Results 251 to 260 of about 433,592 (284)

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
openaire   +1 more source

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
openaire   +3 more sources

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

Reactive Vaporization of Crude Glycerol in a Fluidized Bed Reactor

Industrial & Engineering Chemistry Research, 2010
Crude glycerol is a coproduct of the trans-esterification of vegetable oil and animal fat to biodiesel that contains as much as 5% salt. Processing the glycerol to value added products often requires an expensive distillation step. In this work, we propose a new process in which crude liquid glycerol is fed directly to a fluidized bed, vaporizes, and ...
B. Rafii Sereshki, S.-J. Balan, G. S. Patience, J.-L. Dubois   +3 more
openaire   +2 more sources

Long-term monodigestion of crude glycerol in a UASB reactor

Bioresource Technology, 2013
The aim of this study was to discuss the experience from long-term operation of a laboratory UASB reactor inoculated with suspended or granulated biomass for the treatment of different kinds of crude glycerol in undiluted or diluted state. The UASB reactor was operated under mesophilic conditions.
Miroslav, Hutňan, Nina, Kolesárová, Igor, Bodík, Marianna, Czölderová   +3 more
openaire   +2 more sources

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
openaire   +1 more source

Selective hydrogenation of crude glycerol to propanol

2017
Many EU directives regulate the emission of greenhouse gases from fossil fuels. Some of the fossil components have been replaced by bio-components which emit less greenhouse gases. The blending of bio-components will be regulated in the renewable energy directive (RED) from 2020 onwards.
openaire   +1 more source

Conversion of Crude Glycerol to Citric Acid by Yarrowia Lipolytica

2019
Citric acid is a key biochemical in the emerging bioeconomy, to date mostly produced through fermentation by A. niger of molasses. One main issue is represented by the replacement of the molasses-based medium with less expensive and more sustainable feedstocks.
Giacomobono R., Albergo R., Valerio V., Bari I. D.   +3 more
openaire   +2 more sources

Bleaching of crude glycerol by organobentonite

2010
As an alternative to fossil fuel, production of biodiesel is very attractive but limited supply of raw materials, capital and production costs make the process less economically feasible. Because the process economics is improved by the supplementary utilization of glycerole, refinery of the crude glycerole is of importance even it means the additional
KOCAK, Burcu, YAPAR, Saadet
openaire   +2 more sources

Valorization of crude glycerol by microorganisms: A bibliographic and technological survey

Marine Pollution Bulletin
The objective of this review was to investigate the current state of the development of biotechnological routes for the valorization of crude glycerol (CG) using microorganisms, through patent documents and scientific articles. The patents and articles were retrieved through combinations of the code C12N (microorganisms or enzymes), microalgae, and the
Ingrid Rocha, Teixeira, Gabriel Sapucaia, Carvalho, Larissa Santos, Barbosa, Jadson, Dos Santos França, Ravena Maria, de Almeida Medeiros, Bianca Bomfim, Andrade, Carolina Oliveira, de Souza, Jania Betania Alves, da Silva, Denilson, de Jesus Assis, Lucas Guimarães, Cardoso   +9 more
openaire   +2 more sources