Dynamic, influent-constituent-based, separator control apparatus and method
US10583374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2016 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Aug 9, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2301/022
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system operating as a centrifugal, liquid-liquid separator may be controlled, and even optimized, by automatic control of back pressure to establish an optimum position of the dispersion band therein. Optimizing to minimize impurities (from each other) in each of two separated phases is possible, even simultaneously, by reliance on a processor setting the settling lengths of both heavy and light phases at the same value. Settling length, defined in accordance with the invention, reflects a settling velocity multiplied by a residence time. Equating these lengths, for droplets of each in the other liquid, provides superior results over conventional settling theory maximizing settling area. Equalization of residence times did not provide an improvement over conventional settling theory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.