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Class Information
Number: 423/242.7
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Sulfur or sulfur containing component > Utilizing reactant having organic portion to remove or modify sulfur or sulfur containing component > Amine
Description: Process wherein the nitrogen containing reactant is an amine (i.e., NR3
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7425314 |
Process for removing sulphur compounds including hydrogen sulphide and mercaptans from gas streams |
Sep. 16, 2008 |
| 7419646 |
Method of deacidizing a gas with a fractional regeneration absorbent solution |
Sep. 2, 2008 |
| 7387768 |
Method for purifying gases |
Jun. 17, 2008 |
| 7384616 |
Waste gas treatment process including removal of mercury |
Jun. 10, 2008 |
| 7374734 |
Absorbing agent and method for eliminating acid gases from fluids |
May. 20, 2008 |
| 7332145 |
Process and installation for the treatment of DSO |
Feb. 19, 2008 |
| 7214358 |
Low energy regenerable SO.sub.2 scrubbing process |
May. 8, 2007 |
| 7056482 |
Method for recovery of CO2 from gas streams |
Jun. 6, 2006 |
| 6852144 |
Method for removing COS from a stream of hydrocarbon fluid and wash liquid for use in a method of this type |
Feb. 8, 2005 |
| 6770119 |
Mercury removal method and system |
Aug. 3, 2004 |
| 6746623 |
Alkyl glycidyl ether-capped diamine foam controlling agent |
Jun. 8, 2004 |
| 6740230 |
Method for removing mercaptans from fluid fluxes |
May. 25, 2004 |
| 6666908 |
Process for deacidizing a gas with washing of the hydrocarbons desorbed upon regeneration of the solvent |
Dec. 23, 2003 |
| 6602324 |
Sulfur control in ion-conducting membrane systems |
Aug. 5, 2003 |
| 6595218 |
Cigarette filter |
Jul. 22, 2003 |
| 6544492 |
Regeneration method for process which removes hydrogen sulfide from gas streams |
Apr. 8, 2003 |
| 6355094 |
Material for the removal of gaseous impurities from a gas mixture |
Mar. 12, 2002 |
| 6342169 |
Safe storage and transportation of sulfur dioxide |
Jan. 29, 2002 |
| 6337059 |
Absorbent compositions for the removal of acid gases from gas streams |
Jan. 8, 2002 |
| 6277345 |
Process for the purification of gases |
Aug. 21, 2001 |
| 6267939 |
Absorbent composition for purifying gases which contain acidic components |
Jul. 31, 2001 |
| 6221277 |
Composition for removing sulfur compounds from fluids |
Apr. 24, 2001 |
| 6209547 |
Cigarette filter |
Apr. 3, 2001 |
| 6174507 |
Acid gas solvent filtration system |
Jan. 16, 2001 |
| 6096280 |
Natural gas treatment process |
Aug. 1, 2000 |
| 5980733 |
Method of removing sulfur compounds from hydrocarbon streams |
Nov. 9, 1999 |
| 5879433 |
Method and apparatus for reducing the acid gas and/or inert particulate content of steam |
Mar. 9, 1999 |
| 5705090 |
Absorption of mercaptans |
Jan. 6, 1998 |
| 5700438 |
Process for removal of H2S from gas processing streams |
Dec. 23, 1997 |
| 5693297 |
Gas treatment method |
Dec. 2, 1997 |
| 5688478 |
Method for scavenging sulfides |
Nov. 18, 1997 |
| 5625117 |
Fuel gas stripping of rich amine to remove hydrocarbons |
Apr. 29, 1997 |
| 5622681 |
Dialysis separation of heat stable organic amine salts in an acid gas absorption process |
Apr. 22, 1997 |
| 5607011 |
Reverse heat exchanging system for boiler flue gas condensing and combustion air preheating |
Mar. 4, 1997 |
| 5607594 |
Process for purifying an aqueous methyldiethanolamine solution |
Mar. 4, 1997 |
| 5589149 |
Process for absorption of mercaptans |
Dec. 31, 1996 |
| 5523069 |
Carbonyl sulfide abatement in fluids |
Jun. 4, 1996 |
| 5466270 |
Cyclonic centrifugal gas separator - absorber apparatus for boiler flue gas cleaning |
Nov. 14, 1995 |
| 5462721 |
Hydrogen sulfide scavenging process |
Oct. 31, 1995 |
| 5433934 |
Method for simultaneous absorption of sulfur dioxide and nitric oxide from flue gas |
Jul. 18, 1995 |
| 5403569 |
Process for boiler flue gas cleaning by absorption, separation and liquefaction |
Apr. 4, 1995 |
| 5364604 |
Solute gas-absorbing procedure |
Nov. 15, 1994 |
| 5342593 |
Process for absorption of sulfur compounds from fluids |
Aug. 30, 1994 |
| 5342592 |
Lance-type injection apparatus for introducing chemical agents into flue gases |
Aug. 30, 1994 |
| 5298228 |
Method and apparatus for treating hydrocarbon gas streams contaminated with carbonyl sulfide |
Mar. 29, 1994 |
| 5284557 |
Method for desulfurizing exhaust smoke |
Feb. 8, 1994 |
| 5277837 |
Method and composition for treating flue or exhaust gases utilizing modified calcium hydroxide |
Jan. 11, 1994 |
| 5262139 |
Removal of sulfur dioxide from gas streams |
Nov. 16, 1993 |
| 5246619 |
Solvent composition for removing acid gases |
Sep. 21, 1993 |
| 5246679 |
Addition of organophosphonates for size control of wet calcium-based FGD byproduct solids under inhibited oxidation conditions |
Sep. 21, 1993 |
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