Recycled Plastics in FCC Feedstocks: Specific Contributions
Following a tertiary recycling option for plastics focused on the FCC process, styrene-based polymers were dissolved in benzene and injected over fresh and equilibrium samples of a commercial FCC catalyst. Reaction times were up to 12 s in a discontinuous fluidized bed reactor at 550 °C. The major r...
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| Veröffentlicht in: | Industrial & engineering chemistry research 1997-11, Vol.36 (11), p.4530-4534 |
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| container_title | Industrial & engineering chemistry research |
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| creator | de la Puente, Gabriela Arandes, José M Sedran, Ulises A |
| description | Following a tertiary recycling option for plastics focused on the FCC process, styrene-based polymers were dissolved in benzene and injected over fresh and equilibrium samples of a commercial FCC catalyst. Reaction times were up to 12 s in a discontinuous fluidized bed reactor at 550 °C. The major reaction products were ethylbenzene, benzene, toluene, and styrene, and the production of coke was very significant. A reaction mechanism which includes polymer thermal cracking, surface oligomerization of styrene molecules, and further cracking, in parallel to hydrogen-transfer reactions, was delineated based on the comparison of the catalytic behaviors of the different samples. Increases in the yields of ethylbenzene, styrene, and coke are predictable for the industrial conditions. |
| doi_str_mv | 10.1021/ie970142a |
| format | Article |
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Reaction times were up to 12 s in a discontinuous fluidized bed reactor at 550 °C. The major reaction products were ethylbenzene, benzene, toluene, and styrene, and the production of coke was very significant. A reaction mechanism which includes polymer thermal cracking, surface oligomerization of styrene molecules, and further cracking, in parallel to hydrogen-transfer reactions, was delineated based on the comparison of the catalytic behaviors of the different samples. 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Eng. Chem. Res</addtitle><date>1997-11-01</date><risdate>1997</risdate><volume>36</volume><issue>11</issue><spage>4530</spage><epage>4534</epage><pages>4530-4534</pages><issn>0888-5885</issn><eissn>1520-5045</eissn><coden>IECRED</coden><abstract>Following a tertiary recycling option for plastics focused on the FCC process, styrene-based polymers were dissolved in benzene and injected over fresh and equilibrium samples of a commercial FCC catalyst. Reaction times were up to 12 s in a discontinuous fluidized bed reactor at 550 °C. The major reaction products were ethylbenzene, benzene, toluene, and styrene, and the production of coke was very significant. A reaction mechanism which includes polymer thermal cracking, surface oligomerization of styrene molecules, and further cracking, in parallel to hydrogen-transfer reactions, was delineated based on the comparison of the catalytic behaviors of the different samples. 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| ispartof | Industrial & engineering chemistry research, 1997-11, Vol.36 (11), p.4530-4534 |
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| source | American Chemical Society Journals |
| subjects | 09 BIOMASS FUELS Applied sciences CATALYTIC CRACKING CHEMICAL REACTION KINETICS CHEMICAL REACTION YIELD ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION Exact sciences and technology ISOMERIZATION MUNICIPAL WASTES Other wastes and particular components of wastes PLASTICS Pollution Polymer industry, paints, wood POLYSTYRENE Technology of polymers THERMAL CRACKING Waste treatment Wastes |
| title | Recycled Plastics in FCC Feedstocks: Specific Contributions |
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