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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 04044naa a2200409 4500 | |
| 001 | oai:research.chalmers.se:0cf98933-e74d-4aef-9cec-b34a69578e93 | |
| 003 | SwePub | |
| 008 | 171008s2015 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://research.chalmers.se/publication/2080802 URI |
| 024 | 7 | a https://doi.org/10.1039/C4CY01470G2 DOI |
| 040 | a (SwePub)cth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Chaoquan, Hu,d 1981u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)chaoquan |
| 245 | 1 0 | a Selectivity and kinetics of methyl crotonate hydrogenation over Pt/Al2O3 |
| 264 | 1 | c 2015 |
| 338 | a electronic2 rdacarrier | |
| 520 | a The hydrogenation of gas-phase methyl crotonate (MC) over Pt/Al2O3 was investigated with the aim to understand C=C hydrogenation in unsaturated methyl esters. Three Pt/Al2O3 catalysts with different Pt dispersions were prepared by varying calcination temperature and evaluated for MC hydrogenation. The main products were found to be methyl butyrate (MB) and methyl 3-butenoate (M3B), resulting from hydrogenation and shift of the C=C bond in MC, respectively. The measured activity for both hydrogenation and shift of the C=C in MC was found to depend on the Pt dispersion where higher Pt dispersion favors the C=C hydrogenation reaction. The effect of reactant concentrations on the activity and selectivity for MC hydrogenation over the Pt/Al2O3 catalyst was examined in detail. Under the investigated conditions, the C=C hydrogenation was found to have a negative reaction order with respect to MC concentration but a positive H2 order. Further understanding of the MC hydrogenation was provided from H2 chemisorption experiments over the catalyst with and without pre-adsorbed MC and from transient experiments using alternating MC and H2 feeds. Based on the present experimental results, a reaction pathway was proposed to describe gas-phase MC hydrogenation over Pt/Al2O3. In order to gain more insight into the reaction, a kinetic analysis of MC hydrogenation was performed by fitting a power-law model to the kinetic data, moreover, dissociative H2 adsorption on the catalyst was found to be the rate-determining step by comparing the power-law model with the overall rate expressions derived from mechanistic considerations. | |
| 650 | 7 | a NATURVETENSKAPx Kemix Fysikalisk kemi0 (SwePub)104022 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Chemical Sciencesx Physical Chemistry0 (SwePub)104022 hsv//eng |
| 650 | 7 | a TEKNIK OCH TEKNOLOGIERx Kemiteknikx Kemiska processer0 (SwePub)204012 hsv//swe |
| 650 | 7 | a ENGINEERING AND TECHNOLOGYx Chemical Engineeringx Chemical Process Engineering0 (SwePub)204012 hsv//eng |
| 650 | 7 | a TEKNIK OCH TEKNOLOGIERx Kemiteknik0 (SwePub)2042 hsv//swe |
| 650 | 7 | a ENGINEERING AND TECHNOLOGYx Chemical Engineering0 (SwePub)2042 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng |
| 700 | 1 | a Creaser, Derek,d 1966u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)creaser |
| 700 | 1 | a Grönbeck, Henrik,d 1966u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)ghj |
| 700 | 1 | a Ojagh, Houman,d 1976u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)ojagh |
| 700 | 1 | a Skoglundh, Magnus,d 1965u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)skoglund |
| 710 | 2 | a Chalmers tekniska högskola4 org |
| 773 | 0 | t Catalysis Science and Technologyg 5:3, s. 1716-1730q 5:3<1716-1730x 2044-4753x 2044-4761 |
| 856 | 4 | u http://publications.lib.chalmers.se/records/fulltext/208080/local_208080.pdfx primaryx freey FULLTEXT |
| 856 | 4 8 | u https://research.chalmers.se/publication/208080 |
| 856 | 4 8 | u https://doi.org/10.1039/C4CY01470G |
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