F25J 2205/50
Processes or apparatus using other separation and/or other processing means: using absorption
Official title: using absorption, i.e. with selective solvents or lean oil, heavier CnHm and including generally a regeneration step for the solvent or lean oil
F25J2205/50 (Processes or apparatus using other separation and/or other processing means: using absorption) appears on 199 US grants and 182 published applications in this corpus.
Search patents in F25J- Granted patents
- 199
- Published applications
- 182
- Assignees
- 108
- Inventors
- 419
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 2 |
| 2004 | 3 | 3 |
| 2005 | 0 | 2 |
| 2006 | 2 | 6 |
| 2007 | 1 | 2 |
| 2008 | 4 | 5 |
| 2009 | 2 | 5 |
| 2010 | 0 | 7 |
| 2011 | 3 | 5 |
| 2012 | 2 | 16 |
| 2013 | 6 | 6 |
| 2014 | 3 | 11 |
| 2015 | 6 | 6 |
| 2016 | 3 | 5 |
| 2017 | 3 | 12 |
| 2018 | 5 | 9 |
| 2019 | 10 | 24 |
| 2020 | 2 | 8 |
| 2021 | 10 | 11 |
| 2022 | 18 | 10 |
| 2023 | 8 | 9 |
| 2024 | 11 | 6 |
| 2025 | 8 | 4 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for treating a gas stream from plastic pyrolisis and/or biomass pyrolisis, and installation for integration into a steam cracker11 Aug 2026US 12,703,671 B2Technip Energies France
- Removing heavy hydrocarbons to prevent defrost shutdowns in LNG plants31 Mar 2026US 12,590,759 B2Cheniere Energy, Inc.
- Process and apparatus for heavy hydrocarbon removal from lean natural gas before liquefaction10 Mar 2026US 12,571,585 B2Lummus Technology Inc.
- Carbon dioxide recovery device22 Jul 2025US 12,364,950 B2National University Corporation Tokai National Higher Education and Research System
- Phase implementation of natural gas liquid recovery plants3 Jun 2025US 12,320,587 B2Fluor Technologies Corporation
- Cryogenic process for helium recovery from low helium-containing gas stream24 Sep 2026US 2026/0287252 A1Council of Scientific and Industrial Research
- Configurations and methods for ngl recovery for high nitrogen content feed gases13 Aug 2026US 2026/0235354 A1Fluor Technologies Corporation
- Carbon dioxide recovery system and carbon dioxide recovery method18 Jun 2026US 2026/0166471 A1Mitsubishi Heavy Industries, Ltd.
- Methods and systems for natural gas purification integrated with gas compression16 Apr 2026US 2026/0104199 A1Valence Natural Gas Solutions LLC
- Method of Hydrogen Liquefaction Using Optimized Claude Refrigeration Cycles2 Apr 2026US 2026/0092734 A1Evergreen Cryogenics Inc.
Most cited
By later US patents
- Clean air engines transportation and other power applications153US 5,680,764 AClean Energy Systems, Inc. · 1997
- Distillative separations of gas mixtures containing methane, carbon dioxide and other components129US 4,462,814 AKoch Process Systems, Inc. · 1984
- Cryogenic distillative separation of acid gases from methane111US 4,318,723 AKoch Process Systems, Inc. · 1982
- Multi-component refrigeration process for liquefaction of natural gas100US 5,950,453 AExxon Production Research Company · 1999
- Absorption process without external solvent97US 5,462,583 AAdvanced Extraction Technologies, Inc. · 1995