Patents
US 11572518 B2: Char preparation system and gasifier for all-steam gasification with carbon capture
- Granted
- 2023-02-07
- Filed
- 2020-11-24 application 17103197
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An ASG system for polygeneration with CC includes a devolatilizer that pyrolyzes solid fuel to produce char and gases. A burner adds exothermic heat by high-pressure sub-stoichiometric combustion, a mixing pot causes turbulent flow of the gases to heat received solid fuel, and a riser micronizes resulting friable char. A devolatilizer cyclone separates the micronized char by weight providing micronized char, steam and gases to a gasifier feed and oversized char to the mixing pot. An indirect fluid bed gasifier combustion loop includes a gasifier coupled to the gasifier feed, a steam input to provide oxygen for gasification and to facilitate sand-char separation, and an output for providing syngas. A burner provides POC to a mixing pot which provides hot sand with POC to a POC cyclone via a riser, where the POC cyclone separates sand and POC by weight and provides POC and sand for steam-carbon reaction.
Source: PVGPATDIS, file of 2026-04-10 (ipg230207.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Wormser Energy Solutions, Inc. 7 patents | US company or organization | Lancaster, MA | WORMSER ENERGY SOLUTIONS, INC. Form D issuer EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| Energy & Environmental Research Center 68 patents | US company or organization | Portland, ND | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Douglas M. Todd | Galway, NY | 6 | PVGPATDIS, file of 2026-04-10 | |
| John Parkes | Los Altos, CA | 7 | PVGPATDIS, file of 2026-04-10 | |
| Scott G. Tolbert | Portland, ND | 1 | PVGPATDIS, file of 2026-04-10 | |
| Michael L. Swanson | Portland, ND | 2 | PVGPATDIS, file of 2026-04-10 | |
| Surya B. Reddy Karri | Naperville, IL | 1 | PVGPATDIS, file of 2026-04-10 | |
| Teddy M. Knowlton | Willowbrook, IL | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C10J | Production of producer gas, water-gas, synthesis gas from solid carbonaceous material, or mixtures containing these gases ; carburetting air or other gases | C10J3/56 | PVGPATDIS, file of 2026-04-10 |
| C10B | Destructive distillation of carbonaceous materials for production of gas, coke, tar, or similar materials | C10B49/22 | PVGPATDIS, file of 2026-04-10 |
| C10K | Purifying or modifying the chemical composition of combustible gases containing carbon monoxide | C10K1/005 | PVGPATDIS, file of 2026-04-10 |
| Y02E | Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution | Y02E20/16 | PVGPATDIS, file of 2026-04-10 |
| Y02P | Climate change mitigation technologies in the production or processing of goods | Y02P20/145 | PVGPATDIS, file of 2026-04-10 |
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.