Nanoporous reactor with tunable selectivity on alkylation of ethylbenzene

Vinu, A., Shanmugapriya, K., Chandrasekar, G., Murugesan, V. and Ariga, K. (2005) Nanoporous reactor with tunable selectivity on alkylation of ethylbenzene. Journal of Nanoscience and Nanotechnology, 5 4: 542-549. doi:10.1166/jnn.2005.073

Author Vinu, A.
Shanmugapriya, K.
Chandrasekar, G.
Murugesan, V.
Ariga, K.
Title Nanoporous reactor with tunable selectivity on alkylation of ethylbenzene
Journal name Journal of Nanoscience and Nanotechnology   Check publisher's open access policy
ISSN 1533-4880
Publication date 2005-04
Sub-type Article (original research)
DOI 10.1166/jnn.2005.073
Volume 5
Issue 4
Start page 542
End page 549
Total pages 8
Place of publication Valencia, CA, United States
Publisher American Scientific Publishers
Language eng
Formatted abstract
As nanoporous reactor, mesoporous silicates containing aluminum acidic site with n Si/n Al ratio up to 7 (AISBA-15) were prepared through a simple one-pot synthesis, which was recently developed by parts of us. The obtained materials were satisfactorily characterized by XRD and nitrogen adsorption/desorption and have regularly arranged hexagonal structures with pore diameters in the 9.6-11.8-nm range. The density and strength of the acid sites were determined using temperature-programmed desorption (TPD) of pyridine and controlled distribution between weak, moderate, and strong acid sites was demonstrated. The alkylation of ethylbenzene in a fixed-bed flow-type reactor using the AISBA-15 nanoporous reactor was carried out under various conditions such as temperature, feed ratio, flow rate, and time on stream. Interestingly, perfect regioselectivity between the m-isomer and the o-/p-isomers of diethylbenzene was achieved, where 100% selectivity of the m-isomer or the o-/p-isomers can be obtained by simply tuning the reaction temperature by using AISBA-15 catalyst with appropriate aluminum content.
Keyword Mesoporous silica
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
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