Results 221 to 230 of about 71,601 (260)

Characterization of Crude Glycerol from Biodiesel Plants

Journal of Agricultural and Food Chemistry, 2012
Characterization of crude glycerol is very important to its value-added conversion. In this study, the physical and chemical properties of five biodiesel-derived crude glycerol samples were determined. Three methods, including iodometric-periodic acid method, high performance liquid chromatography (HPLC), and gas chromatography (GC), were shown to be ...
Shengjun, Hu, Xiaolan, Luo, Caixia, Wan, Yebo, Li   +3 more
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Glycerolysis of Crude Methyl Esters with Crude Glycerol from Biodiesel Production

Journal of the American Oil Chemists' Society, 2013
AbstractGlycerolysis of crude fatty acid methyl esters (FAME) with crude glycerol derived from biodiesel production was performed. The reaction was accomplished at temperatures ranging between 160 and 200 °C and molar ratios of FAME to glycerol ranging between 1.5 and 3.0.
David A. Echeverri, Fernando Cardeño, Luis A. Rios   +2 more
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Polyols and polyurethane foams from acid‐catalyzed biomass liquefaction by crude glycerol: Effects of crude glycerol impurities

Journal of Applied Polymer Science, 2014
ABSTRACTThe effects of crude glycerol impurities on acid‐catalyzed biomass liquefaction by crude glycerol were investigated. Salts (i.e., NaCl and Na2SO4) decreased biomass conversion ratios and negatively affected the properties of polyols produced. Regression models were developed and validated as appropriate for describing the relationships between ...
Shengjun Hu, Yebo Li
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Investigating Crude Glycerol Electrooxidation

ECS Meeting Abstracts
Decarbonization of chemical manufacturing requires a range of strategies, including the utilization of process waste. This waste can then be used in processes powered by renewable electricity, such as electrocatalysis, to synthesize other useful chemicals. In doing so, process waste is reduced and industrially-relevant chemicals are produced without
Rachel N Gaines, Adam P Sibal, Bridget E Friel, Vijay M Shah, Ashlynn S Stillwell, Paul J.A Kenis   +5 more
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Bioethanol Production by Crude Glycerol Fermentation

2017
An innovative biological process to produce ethanol and hydrogen from crude glycerol has been technically and economically assessed. Results shows an ethanol/glycerol yield of 1/3 kg/kg and a hydrogen/glycerol yield of 1/5 Nm3/kg. The cost of production of ethanol (without considering revenues from hydrogen produced) is in line with the market and was ...
Salladini, A., Maschiocchi, B., Morico, B., Martorelli, F., Iaquaniello, G., Zarli, A.   +5 more
openaire   +1 more source

Microbial Conversion of Crude Glycerol to Dihydroxyacetone

Waste and Biomass Valorization, 2014
Glycerol is increasingly being used as a versatile raw material within the biorefinery. However, it is very expensive to refine the crude glycerol to a high purity. In this study, the biotransformation of crude glycerol (79 % purity) using Gluconobacter oxydans spp. oxydans for the production of fine chemical dihydroxyacetone (DHA) was investigated.
Stefan Liebminger, Robert Hofbauer, Matthäus Siebenhofer, Gibson S. Nyanhongo, Georg M. Guebitz   +4 more
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Fungal biotransformation of crude glycerol into malic acid

Zeitschrift für Naturforschung C, 2015
Abstract Malic acid production from the biodiesel coproduct crude glycerol by Aspergillus niger ATCC 9142, ATCC 10577 and ATCC 12846 was observed to occur with the highest malic acid level acid being produced by A. niger ATCC 12846.
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Rapid monitoring of glycerol in fermentation growth media: Facilitating crude glycerol bioprocess development

Talanta, 2014
Recently, the need for crude glycerol valorisation from the biodiesel industry has generated many studies for practical and economic applications. Amongst them, fermentations based on glycerol media for the production of high value metabolites are prominent applications.
Sergi, Abad, Xavier, Pérez, Antoni, Planas, Xavier, Turon   +3 more
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Lipid Production for Biodiesel from Sludge and Crude Glycerol

Water Environment Research, 2017
ABSTRACT: Oleaginous yeast Trichosporon oleaginosus was studied for lipid production using municipal sludge with or without fortification of crude glycerol in a 15‐L fermenter. The maximum lipid content (concentration) was 32.0% w/w (9.35 g/L), 33.6% (10.13 g/L), 33.3% (9.13 g/L), and 33.1% (9.03 g/L) w/w with the addition of 25, 50, 100, and 150 g/L ...
Zhang, Xiaolei, Chen, Jiaxin, Yan, Song, Tyagi, Rajeshwar Dayal, Surampalli, Rao Y., Li, Ji   +5 more
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Bioconversion of crude glycerol to glycolipids in Ustilago maydis

Bioresource Technology, 2011
Ustilago maydis is known to produce glycolipid-type biosurfactants. Here, we show that U. maydis is able to efficiently convert biodiesel-derived crude glycerol to glycolipids. We have optimized the medium composition and environmental factors for bioconversion of crude glycerol to glycolipids.
Liu, Y., Koh, C.M.J., Ji, L.
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