Structured packing module for mass transfer columns
US11014064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2018 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Nov 3, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/3284
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cross-corrugated structured packing element is provided for use in mass transfer or heat exchange columns. The packing element has a plurality of packing layers positioned in an upright, parallel relationship to each other and including corrugations formed of alternating peaks and valleys and corrugation sidewalls extending between the peaks and valleys. The packing element also includes a plurality of apertures each presenting an open area. The apertures are distributed such that the corrugation sidewalls have a greater density of open areas than any density of the open areas that may be present in the peaks and valleys. Some of the apertures may be present in the peaks and the valleys to facilitate liquid distribution. The apertures may also be placed in rows or other patterns that are aligned in a direction along a longitudinal length of the corrugations. Regions with a larger apex radius may be formed in the peaks, such as by depressing spaced-apart segments of the peaks to form spacers in the undepressed portions of the peaks. Some of the apertures may be positioned in the transitions from the depressed portions of the peaks to the unmodified apex sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.