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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10406 - Analytical chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

TALANTA

ISSN

0039-9140

e-ISSN

1873-3573

Volume of the periodical

281

Issue of the periodical within the volume

1st January

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

126792

UT code for WoS article

001309455400001

EID of the result in the Scopus database

2-s2.0-85203133238