Process for converting plastic feed containing polypropylene to aromatics
US11680209B1 · kind B1 · utility
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15Claims
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Key dates
| Filing date | Dec 13, 2021 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Dec 13, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided for utilizing polypropylene-containing waste plastic. The process provides pyrolyzing a plastic feed in a pyrolysis reactor to obtain a pyrolysis effluent stream. The process further provides passing the pyrolysis effluent stream to a distillation column to obtain a C9 hydrocarbons rich stream which is also dimethylheptenes rich and then passing the C9 hydrocarbons rich stream to a reforming unit to provide a reformate stream. The process further provides passing the reformate stream to a transalkylation unit to provide a mixed-xylenes stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.