| |
 |
|
Class Information
Number: 423/243.05
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Sulfur or sulfur containing component > Utilizing aqueous reactant to remove or modify sulfur or sulfur containing component > With component added to inhibit corrosion or scaling of processing apparatus
Description: Process wherein the treatment includes addition of a reactive component whose function is specified to restrain or stop corroding or scaling of processing equipment.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6174507 |
Acid gas solvent filtration system |
Jan. 16, 2001 |
| 5788944 |
Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent |
Aug. 4, 1998 |
| 5733517 |
Byproduct solids crystal modification with organic acids in wet flue gas desulfurization systems |
Mar. 31, 1998 |
| 5686053 |
Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent |
Nov. 11, 1997 |
| 5558848 |
Clear liquid acid flue gas desulfurization system |
Sep. 24, 1996 |
| 5520897 |
Method of reagent and oxidation air delivery |
May. 28, 1996 |
| 5486342 |
Clear liquor scrubbing of sulfur dioxide with forced oxidation in flue gas desulfurization system |
Jan. 23, 1996 |
| 5215594 |
Process for cleaning surfaces of interior parts in two-stage flue gas desulfurization plants |
Jun. 1, 1993 |
| 5198201 |
Removal of sulphur and nitrogen oxides from flue gases |
Mar. 30, 1993 |
| 5167941 |
Quaternary polyamines as sulfite oxidation inhibitors in amine scrubbing of SO.sub.2 |
Dec. 1, 1992 |
| 4834955 |
Chemical formulation and combined process for inhibiting deposition and corrosion in cooling water and gypsum scaling in flue gas desulfurization scrubber systems |
May. 30, 1989 |
| 4818506 |
Gypsum scale inhibitors for flue gas desulfurization systems |
Apr. 4, 1989 |
| 4735787 |
Scale inhibitor for intermittent washed mist eliminators in flue gas desulfurization systems |
Apr. 5, 1988 |
| 4670236 |
Control of scale in flue gas scrubbers |
Jun. 2, 1987 |
| 4629603 |
Method of inhibiting cold end corrosion in boilers |
Dec. 16, 1986 |
| 4543193 |
Process for preventing the precipitation of elementary sulphur in riser pipes of probes for natural gas |
Sep. 24, 1985 |
| 4496525 |
Method for using chemical additives to protect utility boiler air heaters while increasing unit generation capacity |
Jan. 29, 1985 |
| 4482528 |
Lime slaking and grit removal process utilized in SO.sub.2 removal |
Nov. 13, 1984 |
| 4469663 |
Scale control in flue gas desulfurization |
Sep. 4, 1984 |
| 4465614 |
Alkanolaminium carboxylate solvents for selective SO.sub.2 absorption |
Aug. 14, 1984 |
| T103501 |
Dewatering of flue gas desulfurization sulfite solids |
Oct. 4, 1983 |
| 4342733 |
Method of improving sulfite antioxidant performance in high solids scrubbers |
Aug. 3, 1982 |
| 4301127 |
Flue gas scrubbing system |
Nov. 17, 1981 |
| 4298497 |
Composition for preventing cold end corrosion in boilers |
Nov. 3, 1981 |
| 4245573 |
Air heater corrosion prevention |
Jan. 20, 1981 |
| 4246245 |
SO.sub.2 Removal |
Jan. 20, 1981 |
| 4224180 |
Cold end additive compositions |
Sep. 23, 1980 |
| 4218428 |
Process for removing chlorine ions from the wet flue-gas processing system |
Aug. 19, 1980 |
| 4213946 |
Process for preventing formation of gypsum scale in a flue gas desulfurization process |
Jul. 22, 1980 |
| 4206172 |
Alkanolamines and ethylene polyamines as cold-end additives |
Jun. 3, 1980 |
| 4177245 |
Scale suppression in lime and limestone scrubbers |
Dec. 4, 1979 |
| 4147755 |
Air pollution control process |
Apr. 3, 1979 |
| 4134727 |
Aqueous solution of sodium metasilicate and N-aminoethyl ethanolamine as a cold-end additive |
Jan. 16, 1979 |
| 4134729 |
Aqueous solution of sodium aluminate and N-aminoethyl ethanolamine as a cold end additive |
Jan. 16, 1979 |
| 4134728 |
N-aminoethyl ethanolamine as a cold-end additive |
Jan. 16, 1979 |
|
|
|
