dc.creator | Alvarado Perea, Leo | |
dc.creator | Wolff, Tanya | |
dc.creator | Hamel, Christof | |
dc.creator | Seidel-Morgenstern, Andreas | |
dc.date.accessioned | 2020-04-09T22:57:45Z | |
dc.date.accessioned | 2022-10-14T15:16:28Z | |
dc.date.available | 2020-04-09T22:57:45Z | |
dc.date.available | 2022-10-14T15:16:28Z | |
dc.date.created | 2020-04-09T22:57:45Z | |
dc.date.issued | 2016-12-31 | |
dc.identifier | 0926-860X | |
dc.identifier | http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/1565 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4248647 | |
dc.description.abstract | In this work, an experimental study of the deactivation and regarding a possible regeneration procedure
in the ETP-reaction using Ni/AlMCM-41 (Si/Al = 60) was carried out. ETP experiments at different temperatures
and long time on-stream were carried out. Characterization of the catalyst after experiments was
performed using powder-XRD, N2-physisorption, NH3-TPD, TPO and TEM. At 250 and 350 ◦C the catalyst
did not suffer significant deactivation after 107 h on-stream. Nevertheless, the yield of propene was low. A
severe deactivation of the catalyst was observed at 450 ◦C where propene was the main reaction product.
Regeneration of the catalyst after 30 h on-stream at temperatures lower than 350 ◦C could be performed
using a mixture of 5 vol.% oxygen in N2. The regeneration of the catalyst was not possible after 30 h
on-stream at 450 ◦C. Filamentous carbon and Ni reduction are considered responsible of the deactivation
of the catalyst at 450 ◦C. The analysis of the obtained results suggests that a conjunct polymerization
process takes place and is the precursor of the reaction products and the carbon species. However, a
detailed study of the mechanism of the ETP-reaction should be done for a better understanding of the
deactivation of Ni/AlMCM-41. | |
dc.language | eng | |
dc.publisher | Elsevier | |
dc.relation | generalPublic | |
dc.relation | https://www.sciencedirect.com/science/article/abs/pii/S0926860X16306263?via%3Dihub | |
dc.rights | http://creativecommons.org/publicdomain/zero/1.0/ | |
dc.rights | CC0 1.0 Universal | |
dc.source | Applied Catalysis A: General Vol. 533, pp. 121-131 | |
dc.title | Experimental study of the deactivation of Ni/AlMCM-41 catalyst in the direct conversion of ethene to propene | |
dc.type | Artículos de revistas | |