Process for stable blend of waste plastic with petroleum feed for feeding to oil refinery units and process of preparing same
US12415958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2023 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Nov 18, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/1003
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a blend of a petroleum feedstock and 1-20 wt. % of plastic, based on the weight of the blend, with the plastic comprising polyethylene and/or polypropylene, and the plastic in the blend comprising finely dispersed microcrystalline particles having an average particle size of 10 micron to less than 100 microns and less than 100 ppm chloride. A process for preparing a blend of plastic and petroleum is provided, comprising mixing together a petroleum feed and a plastic comprising polyethylene and/or polypropylene and heating the mixture in the range of from 550° F. to 700° F. The blend mixture is then hot filtered and then optionally treated with a chloride removal guard bed. The resulting blend can then be cooled and stored or sent directly to a refinery conversion unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.