dc.creatorAlvarado Perea, Leo
dc.creatorWolff, Tanya
dc.creatorHamel, Christof
dc.creatorSeidel-Morgenstern, Andreas
dc.date.accessioned2020-04-09T22:57:45Z
dc.date.accessioned2022-10-14T15:16:28Z
dc.date.available2020-04-09T22:57:45Z
dc.date.available2022-10-14T15:16:28Z
dc.date.created2020-04-09T22:57:45Z
dc.date.issued2016-12-31
dc.identifier0926-860X
dc.identifierhttp://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/1565
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4248647
dc.description.abstractIn 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.languageeng
dc.publisherElsevier
dc.relationgeneralPublic
dc.relationhttps://www.sciencedirect.com/science/article/abs/pii/S0926860X16306263?via%3Dihub
dc.rightshttp://creativecommons.org/publicdomain/zero/1.0/
dc.rightsCC0 1.0 Universal
dc.sourceApplied Catalysis A: General Vol. 533, pp. 121-131
dc.titleExperimental study of the deactivation of Ni/AlMCM-41 catalyst in the direct conversion of ethene to propene
dc.typeArtículos de revistas


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