Affiliation:
1. Multiscale Reaction Engineering KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
2. Department of Chemical Engineering University of the Basque Country UPV/EHU PO Box 644 48080 Bilbao Spain
3. Department of Chemical and Environmental Engineering University of the Basque Country UPV/EHU Plaza Ingeniero Torres Quevedo 1 48013 Bilbao Spain
4. Chemical Engineering Program Physical Science and Engineering (PSE) Division King Abdullah University of Science and Technology
Abstract
AbstractThis work analyzes vacuum gas oil (VGO) and hydrocracking products of this feed blended with polymethylmethacrylate (PMMA) or polyethylene terephthalate (PET) to clarify the oxygen, nitrogen, and sulfur removal pathways in these complex mixtures. Hydrocracking reactions are conducted in a semi‐batch reactor with a Pt−Pd/HY bifunctional catalyst at 400 °C and 80 bar for 300 min with 10 wt % waste plastic using 0.1 catalyst/feed weight ratio. The samples are analyzed using various techniques, including high‐resolution mass spectrometry, providing an improved, more detailed analytical representation. The results demonstrate the synergistic effect of cofeeding oxygenated plastics to the VGO, altering the preferential reaction pathways of heteroatom‐containing species in the following order: nitrogen, oxygen, and sulfur. We assess the nature of the species from the gathered data, establish plausible reaction mechanisms, and evaluate the catalyst's role.
Funder
King Abdullah University of Science and Technology
Eusko Jaurlaritza
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