Performance of Nanosponge and Nanosheet Al- and Ga-MFI Zeolites in Catalytic Pyrolysis of Biomass and Plastics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10470991" target="_blank" >RIV/00216208:11310/23:10470991 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ffZteeVfEB" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ffZteeVfEB</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acssuschemeng.3c00413" target="_blank" >10.1021/acssuschemeng.3c00413</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Performance of Nanosponge and Nanosheet Al- and Ga-MFI Zeolites in Catalytic Pyrolysis of Biomass and Plastics

Popis výsledku v původním jazyce

MFI zeolitic materials in the form of nanosponges (nSP) and nanosheets (nSH) have been synthesized incorporating Al and Ga into the framework. Characterization of the samples by Ar adsorption-desorption and FTIR/pyridine indicates that they present remarkable differences in terms of accessibility (external/ mesopore surface area) and acidity (ratio between the concentration of Bronsted and Lewis acid sites). These materials have been investigated as catalysts in the pyrolysis of low-density polyethylene (LDPE) and lignocellulose (oak wood). In spite of very different reaction conditions and operation modes, some common results have been observed when comparing the catalytic performance of the Al- and Ga-MFI samples in both reactions. Nanosponge zeolites show superior cracking and deoxygenation activity during the catalytic conversion of LDPE and oak wood, respectively. On the other hand, Ga-containing materials favor the occurrence of dehydrogenation reactions due to their relatively high content of Lewis acid sites followed by the enhanced production of aromatic hydrocarbons. Overall, the Ga-MFI-nSP sample exhibits remarkable catalytic properties due to a suitable combination of accessibility and acid properties, the latter arising from the Ga incorporation into the zeolite framework.

Název v anglickém jazyce

Performance of Nanosponge and Nanosheet Al- and Ga-MFI Zeolites in Catalytic Pyrolysis of Biomass and Plastics

Popis výsledku anglicky

MFI zeolitic materials in the form of nanosponges (nSP) and nanosheets (nSH) have been synthesized incorporating Al and Ga into the framework. Characterization of the samples by Ar adsorption-desorption and FTIR/pyridine indicates that they present remarkable differences in terms of accessibility (external/ mesopore surface area) and acidity (ratio between the concentration of Bronsted and Lewis acid sites). These materials have been investigated as catalysts in the pyrolysis of low-density polyethylene (LDPE) and lignocellulose (oak wood). In spite of very different reaction conditions and operation modes, some common results have been observed when comparing the catalytic performance of the Al- and Ga-MFI samples in both reactions. Nanosponge zeolites show superior cracking and deoxygenation activity during the catalytic conversion of LDPE and oak wood, respectively. On the other hand, Ga-containing materials favor the occurrence of dehydrogenation reactions due to their relatively high content of Lewis acid sites followed by the enhanced production of aromatic hydrocarbons. Overall, the Ga-MFI-nSP sample exhibits remarkable catalytic properties due to a suitable combination of accessibility and acid properties, the latter arising from the Ga incorporation into the zeolite framework.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

ACS Sustainable Chemistry &amp; Engineering

ISSN

2168-0485

e-ISSN

2168-0485

Svazek periodika

11

Číslo periodika v rámci svazku

35

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

12868-12876

Kód UT WoS článku

001054092100001

EID výsledku v databázi Scopus

2-s2.0-85170053768