C01B 17/0439
At least one catalyst bed operating below the dew-point of sulfur
Official title: {at least one catalyst bed operating below the dew-point of sulfur}
C01B17/0439 (At least one catalyst bed operating below the dew-point of sulfur) appears on 40 US grants and 15 published applications in this corpus.
Search patents in C01B- Granted patents
- 40
- Published applications
- 15
- Assignees
- 22
- Inventors
- 55
- Latest grant
- 23 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 6 |
| 2015 | 3 | 0 |
| 2016 | 0 | 1 |
| 2017 | 3 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Sulfur recovery by solidifying sulfur on reactor catalyst23 May 2023US 11,655,149 B1Saudi Arabian Oil Company
- Methods and systems of sub-dew point sulfur recovery with interstage membrane units20 Dec 2022US 11,530,131 B1Saudi Arabian Oil Company
- System for hydrogen sulfide destruction and sulfur recovery6 Oct 2020US 10,793,434 B2
- Methods for SO2 recoveries from sulfur plants23 Jun 2020US 10,689,254 B1
- Apparatus for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from Claus sulfur recovery17 Oct 2017US 9,789,433 B2Phillips 66 Company
- Sulfur Recovery by Solidifying Sulfur on Reactor Catalyst4 May 2023US 2023/0139298 A1Saudi Arabian Oil Company
- System for Hydrogen Sulfide Destruction and Sulfur Recovery30 Jul 2020US 2020/0239310 A1
- Process for removing sulfur compounds from a gas with hydrogenation and direct oxidation steps15 Sep 2016US 2016/0263524 A1Prosernat
- Apparatus for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from claus sulfur recovery25 Dec 2014US 2014/0374069 A1Phillips 66 Company
- Apparatus for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from claus sulfur recovery25 Dec 2014US 2014/0374070 A1Phillips 66 Company
Most cited
By later US patents
- CBA for Claus tail gas cleanup34US 4,035,474 AStandard Oil Company (Indiana) · 1977
- Method for removal of sulfur deposited on a Claus catalyst21US 4,180,554 AStandard Oil Company (Indiana) · 1979
- Process for producing and recovering elemental sulfur from acid gas21US 4,507,275 AStandard Oil Company (Indiana) · 1985
- Recovery of elemental sulfur from sour gas16US 4,462,977 AStandard Oil Company (Indiana) · 1984
- Increased capacity sulfur recovery plant and process for recovering elemental sulfur16US 7,501,111 B2Conoco Phillips Company · 2009