WO1994016799B1 - METHOD FOR SOx REMOVAL BY CATALYTIC CARBON - Google Patents
METHOD FOR SOx REMOVAL BY CATALYTIC CARBONInfo
- Publication number
- WO1994016799B1 WO1994016799B1 PCT/US1994/000485 US9400485W WO9416799B1 WO 1994016799 B1 WO1994016799 B1 WO 1994016799B1 US 9400485 W US9400485 W US 9400485W WO 9416799 B1 WO9416799 B1 WO 9416799B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperatures
- carbonaceous char
- oxygen
- char
- nitrogen
- Prior art date
Links
- 229910052815 sulfur oxide Inorganic materials 0.000 title claims abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title 1
- 229910052799 carbon Inorganic materials 0.000 title 1
- 230000003197 catalytic Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract 10
- 239000000463 material Substances 0.000 claims abstract 3
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 3
- 239000001301 oxygen Substances 0.000 claims abstract 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 3
- 239000002802 bituminous coal Substances 0.000 claims abstract 2
- 238000003763 carbonization Methods 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims abstract 2
- -1 nitrogen containing compound Chemical class 0.000 claims abstract 2
- 230000003647 oxidation Effects 0.000 claims abstract 2
- 238000007254 oxidation reaction Methods 0.000 claims abstract 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910001868 water Inorganic materials 0.000 claims abstract 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 3
- 230000004913 activation Effects 0.000 claims 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 1
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract 1
Abstract
An improved process is provided for the removal of sulfur oxides from gas or liquid media containing oxygen and water by contacting said media with a catalytically-active carbonaceous char. The improvement is provided by the use of a catalytically-active carbonaceous char prepared by low-temperature carbonization and oxidation of a bituminous coal or bituminous coal-like material followed by exposure to a nitrogen-containing compound during the initial high-temperature exposure of the low-temperature oxidized char. Following this initial high-temperature treatment the material can be further calcined or activated as desired.
Claims
1. A process for the removal of sulfur oxides from gaseous or liquid media which process comprises contacting said media, in the presence of oxygen and water vapor at temperatures below 100° C, with a catalytically-active carbonaceous char, said carbonaceous char comprising a bituminous coal or bituminous coal-like material carbonized and oxidized at temperatures below 700° C, and thereafter contacted with nitrogen-containing compounds while the temperatures were increased above 700° C.
2. The process of claim 1 wherein said carbonaceous char is activated at temperatures above 700° C using at least one of H2O, carbon dioxide, and oxygen.
3. The process of claim 1 wherein said carbonaceous char is cooled, after contact with nitrogen-containing compounds at temperatures above 700° C, to temperatures less than 400° C in an oxygen-free or otherwise inert atmosphere.
4. The process of claim 1 wherein carbonaceous char is cooled after contact with nitrogen-containing compounds at temperatures above 700 C, to temperatures less than 200° C in an oxygen-free or otherwise inert atmosphere.
5. The process of claim 2 wherein the activated carbonaceous char is cooled, following activation, to temperatures less than 400° C in an oxygen-free or otherwise inert atmosphere.
6. The process of claim 2 wherein the activated carbonaceous char is cooled, following activation, to temperatures less than 200° C in an oxygen-free or otherwise inert atmosphere. STATEMENT UNDER ARTICLE 19(1)
Applicant has amended the claims by clarifying the process steps of contacting a catalytically-active carbonaceous char. The process utilizes a catalytically-active char which has been subjected to carbonization and oxidation below 700° C and to a nitrogen-containing compound thereafter at a temperature above 700° C. These features are no more clearly defined in the substitute claims and distinctly point out the patentable features over the cited art.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6517102A JP2688386B2 (en) | 1993-01-21 | 1994-01-20 | SOx removal method using carbon catalyst |
| CA002132521A CA2132521C (en) | 1993-01-21 | 1994-01-20 | Method for sox removal by catalytic carbon |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/008,722 | 1993-01-21 | ||
| US08/008,722 US5352370A (en) | 1993-01-21 | 1993-01-21 | Method for SOx removal by catalytic carbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1994016799A1 WO1994016799A1 (en) | 1994-08-04 |
| WO1994016799B1 true WO1994016799B1 (en) | 1994-09-01 |
Family
ID=21733285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1994/000485 WO1994016799A1 (en) | 1993-01-21 | 1994-01-20 | METHOD FOR SOx REMOVAL BY CATALYTIC CARBON |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5352370A (en) |
| JP (1) | JP2688386B2 (en) |
| CA (1) | CA2132521C (en) |
| WO (1) | WO1994016799A1 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5444031A (en) * | 1993-01-21 | 1995-08-22 | Calgon Carbon Corporation | Process for making catalytic carbon |
| US6114273A (en) * | 1993-01-21 | 2000-09-05 | Calgon Carbon Corporation | Method for sox removal by catalytic carbon |
| US5700436A (en) * | 1993-01-21 | 1997-12-23 | Calgon Carbon Corporation | Purification of air in enclosed spaces |
| DK0700384T3 (en) | 1993-05-28 | 1997-12-08 | Pfizer | process for preparing and dissolving 2-phenyl-3-aminopiperidine |
| US5674462A (en) * | 1994-07-25 | 1997-10-07 | Calgon Carbon Corporation | Method for the removal of non-metal and metalloid hydrides |
| JP3725196B2 (en) * | 1995-03-01 | 2005-12-07 | 日本エンバイロケミカルズ株式会社 | Nitrogen-containing molecular sieve activated carbon, its production method and use |
| EP0786282A1 (en) * | 1996-01-25 | 1997-07-30 | Calgon Carbon Corporation | Method for SOx removal by catalytic carbon |
| US5637232A (en) * | 1996-03-11 | 1997-06-10 | Calgon Carbon Corporation | Process for the catalytic oxidation of ferrous iron in liquid media |
| WO1999008777A1 (en) | 1997-08-19 | 1999-02-25 | Electric Power Research Institute, Inc. | Apparatus and method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents |
| US6558454B1 (en) | 1997-08-19 | 2003-05-06 | Electric Power Research Institute, Inc. | Method for removal of vapor phase contaminants from a gas stream by in-situ activation of carbon-based sorbents |
| US6017501A (en) * | 1997-12-26 | 2000-01-25 | Marathon Oil Company | Disposal of hydrogen sulfide gas by conversion to sulfate ions in an aqueous solution |
| DE10028654A1 (en) * | 2000-06-09 | 2001-12-20 | Sandler Helmut Helsa Werke | Reactivation of activated charcoal, used in thin film filter for air purification by adsorption and catalytic reaction of sulfur dioxide, involves heating to activation temperature in gas containing ammonia, carbon dioxide and/or steam |
| US20020121481A1 (en) * | 2000-11-01 | 2002-09-05 | Kinetico Incorporated | Water treatment system |
| CA2367818C (en) | 2001-01-18 | 2010-05-11 | Electric Power Research Institute, Inc. | Method and apparatus for renewable mercury sorption |
| US6905534B2 (en) * | 2001-04-16 | 2005-06-14 | Electric Power Research Institute, Inc. | Method and apparatus for removing vapor phase contaminants from a flue gas stream |
| CA2381610C (en) | 2001-04-16 | 2010-07-06 | Electric Power Research Institute, Inc. | Method and apparatus for removing vapor phase contaminants from a flue gas stream |
| US8580979B1 (en) | 2009-09-28 | 2013-11-12 | Organocat, LLC | Method of preparing a humic acid extraction |
| CA2995357C (en) | 2015-08-11 | 2023-12-19 | Calgon Carbon Corporation | Enhanced sorbent formulation for removal of mercury from flue gas |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1224816A (en) * | 1967-10-06 | 1971-03-10 | Bergwerksverband Gmbh | Improvements in or relating to absorption agents |
| JPS5111037B2 (en) * | 1973-04-26 | 1976-04-08 | ||
| JPS5464091A (en) * | 1977-11-01 | 1979-05-23 | Toho Rayon Co Ltd | Adsorbent for removal of nitrogen oxides |
| JPS6058239A (en) * | 1983-09-07 | 1985-04-04 | Sumitomo Metal Ind Ltd | Coal liquefying catalyst and preparation thereof |
| US4624937A (en) * | 1984-05-10 | 1986-11-25 | Monsanto Company | Process for removing surface oxides from activated carbon catalyst |
| US4855116A (en) * | 1985-04-03 | 1989-08-08 | Bergwerksverband Gmbh | Activated coke method of removing nitrogen oxides from exhaust gases |
| JPS6458331A (en) * | 1987-08-31 | 1989-03-06 | Mitsui Mining Co Ltd | Denitration method for exhaust gas |
| DE3832635A1 (en) * | 1988-09-26 | 1990-03-29 | Heinrich Dr Rer Nat Fruehbuss | Process for producing carbon-containing catalysts having adsorptive properties |
| DE4031968A1 (en) * | 1990-10-09 | 1992-04-16 | Bayer Ag | CATALYST FOR REDUCING NITROGEN OXIDS FROM EXHAUST GASES AND METHOD FOR THE PRODUCTION THEREOF |
-
1993
- 1993-01-21 US US08/008,722 patent/US5352370A/en not_active Expired - Lifetime
-
1994
- 1994-01-20 CA CA002132521A patent/CA2132521C/en not_active Expired - Lifetime
- 1994-01-20 JP JP6517102A patent/JP2688386B2/en not_active Expired - Fee Related
- 1994-01-20 WO PCT/US1994/000485 patent/WO1994016799A1/en active Application Filing
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