Microstructure designs for optimizing mixing and pressure drop
US7753580B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Jun 13, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S366/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A class of designs is provided for a mixer in micro reactors where the design principle includes at least one injection zone in a continuous flow path where at least two fluids achieve initial upstream contact and an effective mixing zone (i.e. adequate flow of fluids and optimal pressure drop) containing a series of mixer elements in the path. Each mixer element is preferably designed with a chamber at each end in which an obstacle is placed (thereby reducing the typical inner dimension of the chamber) and with optional restrictions in the channel segments. The obstacles are preferably cylindrical pillars but can have any geometry within a range of dimensions and may be in series or parallel along the flow path to provide the desired flow-rate, mixing and pressure-drop. The injection zone may have two or more interfaces and may include one or more cores to control fluids before mixing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.