Searched for: subject%3A%22Glycerol%22
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Erkan, Deniz (author)
As part of the efforts to mitigate climate change, the electrochemical reduction of CO2 into valuable chemicals and fuels has been identified as a pivotal technology due to its potential for CO2 utilization and ability to store excess electricity as chemical energy. While significant progress has been made in optimizing various aspects of the...
master thesis 2023
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Malubhoy, Zahabiya (author), Bahia, Frederico Mendonça (author), de Valk, Sophie Claire (author), de Hulster, A.F. (author), Rendulić, Toni (author), Ortiz, Juan Paulo Ragas (author), Xiberras, Joeline (author), Klein, Mathias (author), Mans, R. (author), Nevoigt, Elke (author)
Background: The microbial production of succinic acid (SA) from renewable carbon sources via the reverse TCA (rTCA) pathway is a process potentially accompanied by net-fixation of carbon dioxide (CO<sub>2</sub>). Among reduced carbon sources, glycerol is particularly attractive since it allows a nearly twofold higher CO<sub>2</sub>-fixation...
journal article 2022
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Dekker, W.J.C. (author), Jürgens, H. (author), Ortiz Merino, R.A. (author), Mooiman, C. (author), van den Berg, Remon (author), Kaljouw, Astrid (author), Mans, R. (author), Pronk, J.T. (author)
While thermotolerance is an attractive trait for yeasts used in industrial ethanol production, oxygen requirements of known thermotolerant species are incompatible with process requirements. Analysis of oxygen-sufficient and oxygen-limited chemostat cultures of the facultatively fermentative, thermotolerant species Ogataea parapolymorpha...
journal article 2022
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Sulaiman, Muhammad (author), Iqbal, Tanveer (author), Yasin, Saima (author), Mahmood, Hamayoun (author), Shakeel, A. (author)
Diverse applications of polymeric materials have prompted development of eco-friendly, efficient, and economical materials. These characteristics can be obtained by incorporating appropriate fillers in the polymeric matrix. The objective of this work is to investigate impact of aqueous glycerol (Gly) treated rice husk (RH) on surface mechanical...
journal article 2021
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He, Songbo (author), Zuur, Kenny (author), Santosa, Dian Sukmayanda (author), Heeres, Andre (author), Liu, C. (author), Pidko, E.A. (author), Heeres, Hero Jan (author)
The catalytic conversion of pure glycerol to bio-aromatics (bio-BTX) over an un-modified H-ZSM-5 (SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratio of 23) via an ex-situ catalytic pyrolysis approach in a continuous tandem-micro reactor at a scale of 1 g glycerol h<sup>−1</sup> was investigated. A BTX peak carbon yield of 28.1 ± 0.2 %...
journal article 2021
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He, Songbo (author), Goldhoorn, Hero Reinder (author), Tegudeer, Zhuorigebatu (author), Chandel, Anshu (author), Heeres, Andre (author), Liu, C. (author), Pidko, E.A. (author), Heeres, Hero Jan (author)
The use of H-ZSM-5 with various binders (Al<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>, and kaolinite, 10 wt% on catalyst formulation) for the catalytic conversion of glycerol to bio-based aromatics (GTA) was investigated in a continuous bench-scale unit at a pyrolysis temperature of 450 °C, catalytic upgrading temperature of 500 °C, WHSV of...
journal article 2021
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Mahmood, Hamayoun (author), Mehmood, Saqib (author), Shakeel, A. (author), Iqbal, Tanveer (author), Kazmi, Mohsin Ali (author), Khurram, Abdul Rehman (author), Moniruzzaman, Muhammad (author)
Glycerol pretreatment is a promising method for the environmentally-friendly transformation of lignocellulosic materials into sustainable cellulose-rich raw materials (i.e., biopolymer) to fabricate biocomposites. Here, a comparison of aqueous acidified glycerol (AAG) pretreatment of wheat straw (WS) with alkaline, hot water, and dilute acid...
journal article 2021
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Xiberras, Joeline (author), Klein, Mathias (author), de Hulster, A.F. (author), Mans, R. (author), Nevoigt, Elke (author)
Previously, our lab replaced the endogenous FAD-dependent pathway for glycerol catabolism in S. cerevisiae by the synthetic NAD-dependent dihydroxyacetone (DHA) pathway. The respective modifications allow the full exploitation of glycerol’s higher reducing power (compared to sugars) for the production of the platform chemical succinic acid ...
journal article 2020
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Gelain, L. (author), van der Wielen, L.A.M. (author), van Gulik, W.M. (author), da Cruz Pradella, José Geraldo (author), Carvalho da Costa, Aline (author)
Cellulase production can be divided into two steps: growth stage; followed by an induction stage. To develop a mathematical model for the optimization of this strategy, two sets of experiments were performed in batch mode for parameter estimation. One set of experiments was performed to evaluate the influence of glycerol regarding cell growth...
journal article 2020
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Chimentão, R. J. (author), Hirunsit, P. (author), Torres, C. S. (author), Ordoño, M. Borges (author), Urakawa, A. (author), Fierro, J. L.G. (author), Ruiz, D. (author)
Glycerol is produced in large quantities as a byproduct of biodiesel, and among others hydroxyacetone (acetol) is an important commodity obtained from glycerol. Metallic Cu has been identified as active site for the dehydration of glycerol to hydroxyacetone and acid and metal sites are known to influence the catalytic performance. In this...
journal article 2020
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Bale, Nicole J. (author), Sorokin, Dimitry Y. (author), Hopmans, Ellen C. (author), Koenen, Michel (author), Irene Rijpstra, W. C. (author), Villanueva, Laura (author), Wienk, Hans (author), Sinninghe Damsté, Jaap S. (author)
We analyzed the polar membrane lipids of 13 strains of halo(alkali)philic euryarchaea from hypersaline lakes. Nine belong to the class Halobacteria, representing two functional groups: aerobic polysaccharide utilizers and sulfur-respiring anaerobes. The other four strains represent halo(alkali)philic methanogens from the class Methanomicrobia...
journal article 2019
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Avhad, Mangesh R. (author), Gangurde, L.S. (author), Sánchez, Marcos (author), Bouaid, Abderrahim (author), Aracil, José (author), Martínez, Mercedes (author), Marchetti, Jorge M. (author)
The present article demonstrates a superior catalytic performance of glycerol-enriched calcium oxide for biodiesel production than other calcium-based counterparts. The proficiency of glycerol-enriched calcium oxide in catalyzing the methanolysis of crude Jatropha curcas oil containing high free fatty acids content was systematically...
journal article 2018
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Fernandez Dacosta, C. (author), Van Der Spek, Mijndert (author), Hung, Christine Roxanne (author), Oregionni, Gabriel David (author), Skagestad, Ragnhild (author), Parihar, Prashant (author), Gokak, D. T. (author), Strømman, Anders Hammer (author), Ramirez, Andrea (author)
CO<sub>2</sub> utilisation is gaining interest as a potential element towards a sustainable economy. CO<sub>2</sub> can be used as feedstock in the synthesis of fuels, chemicals and polymers. This study presents a prospective assessment of carbon capture from a hydrogen unit at a refinery, where the CO<sub>2</sub> is either stored, or partly...
journal article 2017
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ten Dam, J. (author)
The production of renewable chemicals is gaining attention over the past few years. The natural resources from which they can be derived in a sustainable way are most abundant in sugars, cellulose and hemi cellulose. These highly functionalized molecules need to be de-functionalized in order to be feedstocks for the chemical industry. A...
doctoral thesis 2016
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Moralejo Gárate, H. (author)
Polyhydroxyalkanotes (PHAs) are naturally occurring polymers synthesized by a wide range of microorganisms. Their physiological role is to act as carbon and energy reserves, and their mechanical and physical properties are similar to those of petrochemical plastics. PHAs can be synthesized from renewable materials and they are biodegradable....
doctoral thesis 2014
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Guadalupe-Medina, V. (author), Wisselink, H.W. (author), Luttik, M.A.H. (author), De Hulster, E. (author), Daran, J.M. (author), Pronk, J.T. (author), Van Maris, A.J.A. (author)
Background Redox-cofactor balancing constrains product yields in anaerobic fermentation processes. This challenge is exemplified by the formation of glycerol as major by-product in yeast-based bioethanol production, which is a direct consequence of the need to reoxidize excess NADH and causes a loss of conversion efficiency. Enabling the use of...
journal article 2013
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Ten Dam, J. (author), Djanashvili, K. (author), Kapteijn, F. (author), Hanefeld, U. (author)
Screening of four commercial catalysts (Pt/Al2O3, Pt/SiO2, Pd/Al2O3, and Pd/SiO2) and four acidic additives (hydrochloric, tungstic, phosphotungstic, and silicotungstic acids) shows that the combination of a platinum hydrogenation catalyst with tungsten containing acidic additives yields 1,3-propanediol from aqueous glycerol. The performance of...
journal article 2012
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Ruoff, M.C. (author)
In this work we developed a numerical model for channel flow on a pore or micro scale. A straight channel was simulated with a flow regime of Re=0.03 and Re=0.3 (comparable to typical fluid flow in petroleum reservoirs) to visualize the characteristics of flow and dispersion up to the Fickian limit. The objective of this study was to quantify...
master thesis 2011
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Moralejo-Gárate, H. (author), Mar'atusalihat, E. (author), Kleerebezem, R. (author), Van Loosdrecht, M.C.M. (author)
In this work, the potential of using microbial community engineering for production of polyhydroxyalkanoates (PHA) from glycerol was explored. Crude glycerol is a by-product of the biofuel (biodiesel and bioethanol) industry and potentially a good substrate for bioplastic production. A PHA-producing microbial community was enriched based on...
journal article 2011
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Temudo, M.F. (author), Muyzer, G. (author), Kleerebezem, R. (author), Van Loosdrecht, M.C.M. (author)
Anaerobic fermentation by an open mixed culture was investigated at different pH values (4–8.5) and with three substrates (glucose, glycerol and xylose). The populations established in each condition were assessed by denaturing gradient gel electrophoresis analysis of the 16S ribosomal RNA gene fragments. The fermentation pattern and the...
journal article 2008
Searched for: subject%3A%22Glycerol%22
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