Superheated water extraction with counterpressure system and method thereof
US10870069B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Dec 29, 2017 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Sep 27, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D11/0292
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention discloses an apparatus for extraction of constituents with extraction fluid present in a substance by means of an extraction fluid constituted by a water heated to high temperature known as super-heated water (SHW). According to this invention, in the heater the water is heated to a subcritical point and introduced to the extractor contacting takes place between the substance and the extraction fluid to dissolve the constituents in the fluid. The fluid leaving the extractor is then cooled in a cooler. The process is performed under constant counter pressure given by a Nitrogen tank. Separation of the volatile components is done in one or multistage countercurrent liquid-liquid system with any volatile solvent with proper solubility of the constituents or in a distillation column. distillation column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.