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Class Information
Number: 423/231
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Carbon dioxide or hydrogen sulfide component > Utilizing solid sorbent, catalyst, or reactant > Iron oxide or hydroxide
Description: Processes in which the solid treating material includes an oxide or hydroxide of iron.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7569199 |
Method to remove sulfur or sulfur-containing species from a source |
Aug. 4, 2009 |
| 7481985 |
Method of removing impurities from a gas |
Jan. 27, 2009 |
| 7425231 |
Feed gas contaminant removal in ion transport membrane systems |
Sep. 16, 2008 |
| 7267811 |
Fuel reformer catalyst and absorbent materials |
Sep. 11, 2007 |
| 7264788 |
Fuel reformer catalyst and absorbent materials |
Sep. 4, 2007 |
| 6998099 |
Method for desulphurizing acid gases using catalysts that are insensitive to oxidation and contain aminocarboxylate |
Feb. 14, 2006 |
| 6905592 |
Process for the desulphurization of feed streams |
Jun. 14, 2005 |
| 6726852 |
Method of manufacturing synthesis gas |
Apr. 27, 2004 |
| 6695985 |
Electromagnetic wave suppressor sheet |
Feb. 24, 2004 |
| 6682711 |
Protection of Fischer-Tropsch catalysts from traces of sulfur |
Jan. 27, 2004 |
| 6660238 |
Preparation and purification of diborane |
Dec. 9, 2003 |
| 6500237 |
Removing hydrogen sulfide from a gaseous mixture using ferric ions bonded to calcined diatomite |
Dec. 31, 2002 |
| 6425976 |
Method for black liquor gasification in recovery boilers |
Jul. 30, 2002 |
| 6251348 |
Process for increasing the reactivity of sulfur compound scavenging agents |
Jun. 26, 2001 |
| 6214304 |
Method of removing mercury from a mercury-containing flue gas |
Apr. 10, 2001 |
| 6126911 |
Metal oxide product suitable for use in dehydrated gas |
Oct. 3, 2000 |
| 5976476 |
Catalytic composition comprising a mixture of cerium oxide with manganese, iron or praseodymium oxide, process for its preparation and its use in automobile afterburning catalysis |
Nov. 2, 1999 |
| 5948382 |
Selective oxidation of hydrogen sulfide in the presence of mixed-oxide catalyst containing iron, molybdenum and antimony |
Sep. 7, 1999 |
| 5910466 |
Catalyst for purifying exhaust gas |
Jun. 8, 1999 |
| 5792438 |
Process and composition for increasing the reactivity of sulfur scavenging iron oxides |
Aug. 11, 1998 |
| 5756852 |
Co-oxidation of H.sub.2 S and saturated hydrocarbons |
May. 26, 1998 |
| 5700440 |
Selective oxidation of hydrogen sulfide in the presence of iron-based catalysts |
Dec. 23, 1997 |
| 5674463 |
Process for the purification of carbon dioxide |
Oct. 7, 1997 |
| 5603913 |
Catalysts and process for selective oxidation of hydrogen sulfide to elemental sulfur |
Feb. 18, 1997 |
| 5556605 |
Method of seperating sulphur compounds |
Sep. 17, 1996 |
| 5540896 |
System and method for cleaning hot fuel gas |
Jul. 30, 1996 |
| 5478541 |
Separately removing mercaptans and hydrogen sulfide from gas streams |
Dec. 26, 1995 |
| 5464604 |
Method for purifying high-temperature reducing gas |
Nov. 7, 1995 |
| 5427752 |
Process for purifying high-temperature reducing gases |
Jun. 27, 1995 |
| 5417946 |
Process for removing total reduced sulfur compounds from gaseous stream |
May. 23, 1995 |
| 5411721 |
Process for the rejection of CO.sub.2 from natural gas |
May. 2, 1995 |
| 5348921 |
Method for reducing sulfate formation during regeneration of hot-gas desulfurization sorbents |
Sep. 20, 1994 |
| 5302361 |
Multi-bed mass transfer column with mobile packing |
Apr. 12, 1994 |
| 5296205 |
Multi-bed mass transfer column with mobile packing |
Mar. 22, 1994 |
| 5286466 |
Multi-bed cocurrent downflow mass transfer column with spherical packing |
Feb. 15, 1994 |
| 5273734 |
Conversion of H.sub.2 to sulfur |
Dec. 28, 1993 |
| 5264194 |
Restoring reactivity of gas sweetening oxide beds |
Nov. 23, 1993 |
| 5244641 |
Absorption of hydrogen sulfide and absorbent composition therefor |
Sep. 14, 1993 |
| 5234884 |
Adsorbent composition and method of producing same |
Aug. 10, 1993 |
| 5160714 |
Continuous autocirculation, multiple zone mass transfer apparatus and method |
Nov. 3, 1992 |
| 5154900 |
Method for purifying high-temperature reducing gas |
Oct. 13, 1992 |
| 5152970 |
Process for the removal of hydrogen sulfide from gases |
Oct. 6, 1992 |
| 5139753 |
Continuous process for mass transfer of a liquid reagent with two different gases |
Aug. 18, 1992 |
| 5126118 |
Process and apparatus for removal of H.sub.2 S with separate absorber and oxidizer and a reaction chamber therebetween |
Jun. 30, 1992 |
| 5102636 |
Method of operation of a dry type simultaneous desulfurization and dedusting apparatus |
Apr. 7, 1992 |
| 5096690 |
Method and apparatus for manufacturing silver halide grains |
Mar. 17, 1992 |
| 5057291 |
Oxygen removal from gas streams |
Oct. 15, 1991 |
| 4994257 |
Method for purifying high-temperature reducing gas |
Feb. 19, 1991 |
| 4956160 |
Process for removal of hydrogen sulphide using specific iron oxides |
Sep. 11, 1990 |
| 4931262 |
Method of treating H.sub.2 S containing gases |
Jun. 5, 1990 |
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