Plastic Waste Conversion over a Refinery Waste Catalyst
نویسندگان
چکیده
Polypropylene (PP) makes up a large share of our plastic waste. We investigated the conversion PP over industrial Fluid Catalytic Cracking catalyst (FCC-cat) used to produce gasoline from crude oil fractions. studied transport limitations arising larger size polymers compared oil-based feedstock by testing components this separately. Infrared spectroscopy and confocal fluorescence microscopy revealed role FCC matrix in aromatization, zeolite Y domains coking. An equilibrium (ECAT), discarded during operation as waste, produced same aromatics content fresh FCC-cat, while coking decreased significantly, likely due reduced accessibility activity an enhanced cracking metal deposits present ECAT. This mechanistic understanding provides handles for further improving composition towards higher selectivity.
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ژورنال
عنوان ژورنال: Angewandte Chemie
سال: 2021
ISSN: ['1521-3773', '1433-7851', '0570-0833']
DOI: https://doi.org/10.1002/ange.202104110