Quantitative determination of olefins in pyrolysis oils from waste plastics and tires using selective adsorption by Ag-SiO2 followed by GCxGC-FID

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F25%3A43929914" target="_blank" >RIV/60461373:22320/25:43929914 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0039914024011718" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0039914024011718</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.talanta.2024.126792" target="_blank" >10.1016/j.talanta.2024.126792</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Quantitative determination of olefins in pyrolysis oils from waste plastics and tires using selective adsorption by Ag-SiO2 followed by GCxGC-FID

Popis výsledku v původním jazyce

Determination of olefins in pyrolysis oils from waste plastics and tires is crucial for optimizing the pyrolysis process and especially for the further advanced valorization of these oils in terms of the circular economy. Identifying olefins, even using high-resolution techniques like GCxGC, is challenging without TOF-MS, which allows modification of the ionization step. Currently, the only method for determining olefins in plastic pyrolysis oils is GC-VUV, recently standardized as ASTM D8519. However, TOF-MS and VUV are not affordable instruments for many research teams working on plastics recycling. This paper introduces a simple method for the selective micro-scale adsorption of olefins over AgNO3/SiO2, followed by the GCxGC-FID analysis. Olefins are determined indirectly from the loss of chromatographic area in respective hydrocarbon groups before and after removal. Only 50 mu L sample and 15 min of sample separation are needed. Our method was extensively validated and provides a reliable determination of olefin content in a wide range of pyrolysis oils from plastics and tires and their products after mild hydrotreatment. It is affordable to all researchers and industrial companies working on plastics recycling by thermochemical processes as it does not require an MS detector.

Název v anglickém jazyce

Quantitative determination of olefins in pyrolysis oils from waste plastics and tires using selective adsorption by Ag-SiO2 followed by GCxGC-FID

Popis výsledku anglicky

Determination of olefins in pyrolysis oils from waste plastics and tires is crucial for optimizing the pyrolysis process and especially for the further advanced valorization of these oils in terms of the circular economy. Identifying olefins, even using high-resolution techniques like GCxGC, is challenging without TOF-MS, which allows modification of the ionization step. Currently, the only method for determining olefins in plastic pyrolysis oils is GC-VUV, recently standardized as ASTM D8519. However, TOF-MS and VUV are not affordable instruments for many research teams working on plastics recycling. This paper introduces a simple method for the selective micro-scale adsorption of olefins over AgNO3/SiO2, followed by the GCxGC-FID analysis. Olefins are determined indirectly from the loss of chromatographic area in respective hydrocarbon groups before and after removal. Only 50 mu L sample and 15 min of sample separation are needed. Our method was extensively validated and provides a reliable determination of olefin content in a wide range of pyrolysis oils from plastics and tires and their products after mild hydrotreatment. It is affordable to all researchers and industrial companies working on plastics recycling by thermochemical processes as it does not require an MS detector.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

TALANTA

ISSN

0039-9140

e-ISSN

1873-3573

Svazek periodika

281

Číslo periodika v rámci svazku

1st January

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

126792

Kód UT WoS článku

001309455400001

EID výsledku v databázi Scopus

2-s2.0-85203133238