Production of polyethylene and ethylene oligomers from ethanol and the use of biomass and waste streams as feedstocks to produce the ethanol
US12077616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2021 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Aug 31, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/145
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Processes for producing ethylene-based polymers and oligomers from ethanol include the steps of contacting the ethanol and a catalyst to produce a reaction mixture containing ethylene, wherein a first portion of the ethanol is derived from a biomass and a second portion of the ethanol is derived from a plastic, a mixed solid waste stream, or a combination thereof, separating at least a portion of the ethylene from the reaction mixture, and contacting ethylene with a suitable polymerization or oligomerization catalyst composition to produce the ethylene polymer or ethylene oligomers. A related process for producing ethylene-based polymers and oligomers uses a first ethylene feed derived from ethanol and a second ethylene feed derived from a plastic, a mixed solid waste stream, or a combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.