acid catalyst
Structure–selectivity relationship of a zirconia-based heterogeneous acid catalyst in the production of green mono- and dioleate product
... heterogeneous acid catalysts, such as ion exchange resins (Åkerman et ...homogeneous acid catalysts are dark product colour and burnt taste and require additional refining ...enous acid ...
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Development of a Novel Hydrophobic ZrO2–SiO2 Based Acid Catalyst for Catalytic Esterification of Glycerol with Oleic Acid
... to the repository administrator: tech-oatao@listes-diff.inp-toulouse.fr This is an author’s version published in: http://oatao.univ-toulouse.fr/21093 To cite this version: Kong, Pei San and Cognet, Patrick and ...
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Development of a Novel Hydrophobic ZrO2–SiO2 Based Acid Catalyst for Catalytic Esterification of Glycerol with Oleic Acid
... heterogeneous acid catalyzed esteri fication route is known to be more selective and cost e ffective compared to the aforementioned ...heterogeneous acid catalytic system is environmentally sustainable ...
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A novel hydrophobic ZRO2-SIO2 based heterogeneous acid catalyst for the esterification of glycerol with oleic acid
... heterogeneous acid catalyst using ZrO 2 -SiO 2 ...that catalyst hydrophobicity plays an important role to enhance formation rate of ...the catalyst is not suitable to robust usage and not ...
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Structure–selectivity relationship of a zirconia-based heterogeneous acid catalyst in the production of green mono- and dioleate product
... heterogeneous acid catalysts, such as ion exchange resins (Åkerman et ...homogeneous acid catalysts are dark product colour and burnt taste and require additional refining ...enous acid ...
13
Esterification of Glycerol With Oleic Acid Over Hydrophobic Zirconia-Silica Acid Catalyst and Commercial Acid Catalyst: Optimization and Influence of Catalyst Acidity
... 1 Sime Darby Research Sdn. Bhd., Pulau Carey, Malaysia, 2 Laboratoire de Génie Chimique, CNRS, INP, UPS, Université de Toulouse, Toulouse, France, 3 Department of Chemical Engineering, Faculty of Engineering, University ...
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Esterification of Glycerol With Oleic Acid Over Hydrophobic Zirconia-Silica Acid Catalyst and Commercial Acid Catalyst: Optimization and Influence of Catalyst Acidity
... Effects of Reaction Temperature ZrO 2 -SiO 2 -Me&EtPhSO 3 H catalyst was used to study the effects of reaction temperature. Various temperatures (100, 120, 140, and 160 ◦ C) were utilized under the stirring ...
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Catalyst Acceleration for Gradient-Based Non-Convex Optimization
... The main contribution of this paper is a generic meta-algorithm, dubbed 4WD-Catalyst, which is able to use a gradient-based optimization method M, originally designed for convex problems, and turn it into an ...
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CO and soot oxidation over Ce-Zr-Pr oxide catalyst
... spectroscopy to investigate the relationships between the structure and composition of materials and their catalytic performance. Better results for CO oxidation have been obtained with mixed oxides (performance scale, ...
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Hydrocarbon proton conducting polymers for fuel cell catalyst layers
... a catalyst layer because of its impact on ORR ...in catalyst layers show a stronger propen- sity for flooding, which impedes gas ...same catalyst layer system under low RH will suffer from poor ...
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Microbial fuel cell operation on carbon monoxide: cathode catalyst selection
... a b s t r a c t Electricity production from carbon monoxide (CO) in a microbial fuel cell (MFC) has recently been demonstrated. Efficient operation of this MFC requires a CO-tolerant and preferably inexpensive cathode. ...
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Back pressure effect on three-way catalyst light-off
... Fig. 2 Schematic drawing of the two-brick TWC, including positioning of temperature and pressure sensors; to scale except for channel size. The schematic setup of the flow bench for testing the catalytic converter is ...
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Homoepitaxial growth of catalyst-free GaN wires on N-polar substrates
... grow by MOVPE catalyst-free high crystal quality GaN wires showing good optical properties. It may be generalized to many other systems to get nanowires using other growth techniques combined with ...
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Practical Achievable Performance in Diesel Oxidation Catalyst Temperature Control
... to catalyst ageing. The length of this zone strongly depends on the catalyst and is a priori ...given catalyst, it can vary depending on the operating ...
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Model-based Temperature Control of a Diesel Oxidation Catalyst
... simplified catalyst modeling approaches have been introduced ...into catalyst parameters optimization (void fraction, material, precious metal loading distribution, ...
171
High Resolution STEM-HAADF microscopy on γ-Al2O3 supported MoS2 catalyst – Proof by image of the changes in dispersion and morphology of the slabs with addition of citric acid.
... The catalyst precursors were firstly sulfided at 623 K (heating rate of 3 K min -1 ) and ...of catalyst were put on a 300 mesh copper grid with holey carbon ...
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Stability of TiO2 Promoted PtCo/C Catalyst for Oxygen Reduction Reaction
... The stability of either PtCo/C or TiO 2 -PtCo/C catalysts was tested in 0.5 M H 2 SO 4 as the repetitive LSV. The electrode prepared from section 2.3 was mounted on the rotating disk electrode (RDE) and used as the ...
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Regeneration study of Ni/hydroxyapatite spent catalyst from dry reforming
... 2.1. Catalyst preparation The hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 ) support used in this work was provided by ...for catalyst deactivation is the support sintering [7] ...later catalyst ...
10
Catalyst Properties and Catalytic Performance of Char from Biomass Gasification
... experiment was to understand how the structure of the biomass changed as it was gasified, since surface area and pore size distribution are important properties of a catalyst. The impact of each of the different ...
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Pd-Ag/SiO2 xerogel catalyst forming by impregnation on alumina foams
... xerogel catalyst prepared in one step by sol-gel process has been entrapped in cylindrical porous alumina foams of three different pore sizes in order to shape the catalyst under the appropriate form with ...
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