Selective production of xylenes from alkyl-aromatics and heavy reformates over dual-zeolite catalyst

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00454737" target="_blank" >RIV/61388955:_____/15:00454737 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cattod.2014.08.002" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2014.08.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cattod.2014.08.002" target="_blank" >10.1016/j.cattod.2014.08.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Selective production of xylenes from alkyl-aromatics and heavy reformates over dual-zeolite catalyst

Popis výsledku v původním jazyce

Disproportionation of 1,2,4-trimethylbenzene (1,2,4-TMB), its transalkylation with toluene as well as dealkylation of ethyltoluenes (ETs) over MOR and MFI zeolites were investigated in a fluidized-bed reactor at 300?400 °C. MFI exhibited good ET conversion (60 wt.%), high dealkylation selectivity (60%), but low disproportionation and transalkylation activities. MOR showed high ET conversion (80 wt.%) with low dealkylation selectivity (33%), and high disproportionation and transalkylation activities. Based on these results, a dual-zeolite catalyst consisting of MOR and MFI was proposed to promote the diverse reactions leading to selective production of xylenes via dealkylation?transalkylation of alkylaromatics. Single-zeolite (MOR-based) and dual-zeolite (MOR- and MFI-based) catalysts were prepared by addition of binder, characterized and evaluated for the conversion of C8+ and C9+ heavy reformates (either alone or with the addition of various amounts of toluene). The catalysts exhibite

Název v anglickém jazyce

Selective production of xylenes from alkyl-aromatics and heavy reformates over dual-zeolite catalyst

Popis výsledku anglicky

Disproportionation of 1,2,4-trimethylbenzene (1,2,4-TMB), its transalkylation with toluene as well as dealkylation of ethyltoluenes (ETs) over MOR and MFI zeolites were investigated in a fluidized-bed reactor at 300?400 °C. MFI exhibited good ET conversion (60 wt.%), high dealkylation selectivity (60%), but low disproportionation and transalkylation activities. MOR showed high ET conversion (80 wt.%) with low dealkylation selectivity (33%), and high disproportionation and transalkylation activities. Based on these results, a dual-zeolite catalyst consisting of MOR and MFI was proposed to promote the diverse reactions leading to selective production of xylenes via dealkylation?transalkylation of alkylaromatics. Single-zeolite (MOR-based) and dual-zeolite (MOR- and MFI-based) catalysts were prepared by addition of binder, characterized and evaluated for the conversion of C8+ and C9+ heavy reformates (either alone or with the addition of various amounts of toluene). The catalysts exhibite

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GBP106%2F12%2FG015" target="_blank" >GBP106/12/G015: Vývoj nových nanoporézních adsorbentů a katalyzátorů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

—

Svazek periodika

243

Číslo periodika v rámci svazku

APR 2015

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

118-127

Kód UT WoS článku

000347049900016

EID výsledku v databázi Scopus

2-s2.0-84927564974