Zobrazeno 1 - 10 of 10 pro vyhledávání: '"Ole Henrik Ellestad"'
2
Isobutane/2-butene alkylation on fresh and regenerated La-EMT-51 compared with H-EMT. The catalysts selectivity changes at high butene conversion in a slurry reactor
Autor: Arne Karlsson, Helle B. Mostad, Ole Henrik Ellestad, Tine Rørvik
Publikováno v: Applied Catalysis A: General. 156:267-283
Isobutane/2-butene alkylation was carried out in a semibatch slurry reactor using the hydrogen and lanthanum exchanged form of hexagonal faujasite (EMT, Si Al bulk ratio of 3.5) as catalysts. 51% La exchange in the EMT sample (La-EMT-51) gave a very
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0657f8cbfb7435ea73aaee3f48279c01
https://doi.org/10.1016/s0926-860x(97)00041-0
Zobrazit plný text záznamu
3
Isobutane/2-butene alkylation over faujasite type zeolites in a slurry reactor. Effect of operating conditions and catalyst regeneration
Autor: Helle B. Mostad, Ole Henrik Ellestad, Tine Rørvik, Michael Stöcker
Publikováno v: Applied Catalysis A: General. 137:235-253
The isobutane/2-butene alkylation has been catalysed by acidic cubic faujasites (H-FAU and CeY-98) and a hexagonal faujasite (H-EMT) in a semibatch slurry reactor. H-EMT exhibited the best results during the reaction with respect to an improved deact
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f7697532db255d3ca5dfabe4d3f29eb1
https://doi.org/10.1016/0926-860x(95)00282-0
Zobrazit plný text záznamu
5
Nafion-H as catalyst for isobutane/2-butene alkylation compared with a cerium exchanged Y zeolite
Autor: Tine Rørvik, Helle B. Mostad, Ivar M. Dahl, Ole Henrik Ellestad
Publikováno v: Catalysis Letters. 33:127-134
A solid superacidic Nafion-H polymer was examined as a catalyst for isobutane/2-butene alkylation and compared with a cerium-exchanged Y zeolite. Both catalysts demonstrate initial alkylation activity with rapid decrease in alkylation selectivity. Th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9cca4d56fd77950a88f2ab5236b8fea2
https://doi.org/10.1007/bf00817052
Zobrazit plný text záznamu
6
MCM-41: a model system for adsorption studies on mesoporous materials
Autor: Ralf Schmidt, Eddy W. Hansen, Ole Henrik Ellestad, Michael Stöcker, Duncan Akporiaye
Publikováno v: Microporous Materials. 3:443-448
Purely siliceous MCM-41 materials with different pore sizes were synthesised. The obtained nitrogen isotherms of these materials varied from a “type I-like” isotherm (small pore size) over a reversible type IV isotherm (intermediate pore size) to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c04ad0589ae69bc086d175d1cebefa4
https://doi.org/10.1016/0927-6513(94)00055-z
Zobrazit plný text záznamu
7
Characterisation of a cubic mesoporous MCM-48 compared to a hexagonal MCM-41
Autor: Ole Henrik Ellestad, Ralf Schmidt, Michael Stöcker
Publikováno v: Zeolites: A Refined Tool for Designing Catalytic Sites, Proceedings of the International Zeolite Symposium ISBN: 9780444821300
A cubic MCM-48 and a hexagonal MCM-41 material were synthesised. The pore ordering was confirmed by X-ray powder diffraction and HREM studies. The pore size of the materials was determined to 2.9 nm for MCM-41 and 2.5 nm for MCM-48 by N 2 adsorption
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e996a919b9096c3815132460b94c4c7
https://doi.org/10.1016/s0167-2991(06)81884-7
Zobrazit plný text záznamu
8
Synthesis of Al-Containing MCM-41 Materials: Template Interaction and Removal
Autor: Ralf Schmidt, Ole Henrik Ellestad, Michael Stöcker, Duncan Akporiayea
Publikováno v: Studies in Surface Science and Catalysis ISBN: 9780444818478
1. Abstract MCM-41 materials with bulk Si/A1 ratios of 18, 9 and 4 and having different pore sizes were synthesised and characterised by XRD and HREM. The long range pore ordering of the obtained materials increased with the aluminium content. TGA ex
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::604c8b198eb400ca91700b40fd2914e6
https://doi.org/10.1016/s0167-2991(08)64097-5
Zobrazit plný text záznamu
9
Synthesis of a mesoporous MCM-41 material with high levels of tetrahedral aluminium
Autor: Ralf Schmidt, Michael Stöcker, Duncan Akporiaye, Ole Henrik Ellestad
Publikováno v: J. Chem. Soc., Chem. Commun.. :1493-1494
A Crystalline mesoporous member of the MCM-41 family has been synthesised with a Si : Al ratio as low as 8.5 : 1, without observing octahedral aluminium.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::222029697eaf4e020bf74a7de8495b0b
https://doi.org/10.1039/c39940001493
Zobrazit plný text záznamu
10
Heterogenization of homogeneous catalysts I. EPR study of (η-C5H5)2TiCl2/(C2H5)nAlCl3−n (n = 1, 2, 3) supported on silica gel
Autor: Dag Slotfeldt-Ellingsen, Ole Henrik Ellestad, Ivar M. Dahl
Publikováno v: Journal of Molecular Catalysis. 9:423-434
Heterogeneous Ziegler-Natta catalysts were prepared by reaction of Et n AlCl 3− n ( n = 1 – 3) and Cp 2 TiCl 2 with silica gel in two ways. (1) Et n AlCl 3− n was reacted with the silica before Cp 2 TiCl 2 was added. This led to the formation o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8065258964e16365d4b8befed8299c92
https://doi.org/10.1016/0304-5102(80)80034-4
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje