| Patent Number |
Title Of Patent |
Date Issued |
| 7541011 |
Phase transitional absorption method |
Jun. 2, 2009 |
| 7223375 |
Emission control systems and methods thereof |
May. 29, 2007 |
| 7214358 |
Low energy regenerable SO.sub.2 scrubbing process |
May. 8, 2007 |
| 6428760 |
Method for desulfurizing exhaust gas |
Aug. 6, 2002 |
| 5958335 |
Method and apparatus for preventing corrosion of exhaust gas treatment systems |
Sep. 28, 1999 |
| 5609841 |
Method and apparatus for treating a flow of gas containing oxidized sulphur compounds |
Mar. 11, 1997 |
| 5486342 |
Clear liquor scrubbing of sulfur dioxide with forced oxidation in flue gas desulfurization system |
Jan. 23, 1996 |
| 5122352 |
Heat exchanger and pollutant removal system |
Jun. 16, 1992 |
| 5075085 |
Desulfurizing method for exhaust gas from combustor |
Dec. 24, 1991 |
| 5061467 |
Economic recovery and utilization of boiler flue gas pollutants |
Oct. 29, 1991 |
| 5028310 |
Reduction of SO.sub.x in regenerator off gas of a fluid cracking unit |
Jul. 2, 1991 |
| 5023064 |
Method for removing sulfur oxide |
Jun. 11, 1991 |
| 5007999 |
Method for reducing sulfur oxide emission during an FCC operation |
Apr. 16, 1991 |
| 4986966 |
Retrofit flue gas scrubber system |
Jan. 22, 1991 |
| 4943422 |
Process for treatment of gaseous effluents containing sulfur dioxide with oxygen |
Jul. 24, 1990 |
| 4931263 |
Wet-process stack gas purification method |
Jun. 5, 1990 |
| 4917875 |
Gas/solid contact method for removing sulfur oxides from gases |
Apr. 17, 1990 |
| 4911901 |
Wet desulfurization process for treating a flue gas |
Mar. 27, 1990 |
| 4874591 |
Process for the purification of waste gases containing hydrochloric acid and sulphur dioxide |
Oct. 17, 1989 |
| 4861577 |
Method for removing the sulphur content of a weak gas containing sulfur dioxide |
Aug. 29, 1989 |
| 4832936 |
Process for making calcium sulfate dihydrate or gypsum |
May. 23, 1989 |
| 4831207 |
Chemical processing with an operational step sensitive to a feedstream component |
May. 16, 1989 |
| 4666694 |
Method for treating by-products from flue gas |
May. 19, 1987 |
| 4552735 |
Process for removing total reduced sulfur compounds from industrial gases using manganese dioxide |
Nov. 12, 1985 |
| 4446010 |
Fluid catalytic cracking |
May. 1, 1984 |
| 4396594 |
Sulfur dioxide reduction process |
Aug. 2, 1983 |
| 4385039 |
Process for removal of sulfur oxides from waste gases |
May. 24, 1983 |
| 4374812 |
Process for stack gas treatment |
Feb. 22, 1983 |
| 4369108 |
Process for removing sulfur oxides from a gas |
Jan. 18, 1983 |
| 4325811 |
Catalytic cracking with reduced emission of noxious gas |
Apr. 20, 1982 |
| 4300997 |
Catalytic cracking with reduced emission of noxious gas |
Nov. 17, 1981 |
| 4285806 |
Catalyst and process for conversion of hydrocarbons |
Aug. 25, 1981 |
| 4284608 |
Process for regenerating sulfur dioxide gas scrubbing solutions |
Aug. 18, 1981 |
| 4283374 |
Regenerable manganese oxide hot gas desulfurization process |
Aug. 11, 1981 |
| 4274942 |
Control of emissions in FCC regenerator flue gas |
Jun. 23, 1981 |
| 4248842 |
Removal of contaminants and recovery of by-products from hot waste gas stream |
Feb. 3, 1981 |
| 4235853 |
Method for sulfur dioxide control II |
Nov. 25, 1980 |
| T998010 |
Process for removal of sulfur dioxide from gases |
Sep. 2, 1980 |
| 4201753 |
Flue gas desulfurization process |
May. 6, 1980 |
| RE29813 |
Process for the removal of sulfur oxide from waste gas |
Oct. 24, 1978 |
| 4081522 |
Regeneration of sulfated metal oxides and carbonates |
Mar. 28, 1978 |
| 4079119 |
Sulfur dioxide removal process |
Mar. 14, 1978 |
| 4070441 |
Method of removing sulfur dioxide from flue gases |
Jan. 24, 1978 |
| 4014978 |
Air pollution control system and method |
Mar. 29, 1977 |
| 4008310 |
Regenerative sulfur dioxide scrubbing system |
Feb. 15, 1977 |
| 3943230 |
Process for the removal of sulfur oxide from waste gas |
Mar. 9, 1976 |
| 3939251 |
Regeneration method for gas treating apparatus |
Feb. 17, 1976 |
