Selective synthesis of linear alkylbenzene by alkylation of benzene with 1-dodecene over desilicated zeolites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00427874" target="_blank" >RIV/61388955:_____/14:00427874 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.cattod.2013.10.015" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2013.10.015</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2013.10.015" target="_blank" >10.1016/j.cattod.2013.10.015</a>

Result language
angličtina
Original language name
Selective synthesis of linear alkylbenzene by alkylation of benzene with 1-dodecene over desilicated zeolites
Original language description
The alkylation of benzene with 1-dodecene to linear alkylbenzenes (LAB) was investigated over 12-ring zeolites MOR, BEA, and FAU with varying framework topologies and Si/Alratios. The reaction was carried out under a high-pressure, 20 bar, in a fixed-bedflow reactor at 140 degrees C, using WHSV 4 h-1, benzene/1 dodecene molar ratio of 6.0 and time-on-stream of 6.0 h. In contrast to MOR and BEA zeolites, FAU exhibited the lowest selectivity (24%) to the desired 2-phenyl dodecane (2-LAB) due to its largecavities. The MOR and BEA with different Si/Alratios were further desilicated using alkali-metal treatments (0.2 M and 0.05 M NaOH) to create hierarchical porous structure. The desilication of both zeolites improved the conversion of 1-dodecene and theselectivity to 2-LAB. The excellent stability resulting from desilication is attributed to a better diffusivity of the LAB isomers, shortening of real contact time, due to the enhanced mesporous structure in both zeolites and the higher L
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/GBP106%2F12%2FG015" target="_blank" >GBP106/12/G015: Intelligent design of nanoporous adsorbents and catalysts</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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