Method and system for extracting hydrocarbon fuel products from plastic material
US7048832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2002 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jun 7, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method and system for extracting hydrocarbon fuel products from plastic material provides extraction of usable fuel components from waste plastic materials. The materials (or hydrocarbon portion thereof) are liquified and introduced to a chamber where the liquid material is agitated and a negative relative pressure (vacuum) is applied. The liquid is maintained at a substantially constant temperature and the vacuum draws the off-gas hydrocarbon products out for condensation and further processing, while unconverted char is removed to an ash dump. An auger feed unit with agitator buckets is used to propel the char through a feed while agitating the liquid to enhance the rate of gas removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.