Patents
US 11668524 B2: Methods for removal of moisture from LNG refrigerant
- Granted
- 2023-06-06
- Filed
- 2020-01-06 application 16735024
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Methods and systems for removing moisture from a refrigerant can utilize a desiccant-based system. The methods and systems can be employed in conjunction with a liquid natural gas (LNG) refrigeration circuit in either an online mode or an offline mode. For example, a system for removing moisture from a refrigerant can include: a refrigerant source; a moisture removal unit containing desiccant; and a refrigeration circuit comprising a refrigerant compressor, a refrigerant condenser, and a heat exchanger that are fluidly connected in a loop, wherein the refrigerant source is fluidly coupled to the moisture removal unit to supply a refrigerant from the refrigerant source to the moisture removal unit, and the moisture removal unit is fluidly coupled to the refrigeration circuit to supply the refrigerant from the moisture removal unit to the refrigeration circuit.
Source: PVGPATDIS, file of 2026-04-10 (ipg230606.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 |
|---|---|---|---|---|
| Daryl A. Kenefake | The Woodlands, TX | 2 | PVGPATDIS, file of 2026-04-10 | |
| Jeffrey Tatarzyn | Spring, TX | 2 | PVGPATDIS, file of 2026-04-10 | |
| Waleed H. Ahmed | Spring, TX | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F25J | Liquefaction, solidification or separation of gases or gaseous ; or liquefied gaseous; mixtures by pressure and cold treatment ; or by bringing them into the supercritical state | F25J1/0022 | PVGPATDIS, file of 2026-04-10 |
| B01D | Separation | B01D53/04 | PVGPATDIS, file of 2026-04-10 |
| F25B | Refrigeration machines, plants or systems; combined heating and refrigeration systems; heat pump systems | F25B45/00 | 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.