Patents
US 11535515 B2: Sulfur recovery within a gas processing system
- Granted
- 2022-12-27
- Filed
- 2020-08-04 application 16984463
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method for recovering sulfur within a gas processing system is described herein. The method includes contacting a natural gas stream including an acid gas with a solvent stream within a co-current contacting system to produce a sweetened natural gas stream and a rich solvent stream including an absorbed acid gas. The method also includes removing the absorbed acid gas from the rich solvent stream within a regenerator to produce a concentrated acid gas stream and a lean solvent stream. The method further includes recovering elemental sulfur from hydrogen sulfide (H2S) within the concentrated acid gas stream via a sulfur recovery unit.
Source: PVGPATDIS, file of 2026-04-10 (ipg221227.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| EXXONMOBIL UPSTREAM RESEARCH COMPANY 1,118 patents | US company or organization | Spring, TX | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Paul Scott Northrop | Spring, TX | 26 | PVGPATDIS, file of 2026-04-10 | |
| John Cullinane | Leonidas, TX | 12 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D53/1468 | PVGPATDIS, file of 2026-04-10 |
| C01B | Non-metallic elements; compounds thereof; ; metalloids or compounds thereof not covered by subclass c01c | C01B17/05 | PVGPATDIS, file of 2026-04-10 |
| C10L | Fuels not otherwise provided for; natural gas; synthetic natural gas obtained by processes not covered by subclasses c10g or c10k; liquified petroleum gas; use of additives to fuels or fires; fire-lighters | C10L3/103 | PVGPATDIS, file of 2026-04-10 |
| C12P | Fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture | C12P3/00 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-05-26 | Merger Merger | EXXONMOBIL UPSTREAM RESEARCH COMPANY signed 2022-12-12 | EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY SPRING, TX | 63772/88 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
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.