WO1997011028B1 - Process for the high pressure degassing of hydrogen sulfide from liquid sulfur - Google Patents
Process for the high pressure degassing of hydrogen sulfide from liquid sulfurInfo
- Publication number
- WO1997011028B1 WO1997011028B1 PCT/US1996/014050 US9614050W WO9711028B1 WO 1997011028 B1 WO1997011028 B1 WO 1997011028B1 US 9614050 W US9614050 W US 9614050W WO 9711028 B1 WO9711028 B1 WO 9711028B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- accordance
- hydrogen sulfide
- liquid sulfur
- stream
- vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Abstract
Disclosed is a process for degassing liquid sulfur under pressure. A stream of liquid sulfur containing polysulfides and hydrogen sulfide and a stream of an oxidizing gas are introduced into a vessel and intimately mixed to provide intimate contact between the two streams. The streams are passed through the vessel at a pressure of at least about 40 psig and at a temperature and for a residence time sufficient to remove substantially all of the polysulfides and hydrogen sulfide from the liquid sulfur.
Claims
1. A process for degassing liquid sulfur containing polysulfides and hydrogen sulfide comprising the steps of: introducing under pressure a stream of liquid sulfur containing polysulfides and hydrogen sulfide and a stream of an oxidizing gas into a vessel; mixing the liquid stream and the gas stream to provide intimate contact between the two streams; passing the two streams while in intimate contact with one another through the vessel while maintaining a pressure of at least about 40 psig, at a temperature and for a treatment time sufficient to remove substantially all of the polysulfides and hydrogen sulfide from the liquid sulfur and to produce a stream of degassed liquid sulfur and a stream of gas; and discharging the thus degassed liquid sulfur from the vessel.
2. A process in accordance with claim 1 wherein the streams are intimately mixed with a gas/liquid contacting device.
3. A process in accordance with claim 1 further comprising the vessel contains a catalyst for promoting the oxidation of the polysulfides and hydrogen sulfide to elemental sulfur.
4. A process in accordance with claim 3 wherein the catalyst is a Claus or Claus-like catalyst.
5. A process in accordance with claim 4 wherein the catalyst is titanium dioxide or Selectox. 18
6. A process in accordance with claim 1 wherein the oxidizing gas is air or oxygen-enriched air.
7. A process in accordance with claim 6 wherein the liquid sulfur and the air streams are introduced under a pressure of at least about 55 to about 75 psig.
8. A process in accordance with claim 7 wherein the liquid sulfur and the air streams are introduced under a pressure of from about 60 to about 65 psig.
9. A process in accordance with claim 6 wherein the temperature is from about 265° F to about 285°F.
10. A process in accordance with claim 9 wherein the temperature is about 280° F.
11. A process in accordance with claim 6 wherein the treatment time is less than about thirty minutes .
12. A process in accordance with claim 11 wherein the treatment time is from about five to about twenty minutes.
13. A process in accordance with claim 6 wherein the liquid sulfur stream and the oxidizing gas stream are passed counter-currently, co-currently or in a cross flow.
14. A process in accordance with claim 6 wherein the degassed liquid sulfur has a total hydrogen sulfide content of less than about 30 ppmw. 19
15. A process in accordance with claim 6 wherein the degassed liquid sulfur has a total hydrogen sulfide content of less than about 10 pp w.
16. A process in accordance with claim 1 further comprising introducing a catalyst for promoting the decomposition of polysulfides into hydrogen sulfide along with at least one of the streams.
17. A process in accordance with claim 16 wherein the catalyst is selected from ammonia, ammonium thiosulfate, urea, morpholine, an alkanol amine and mixtures thereof.
18. A process for degassing liquid sulfur containing polysulfides and hydrogen sulfide comprising the steps of: introducing under pressure a stream of liquid sulfur containing polysulfides and hydrogen sulfide and a stream of air, oxygen-enriched air, sulfur dioxide or sulfur dioxide-enriched gas into a vessel containing a static mixing device for intimately mixing the two streams and a catalyst for promoting the oxidation of the polysulfides and hydrogen sulfide to elemental sulfur; passing the streams through the static mixing device counter-currently, co-currently, or in a cross flow while maintaining a pressure of from about 55 to about 75 psig and at a temperature from about 265° F to about 285°F and for a treatment time less than about thirty minutes to produce a degassed liquid sulfur stream containing less than about 10 ppmw total hydrogen sulfide content; and discharging the thus degassed liquid sulfur from the vessel. 20
19. A process in accordance with claim 18 wherein the catalyst is a bed of Claus or Claus-type catalyst.
20. A process in accordance with claim 19 wherein the catalyst is a bed of titanium dioxide or
Selectox.
21. A process in accordance with claim 18 wherein the oxidizing gas is air or oxygen-enriched air.
22. A process in accordance with claim 21 wherein the liquid sulfur and the air streams are introduced under a pressure of at least about 40 psig.
23. A process in accordance with claim 22 wherein the liquid sulfur and the air streams are introduced under a pressure of from about 55 to about 75 psig.
24. A process in accordance with claim 18 wherein the temperature is from about 265° F to about 285° F.
25. A process in accordance with claim 24 wherein the temperature is about 280° F.
26. A process in accordance with claim 21 wherein the treatment time is less than about thirty minutes .
27. A process in accordance with claim 26 wherein the treatment time is from about five to about twenty minutes.
28. A process in accordance with claim 21 wherein the liquid sulfur stream and the oxidizing gas 21 stream are passed counter-currently through the static mixing device.
29. A process in accordance with claim 21 wherein the degassed liquid sulfur has a total hydrogen sulfide content of less than about 30 ppmw.
30. A process in accordance with claim 21 wherein the degassed liquid sulfur has a total hydrogen sulfide content of less than about 10 ppmw.
31. A process in accordance with claim 18 further comprising introducing along with at least one of the streams a catalyst for promoting the decomposition of polysulfides into hydrogen sulfide.
32. A process in accordance with claim 31 wherein the catalyst is selected from ammonia, ammonium thiosulfate, urea, morpholine, alkanol amines, and mixtures thereof.
33. A process for degassing liquid sulfur containing polysulfides and hydrogen sulfide comprising the steps of: introducing under pressure a stream of liquid sulfur containing polysulfides and hydrogen sulfide and a stream of an oxidizing gas into a vessel containing a static mixing device and a bed of a Claus or Claus-type catalyst; counter-currently passing the streams through the static mixing device while maintaining a pressure of from about 65 to about 75 psig, and at a temperature from about 265° F to about 285° F, for a treatment time of from about 5 to about 20 minutes to produce a degassed liquid sulfur stream containing less than about 30 ppmw 22 total hydrogen sulfide content; and a stream of gas discharging the thus degassed liquid sulfur from the vessel.
34. A process in accordance with claim 33 wherein the catalyst is titanium dioxide or Selectox.
35. A process in accordance with claim 1, further comprising the gas stream is discharged from the vessel at a pressure of from about 50 psig to about 75 psig.
36. A process in accordance with claim 18, further comprising the gas stream is discharged from the vessel at a pressure of from about 50 psig to about 75 psig.
37. A process in accordance with claim 33, further comprising the gas stream is discharged from the vessel at a pressure of from about 50 psig to about 75 psig.
38. A process in accordance with claim 1, further comprising the gas stream is discharged from the vessel and then combined with hydrogen sulfide containing gases in a sulfur recovery unit.
39. A process in accordance with claim 18, further comprising the gas stream is discharged from the vessel and then combined with hydrogen sulfide containing gases in a sulfur recovery unit.
40. A process in accordance with claim 33, further comprising the gas stream is discharged from the vessel and then combined with hydrogen sulfide containing gases in a sulfur recovery unit.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE69606186T DE69606186T2 (en) | 1995-09-19 | 1996-09-03 | METHOD FOR THE REMOVAL OF SULFUR HYDROGEN FROM LIQUID SULFUR BY MEANS OF HIGH PRESSURE DEGASSING |
| CA002232629A CA2232629C (en) | 1995-09-19 | 1996-09-03 | Process for the high pressure degassing of hydrogen sulfide from liquid sulfur |
| EP96929852A EP0851836B1 (en) | 1995-09-19 | 1996-09-03 | Process for the high pressure degassing of hydrogen sulfide from liquid sulfur |
| AU69105/96A AU6910596A (en) | 1995-09-19 | 1996-09-03 | Process for the high pressure degassing of hydrogen sulfide from liquid sulfur |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US531,186 | 1995-09-19 | ||
| US08/531,186 US5632967A (en) | 1995-09-19 | 1995-09-19 | Process for the high pressure degassing of hydrogen sulfide from liquid sulfur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1997011028A1 WO1997011028A1 (en) | 1997-03-27 |
| WO1997011028B1 true WO1997011028B1 (en) | 1997-04-17 |
Family
ID=24116612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1996/014050 Ceased WO1997011028A1 (en) | 1995-09-19 | 1996-09-03 | Process for the high pressure degassing of hydrogen sulfide from liquid sulfur |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5632967A (en) |
| EP (1) | EP0851836B1 (en) |
| AU (1) | AU6910596A (en) |
| CA (1) | CA2232629C (en) |
| DE (1) | DE69606186T2 (en) |
| ES (1) | ES2140893T3 (en) |
| WO (1) | WO1997011028A1 (en) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5935548A (en) * | 1998-03-11 | 1999-08-10 | Black & Veatch Pritchard, Inc. | Method for removing hydrogen sulfide from molten sulfur |
| US6569398B2 (en) * | 2001-04-30 | 2003-05-27 | Gaa Engineered Systems, Inc. | Method for treating hydrogen sulfide-containing waste gases |
| US7393513B2 (en) * | 2003-06-02 | 2008-07-01 | S&B Engineers And Constructors, Ltd. | System and process for treating sulfur |
| US7081233B2 (en) * | 2004-05-18 | 2006-07-25 | Dynamax Engineering Ltd. | Method and apparatus for degassing liquid sulfur |
| CN102227372B (en) | 2008-11-28 | 2014-12-24 | 国际壳牌研究有限公司 | Process for selective oxidation of hydrogen sulphide |
| US7927577B2 (en) * | 2009-01-12 | 2011-04-19 | Worleyparsons Group, Inc. | Sulfur collection systems and processes with integrated degassing |
| US8084013B2 (en) * | 2009-07-22 | 2011-12-27 | Kps Technology & Engineering Llc | Method and apparatus for degasification of claus-derived sulfur |
| DE102010004062A1 (en) | 2010-01-05 | 2011-07-07 | Sterzel, Hans-Josef, Dr., 67125 | Sulfur made from the Claus process comprising elevated portions of polysulfanes and hydrogen sulfide, useful as heat transfer- and heat storage-liquid |
| US8663596B2 (en) * | 2010-01-25 | 2014-03-04 | Fluor Enterprises, Inc. | Reactor, a structure packing, and a method for improving oxidation of hydrogen sulfide or polysulfides in liquid sulfur |
| US8361432B2 (en) * | 2010-12-08 | 2013-01-29 | Fluor Enterprises, Inc. | Reactor, a retained catalyst structure, and a method for improving decomposition of polysulfides and removal of hydrogen sulfide in liquid sulfur |
| RU2014101632A (en) | 2011-06-21 | 2015-07-27 | Якобс Недерланд Б.В. | CATALYTIC DEGASATION OF SULFUR |
| US8679448B2 (en) | 2011-09-21 | 2014-03-25 | Fluor Technologies Corporation | Configurations and methods of treatment of sulfur-containing vent gases |
| ES2539368T3 (en) * | 2011-12-23 | 2015-06-30 | Air Liquide Global E&C Solutions Germany Gmbh | Procedure and device for degassing liquid sulfur |
| US9370745B2 (en) | 2013-04-24 | 2016-06-21 | Jiangsu New Century Jiangnan Environmental Protection Co., Ltd | Flue gas-treating method and apparatus for treating acidic tail gas by using ammonia process |
| US9192887B2 (en) * | 2013-06-21 | 2015-11-24 | Phillips 66 Company | Process for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from claus sulfur recovery |
| WO2016077746A1 (en) * | 2014-11-14 | 2016-05-19 | Controls Southeast, Inc. | Degassing system and device for degassing liquid sulfur |
| EP3268309B1 (en) * | 2015-03-11 | 2020-02-05 | WorleyParsons Europe Ltd. | High efficiency process for degassing of hydrogen sulfide from liquid sulfur |
| EP3359271B1 (en) * | 2015-10-05 | 2021-07-21 | Fluor Technologies Corporation | Systems and methods for degassing of sulfur |
| CN106915727B (en) * | 2015-12-24 | 2019-03-15 | 中国石油天然气股份有限公司 | A liquid sulfur degassing process |
| CN108144428A (en) | 2017-03-15 | 2018-06-12 | 江苏新世纪江南环保股份有限公司 | A kind of method and device of ammonia process efficient removal gas sulphur oxide and dirt |
| CN107213785B (en) | 2017-05-25 | 2020-08-07 | 江苏新世纪江南环保股份有限公司 | Method and device for denitration, desulfurization and dust removal of FCC (fluid catalytic cracking) tail gas by ammonia process |
| CN107213769B (en) | 2017-05-25 | 2019-09-20 | 江苏新世纪江南环保股份有限公司 | A kind of ammonia method desulfurizing method and device of locellus ammonification |
| CL2017001700A1 (en) | 2017-06-14 | 2018-04-20 | Jiangnan Environmental Prot Group Inc | System and method for adding ammonia automatically for an ammonia-based desulfurization device. |
| CN107213770B (en) | 2017-07-03 | 2023-03-17 | 江苏新世纪江南环保股份有限公司 | Ammonia desulphurization absorption tower and establishing method and operation method thereof |
| US10307695B2 (en) | 2017-08-22 | 2019-06-04 | Strom W. Smith | Degassing system and tower for sulfur process |
| CN108722163B (en) | 2017-09-07 | 2019-06-07 | 江苏新世纪江南环保股份有限公司 | A kind of method of ammonia desulfurization control aerosol generation in absorption process |
| CN110368816A (en) | 2018-04-13 | 2019-10-25 | 江苏新世纪江南环保股份有限公司 | Oxidation method and device for ammonia desulphurization solution |
| CN110732227B (en) | 2018-07-20 | 2023-02-21 | 江南环保集团股份有限公司 | Method and device for treating acid gas |
| US10836637B2 (en) | 2018-07-31 | 2020-11-17 | Controls Southeast, Inc. | Contactor apparatus and method of use |
| US10793434B2 (en) | 2019-01-25 | 2020-10-06 | Strom W. Smith | System for hydrogen sulfide destruction and sulfur recovery |
| US11713246B2 (en) * | 2019-03-15 | 2023-08-01 | Fluor Technologies Corporation | Liquid sulfur degassing |
| CN114870579A (en) | 2022-05-16 | 2022-08-09 | 江苏新世纪江南环保股份有限公司 | Method and device for recovering waste heat of ammonia desulphurization and decarbonization system |
| CN111957183A (en) | 2019-12-26 | 2020-11-20 | 江苏新世纪江南环保股份有限公司 | Improved ammonia desulphurization method for controlling aerosol generation in absorption process |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA964040A (en) * | 1971-04-30 | 1975-03-11 | Reginald S. Anderson | Removal of h2sx from molten sulfur |
| NL173735C (en) * | 1972-05-24 | 1988-06-16 | Shell Int Research | METHOD FOR REMOVING HYDROGEN SULFIDE FROM MOLED SULFUR. |
| JPS567966B2 (en) * | 1973-07-16 | 1981-02-20 | ||
| CA1088276A (en) * | 1976-08-02 | 1980-10-28 | Paul T. Pendergraft | Process for removal of hydrogen sulfide and hydrogen polysulfide from liquid sulfur |
| CA1142326A (en) * | 1979-12-11 | 1983-03-08 | Hudson's Bay Oil And Gas Company Limited | High pressure process for recovery of sulphur from gases |
| CA1172428A (en) * | 1980-10-21 | 1984-08-14 | Hudson's Bay Oil And Gas Company Limited | Process for reacting hydrogen sulphide with oxygen |
| DE3143400A1 (en) * | 1981-11-02 | 1983-06-01 | Mobil Oil Corp., 10017 New York, N.Y. | METHOD FOR REDUCING THE SULFUR CONTENT IN GAS FLOWS WITH ELEMENTAL SULFUR |
| US4844720A (en) * | 1982-04-02 | 1989-07-04 | Amoco Corporation | Process for removal of hydrogen sulfide and hydrogen polysulfide from liquid sulfur |
| US4537605A (en) * | 1982-07-16 | 1985-08-27 | Chevron Research Company | Removal of hydrogen sulfide from elemental sulfur by a countercurrent wet steam process |
| US4729887A (en) * | 1985-08-16 | 1988-03-08 | Amoco Corporation | Process and apparatus for degassing sulfur |
| FR2601350B1 (en) * | 1986-07-10 | 1988-09-30 | Elf Aquitaine | PROCESS FOR THE RAPID REMOVAL OF SULFURATED HYDROGEN CONTAINED IN LIQUID SULFUR AND CATALYST SYSTEM FOR USE IN ITS IMPLEMENTATION |
| JPS6335407A (en) * | 1986-07-28 | 1988-02-16 | Jgc Corp | Purification of liquid sulfur |
| US4755372A (en) * | 1987-04-29 | 1988-07-05 | Shell Oil Company | Catalytic sulfur degassing |
| JPH09504502A (en) * | 1993-09-01 | 1997-05-06 | アポロ エンヴァイアランメンタル システムズ コーポレーション | Degassing liquid sulfur |
-
1995
- 1995-09-19 US US08/531,186 patent/US5632967A/en not_active Expired - Lifetime
-
1996
- 1996-09-03 AU AU69105/96A patent/AU6910596A/en not_active Abandoned
- 1996-09-03 ES ES96929852T patent/ES2140893T3/en not_active Expired - Lifetime
- 1996-09-03 DE DE69606186T patent/DE69606186T2/en not_active Expired - Lifetime
- 1996-09-03 EP EP96929852A patent/EP0851836B1/en not_active Expired - Lifetime
- 1996-09-03 CA CA002232629A patent/CA2232629C/en not_active Expired - Lifetime
- 1996-09-03 WO PCT/US1996/014050 patent/WO1997011028A1/en not_active Ceased
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