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Class Information
Number: 423/230
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
Description: Processes in which the treating material is in the solid-state and functions to (1) modify a component, (2) attract and retain the component, or (3) react with and chemically change the constituent.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6093379 |
Purification of gases |
Jul. 25, 2000 |
| 6077488 |
Method and apparatus for producing clean dry air having application to air separation |
Jun. 20, 2000 |
| 6074621 |
Purification of gases |
Jun. 13, 2000 |
| 6056936 |
Catalytic desulphurization process for a gas containing H.sub.2 S and SO.sub.2 compounds and catalyst for implementing said process |
May. 2, 2000 |
| 6051162 |
Process for the generation of a low dew-point, oxygen-free protective atmosphere for the performance of thermal treatments |
Apr. 18, 2000 |
| 6048509 |
Gas purifying process and gas purifying apparatus |
Apr. 11, 2000 |
| 6033640 |
Method for the reagentless removal of nitrogen oxides from exhaust streams |
Mar. 7, 2000 |
| 6030591 |
Process for removing and recovering halocarbons from effluent process streams |
Feb. 29, 2000 |
| 6019953 |
Process for gas incineration |
Feb. 1, 2000 |
| 6017502 |
Hydrogen purification using metal hydride getter material |
Jan. 25, 2000 |
| 6004522 |
Solid filtration media incorporating elevated levels of permanganate and water |
Dec. 21, 1999 |
| 5997829 |
Environment purifying material |
Dec. 7, 1999 |
| 5993760 |
Bulk nitrogen purification process that requires no hydrogen in the regeneration |
Nov. 30, 1999 |
| 5985227 |
Process for removing sulfur compounds from industrial gases |
Nov. 16, 1999 |
| 5980846 |
Gas refining system |
Nov. 9, 1999 |
| 5972834 |
Carbon adsorbent, manufacturing method therefor, gas separation method and device therefor |
Oct. 26, 1999 |
| 5972303 |
Olefin purification |
Oct. 26, 1999 |
| 5968468 |
Gases and the ensurance of extremely low levels of hydrogen |
Oct. 19, 1999 |
| 5961837 |
Process for treatment of industrial waste |
Oct. 5, 1999 |
| 5958359 |
Process for treating H.sub.2 S-lean streams, with recycle of SOx from burner |
Sep. 28, 1999 |
| 5955044 |
Method and apparatus for making ultra-pure hydrogen |
Sep. 21, 1999 |
| 5948382 |
Selective oxidation of hydrogen sulfide in the presence of mixed-oxide catalyst containing iron, molybdenum and antimony |
Sep. 7, 1999 |
| 5942200 |
Method for removing carbon oxides from a hydrogen stream |
Aug. 24, 1999 |
| 5912198 |
Staged catalytic ammonia decomposition in integrated gasification combined cycle systems |
Jun. 15, 1999 |
| 5902561 |
Low temperature inert gas purifier |
May. 11, 1999 |
| 5891415 |
Process for selective oxidation of hydrogen sulfide to elemental sulfur |
Apr. 6, 1999 |
| 5888464 |
Catalyst composition containing an intimately combined cerium-zirconium oxide |
Mar. 30, 1999 |
| 5882622 |
Carbon dixide adsorption of synthetic meixnerite |
Mar. 16, 1999 |
| 5882614 |
Very low sulfur gas feeds for sulfur sensitive syngas and hydrocarbon synthesis processes |
Mar. 16, 1999 |
| 5866090 |
Method for separation of carbon dioxide gas |
Feb. 2, 1999 |
| 5858212 |
Desulfurization and hydrocarbon quality enhancement process |
Jan. 12, 1999 |
| 5853681 |
Absorbents |
Dec. 29, 1998 |
| 5798270 |
Assembly and method for monitoring hydrocarbon concentration in exhaust gas |
Aug. 25, 1998 |
| 5792438 |
Process and composition for increasing the reactivity of sulfur scavenging iron oxides |
Aug. 11, 1998 |
| 5780001 |
Sulfur absorbents |
Jul. 14, 1998 |
| 5780000 |
Use of Z-Sorb process as catalytic incinerator for tail gas from sulfur plants |
Jul. 14, 1998 |
| 5766567 |
Method for desulphurising a gaseous mixture containing H.sub.2 S and SO.sub . |
Jun. 16, 1998 |
| 5762899 |
Process for desulfurizing a H.sub.2 S-containing gas |
Jun. 9, 1998 |
| 5756852 |
Co-oxidation of H.sub.2 S and saturated hydrocarbons |
May. 26, 1998 |
| 5753198 |
Hot coal gas desulfurization |
May. 19, 1998 |
| 5733515 |
Purification of air in enclosed spaces |
Mar. 31, 1998 |
| 5716587 |
Apparatus for removal of contaminates from a gas stream |
Feb. 10, 1998 |
| 5700440 |
Selective oxidation of hydrogen sulfide in the presence of iron-based catalysts |
Dec. 23, 1997 |
| 5700436 |
Purification of air in enclosed spaces |
Dec. 23, 1997 |
| 5700439 |
Method of removing hydrogen sulfide from hot gas mixtures |
Dec. 23, 1997 |
| 5683587 |
Process for treating industrial wastes |
Nov. 4, 1997 |
| 5674463 |
Process for the purification of carbon dioxide |
Oct. 7, 1997 |
| 5667561 |
Method for selective separation of carbon dioxide from waste gas of combustion |
Sep. 16, 1997 |
| 5658541 |
Process for removal of divalent sulfur compounds from waste gases |
Aug. 19, 1997 |
| 5658544 |
Gas-solid contacting method |
Aug. 19, 1997 |
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