Analysis of decisive structural parameters of zeolites for alkylation of benzene with ethylene
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00524178" target="_blank" >RIV/61388955:_____/20:00524178 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0308549" target="_blank" >http://hdl.handle.net/11104/0308549</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apcata.2019.117379" target="_blank" >10.1016/j.apcata.2019.117379</a>
Alternative languages
Result language
angličtina
Original language name
Analysis of decisive structural parameters of zeolites for alkylation of benzene with ethylene
Original language description
The effects of the zeolite structure and the Bronsted and Lewis sites on the activity and selectivity in alkylation of benzene with ethylene to ethylbenzene were investigated using three series of zeolites with different structures, Si/Al ratios and contents of Lewis sites. The 12-membered three-dimensional channels of beta zeolite ((star)BEA) provide higher selectivity to ethylbenzene compared to faujasite zeolite (FAU) with cavities in which the di-alkylated and heavier by-products are formed. The activity is controlled by the concentration of Bronsted acidic sites, while Lewis sites do not contribute to the activity or affect the selectivity. The highest activity and selectivity are obtained using Al-rich H-(star)BEA (Si/Al 4.2) with a high density of Bronsted groups in a well-defined channel structure sterically constrained for heavy by-products. It is shown that a three-dimensional channel structure with Bronsted acid sites in a shape selective environment is a key parameter controlling the activity and selectivity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Catalysis A - General
ISSN
0926-860X
e-ISSN
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Volume of the periodical
591
Issue of the periodical within the volume
FEB 2020
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
117379
UT code for WoS article
000514023200001
EID of the result in the Scopus database
2-s2.0-85076706905