Method and apparatus for microwave depolymerization of hydrocarbon feedstocks
US8466332B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2011 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Dec 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus is provided for the continuous microwave depolymerization of high molecular weight organic feedstock material, such as waste plastics and includes intermittent or continuous feeding of the processing material on the surface or into the bulk of the sensitized hot bed located under microwave irradiation. As a result of the interaction of electromagnetic field with processed materials, sensitizer is heated by microwave energy and feedstock material undergoes the depolymerization reactions. The reaction zone can be localized on the surface of the hot bed or distributed in the bulk of the reaction mass depending on the agitation conditions of the reaction mass, such as stirring, or other agitation means, for example by recirculated gas. Products of the reactions are vaporized and transported to the collection system, which may include a combination of a scrubber, a condenser and a settler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.