B01D 53/1462
Removing mixtures of hydrogen sulfide and carbon dioxide
Official title: {Removing mixtures of hydrogen sulfide and carbon dioxide}
B01D53/1462 (Removing mixtures of hydrogen sulfide and carbon dioxide) appears on 491 US grants and 547 published applications in this corpus.
Search patents in B01D- Granted patents
- 491
- Published applications
- 547
- Assignees
- 210
- Inventors
- 1,050
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 6 |
| 2003 | 5 | 4 |
| 2004 | 4 | 3 |
| 2005 | 2 | 4 |
| 2006 | 1 | 6 |
| 2007 | 3 | 8 |
| 2008 | 4 | 4 |
| 2009 | 6 | 18 |
| 2010 | 11 | 32 |
| 2011 | 5 | 17 |
| 2012 | 14 | 30 |
| 2013 | 27 | 31 |
| 2014 | 14 | 36 |
| 2015 | 17 | 30 |
| 2016 | 29 | 36 |
| 2017 | 36 | 42 |
| 2018 | 34 | 39 |
| 2019 | 40 | 40 |
| 2020 | 33 | 33 |
| 2021 | 24 | 34 |
| 2022 | 28 | 19 |
| 2023 | 27 | 22 |
| 2024 | 24 | 21 |
| 2025 | 17 | 24 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System, apparatus and method for managing heat transfer in post combustion (CO2 and H2S) gas treating systems21 Jul 2026US 12,685,961 B2
- Systems and methods for ammonia recovery, acid gas separation, or combination thereof7 Jul 2026US 12,673,876 B2Innovator Energy, LLC
- Method for upgrading bio-based material and upgraded material26 May 2026US 12,637,623 B2Neste Oyj
- Hot circulation enhancement in amine units5 May 2026US 12,616,933 B2Saudi Arabian Oil Company
- Chemical compositions and methods of using same for remediating sulfur-containing compositions and other contaminants in fluids10 Feb 2026US 12,545,842 B2Gaps Technology, LLC.
- Composite amine absorption liquid1 Oct 2026US 2026/0295512 A1Mitsubishi Heavy Industries, Ltd.
- Method for upgrading bio-based material and upgraded material10 Sep 2026US 2026/0265614 A1Neste Oyj
- Methods and systems for foaming events prediction in gas plants20 Aug 2026US 2026/0244167 A1Saudi Arabian Oil Company
- Acidic gas removal from a post combustion process stream9 Jul 2026US 2026/0192241 A1Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Reducing consumption of sulfiding agent in hydroprocessing of biofeedstocks25 Jun 2026US 2026/0175163 A1ExxonMobil Technology and Engineering Company
Most cited
By later US patents
- Process for the removal of H.sub.2 S and CO.sub.2 from gaseous streams97US 4,091,073 AShell Oil Company · 1978
- CO.sub.2 Removal from high CO.sub.2 content hydrocarbon containing streams96US 4,466,946 AStandard Oil Company (Indiana) · 1984
- Process for removal of contaminants from a gas stream74US 6,506,349 B12003
- Process for separating CO.sub.2 and H.sub.2 S from hydrocarbons71US 4,589,896 AAir Products and Chemicals, Inc. · 1986
- Configurations and methods for claus plant operation with variable sulfur content70US 7,879,135 B2Fluor Technologies Corporation · 2011