leading to de novo formation of e.g. furfural are favoured at conditions where pH is higher ...
Tópico(s): Horticultural and Viticultural Research
2021 - Wiley | Journal of the Institute of Brewing
Zhengchao Shen, Xin Ma, Muhammad Mujahid Ali, Jiang Liang, Zhenxia Du,
Furfural compounds are produced during infant formula production when heat treatment is involved. In this study, a ... method was established for determining potential and free furfural compounds (furfural, 5-methyl-2-furfural, 2-acetylfuran and 5-hydroxymethyl-2-furfural) using a modified QuEChERS technique coupled with GC- ... were analyzed by the method to investigate how furfurals evolved during process. Then risk assessment was conducted ... contents of bound and free 5-hydroxymethyl-2-furfural demonstrated largest increase during spray-drying (6-11 ...
Tópico(s): Food composition and properties
2021 - Elsevier BV | Food Chemistry
Oleg Kikhtyanin, Valeriia Korolova, Andrew Spencer, Lada Dubnová, Bogdan Shumeiko, David Kubička,
Aldol condensation of furfural and acetone is often used as a model reaction to test acid-base properties of solid catalysts. The present study describes the effect of furfural acidity on the catalytic performance of MgAl mixed oxides. Three furfural sources differing in their acidity were used and ... condensation at T = 55 °C and acetone to furfural molar ratio of 10. The furfural conversion over MgAl mixed oxides depended on the acidity of the furfural source, and the catalysts were partially consumed for ...
Tópico(s): Supercapacitor Materials and Fabrication
2020 - Elsevier BV | Catalysis Today
Shihui Yang, Mary Ann Franden, Xia Wang, Yat-Chen Chou, Yun Hu, Steven D. Brown, Philip T. Pienkos, Min Zhang,
... elucidated yet. In this study, molecular responses to furfural were investigated using transcriptomic approaches of both chip-based microarray and a directional mRNA-Seq. Furfural acute shock time-course experiment with 3 g/L furfural supplemented when cells reached exponential phase and stress ... experiment in the presence of 2 g/L furfural from the beginning of fermentation were carried out ... of short-term and long-term effects of furfural on 8b. Furfural negatively affected 8b growth in terms of final ...
Tópico(s): Enzyme Production and Characterization
2020 - Frontiers Media | Frontiers in Microbiology
Ashutosh Mittal, Heidi M. Pilath, David K. Johnson,
5-hydroxymethylfurfural (HMF) and furfural are promising platform molecules which can be converted to fuel intermediates and hydrocarbon fuels. Herein, one-step, direct conversion of ... carbohydrates in never treated biomass to HMF and furfural in a microwave reactor was investigated. The influence ... optimum process conditions to maximize the yields of furfurals. The reaction conditions of 200 °C for 5 ... and hemicelluloses present in untreated poplar wood to furfural and HMF in yields of 91 and 69%, respectively. Furfural could be easily produced in yields greater than ...
Tópico(s): Supercapacitor Materials and Fabrication
2020 - American Chemical Society | Energy & Fuels
Ouwen He, Yangfan Zhang, Pan Wang, Lina Liu, Qian Wang, Nan Yang, Wenjie Li, Pascale Champagne, Hongbing Yu,
Furfural and 5-hydroxymethylfurfural (HMF) have been identified as promising bio-platform furans that have a wide ... of potential applications as biofuels, bioplastics, and biochemicals. Furfural and HMF are typically synthesized from the substrates of C5 sugars and C6 sugars, respectively. Furfural can also be produced from C6 sugars, which ... cleavage. In this study, the simultaneous production of furfural and HMF from glucose was conducted over different ... a SnSO4-H2SO4 coupling catalyst, with an optimized furfural yield of 42% and an HMF yield of ...
Tópico(s): Supercapacitor Materials and Fabrication
2020 - Multidisciplinary Digital Publishing Institute | Catalysts
Majid Kermani, Mahdi Farzadkia, Maryam Morovati, Mahmoud Taghavi, Saeid Fallahizadeh, Razieh Khaksefidi, Samira Norzaee,
Furfural is a toxic compound that can cause many problems for human health and the environment. In this study, we addressed the degradation of furfural in aqueous solution using the activated persulfate (SPS) ... effect of various parameters (pH, oxidizing dose, initial furfural concentration, US frequency, Inorganic anions concentration, and scavenger) ... were examined. The results showed, in order to furfural removal, the US had excellent efficiency in activating ... US processes, 95.3% and 58.4% of furfural (at 25 mg/L concentration) was decomposed in ...
Tópico(s): Industrial Gas Emission Control
2020 - Elsevier BV | Journal of Environmental Management
Alejandra Rodríguez-Montaña, María H. Brijaldo, Leidy Yanira Rache Cardenal, Ludmila P.C. Silva, Laura M. Esteves,
... and potential building block platform molecules (e.g furfural) throughout biological or chemical methods. Furfural can be synthetized from cellulose using hydrolysis and dehydration reactions. Furfural has a furan ring and carbonyl functional group ... molecules include gasoline, diesel and jet fuel. However, furfural can also be transformed by hydrogenation, oxidation, decarboxylation and condensation reactions. The selective hydrogenation of furfural produces furfuryl alcohol, an important industrial compound, which ...
Tópico(s): Enzyme Catalysis and Immobilization
2020 - Pedagogical and Technological University of Colombia | CIENCIA EN DESARROLLO
Gerardo Gómez Millán, Rahul Prasad Bangalore Ashok, Pekka Oinas, Jordi Llorca, Herbert Sixta,
Abstract Furfural has been highlighted as one of the top ten most rewarding bio-based building blocks by the US Department of Energy. In this study, furfural was produced from xylose and birch hydrolysate liquor ... reactor in a biphasic system. The formation of furfural was conducted under auto-catalyzed conditions. 2-sec-Butylphenol was used as extractant to promptly extract furfural from the aqueous phase in order to minimize furfural degradation reactions. The effect of time, temperature, and ... to-aqueous phase ratio were investigated. The maximum furfural yields from xylose and birch hydrolysate liquor as ...
Tópico(s): Microbial Metabolic Engineering and Bioproduction
2020 - Springer Nature | Biomass Conversion and Biorefinery
... and experimental conditions determine the selective hydroconversion of furfural and 5-hydroxymethylfurfural.Chem. Rev. 2018; 118: 11023- ... by {110} facets—in the photocatalytic upgrading of furfural in methanol and observed astounding differences in product ... favored the hydrogenation of the aldehyde group, offering furfural alcohol in about 90% selectivity, rutile nanorods exclusively ... and hydrofuroin via C–C coupling of two furfural molecules. Bipyramid-shaped anatase provided a mixture of ... for the transformation of cellulose-derived 5-methyl furfural and lignin-derived vanillin. Electron paramagnetic resonance, X- ...
Tópico(s): Nanomaterials for catalytic reactions
2020 - Elsevier BV | Chem
Syed Bilal Jilani, Chandra Dev, Danish Eqbal, Kamran Jawed, Rajendra Prasad, Syed Shams Yazdani,
Abstract Background Furfural and 5-hydroxymethyl furfural (5-HMF) are key furan inhibitors that are generated due to breakdown of lignocellulosic sugars at high temperature and acidic treatment conditions. Both furfural and 5-HMF act in a synergistic manner ... cellular NADPH pools have successfully imparted tolerance against furfural and 5-HMF. In present study, deletion of ... coli strain SSK101 to impart tolerance towards either furfural or 5-HMFor both inhibitors together. Results A ... strain SSK101. In presence of 1 g/L furfural in minimal AM1 media, the rate of biomass ...
Tópico(s): Catalysis for Biomass Conversion
2020 - BioMed Central | Microbial Cell Factories
Shufeng Li, Yongqiang Yang, Houchao Shan, Jing Zhao, Ze Wang, Di Cai, Peiyong Qin, Jan Baeyens, Tianwei Tan,
Furfural is globally produced at 300,000 tons per year by the hydrolysis of biomass rich in hemicellulose. Exploring novel materials for efficient adsorption of furfural from the aqueous solution is thus highly required. ... COF-300 as a high-efficient adsorbent for furfural via studies on time-dependent adsorption, isotherms, desorption ... regeneration. COF-300 exhibited an ultrafast adsorption of furfural, with the adsorption reaching equilibrium within 10 s. ... g−1 at 298.15 K. The adsorbed furfural was easily desorbed from COF-300 and the ...
Tópico(s): Caching and Content Delivery
2019 - Elsevier BV | Separation and Purification Technology