Jump to main content
Jump to site search

Issue 9, 2016
Previous Article Next Article

Influencing the activity and selectivity of alkylaromatic catalytic transformations by varying the degree of delamination in MWW zeolites

Author affiliations

Abstract

The degree of delamination and chemical composition of MWW zeolites have been varied by adjusting the synthesis parameters and modifying the temperature of the swelling step applied to the layered precursor (MCM-22(P)), and their impact on the catalytic behavior of these MWW materials for alkylaromatic transformation reactions has been studied. Kinetic experiments performed in a fluidized-type riser simulator have allowed us to establish a complete reaction network and to discern the impact of the catalyst's variables on competing alkylation and transalkylation of alkylbenzene molecules. In this way, the positive effect of delamination of the MWW layered precursor regarding the selectivity for the alkylation product with respect to transalkylation and catalyst deactivation has been confirmed by comparing a microporous MCM-22 with a highly delaminated ITQ-2 obtained from the same layered precursor, and also for 3D MCM-22 and highly delaminated ITQ-2 with comparable acidic properties.

Graphical abstract: Influencing the activity and selectivity of alkylaromatic catalytic transformations by varying the degree of delamination in MWW zeolites

Back to tab navigation

Article information


Submitted
01 Oct 2015
Accepted
25 Nov 2015
First published
30 Nov 2015

Catal. Sci. Technol., 2016,6, 3166-3181
Article type
Paper

Influencing the activity and selectivity of alkylaromatic catalytic transformations by varying the degree of delamination in MWW zeolites

M. Osman, S. Al-Khattaf, U. Díaz, C. Martínez and A. Corma, Catal. Sci. Technol., 2016, 6, 3166
DOI: 10.1039/C5CY01675D

Social activity

Search articles by author

Spotlight

Advertisements