Patents
US 12752256 B2: Microwave regeneration of carbon dioxide sorbents
- Granted
- 2026-10-06
- Filed
- 2023-08-17 application 18235081
- Type
- Utility · 6 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method for regenerating an amine-containing sorbent material useful in CO2 capture, the method comprising exposing an amine-containing sorbent-CO2 complex to microwave radiation to result in release of CO2 and regenerated amine-containing sorbent that is uncomplexed with CO2, wherein the amine-containing sorbent-CO2 complex contains either: (i) a carbamate bond; or (ii) an ion pair bond of the formula wherein Ra, Rb, and Rc are selected from H and hydrocarbon groups containing at least one carbon atom, wherein at least one of Ra, Rb, and Rc is H; Xm− is a carbonate or bicarbonate anion, with m being 1 for bicarbonate and 2 for carbonate; and n is an integer of 1 or 2, provided that n×m=2. The method may also include re-using the regenerated amine-containing sorbent to capture carbon dioxide.
Source: PTBLXML, file of 2026-10-06 (ipgb20261006.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| UT-Battelle, LLC 1,197 patents | US company or organization | Oak Ridge, TN | UT-BATTELLE, LLC State business registration EXACT high confidence: identical full name and state | PTBLXML, file of 2026-10-06 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Gyoung Gug Jang | Knoxville, TN | 5 | PTBLXML, file of 2026-10-06 | |
| Radu Custelcean | Knoxville, TN | 7 | PTBLXML, file of 2026-10-06 | |
| Xin Sun | Knoxville, TN | 63 | PTBLXML, file of 2026-10-06 | |
| Constantinos Tsouris | Oak Ridge, TN | 7 | PTBLXML, file of 2026-10-06 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01J | Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | B01J20/3441 | PTBLXML, file of 2026-10-06 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.