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Class Information
Number: 423/239.1
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Nitrogen or nitrogenous component > Utilizing solid sorbent, catalyst, or reactant
Description: Process in which the treating material is a solid and functions to (a) modify a component, (b) attract and retain a component, or (c) react with and chemically change a component.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4609537 |
Process for simultaneously removing nitrogen oxides, sulfur oxides, and particulates |
Sep. 2, 1986 |
| 4609539 |
Process for simultaneously removing sulfur oxides and particulates |
Sep. 2, 1986 |
| 4602673 |
Apparatus for preheating combustion air, accompanied by simultaneous reduction of NO.sub.x contained in the flue gases |
Jul. 29, 1986 |
| 4597954 |
Process for removing sox and nox compounds from gas streams |
Jul. 1, 1986 |
| 4595575 |
Process for the continuous purification of waste gases with activated carbon |
Jun. 17, 1986 |
| 4587113 |
Removal of sulfur and nitrogen containing pollutants from discharge gases |
May. 6, 1986 |
| 4585631 |
Method for the conversion of nitrogen oxides contained in gaseous products of combustion |
Apr. 29, 1986 |
| 4585632 |
Process for the removal of nitrogen oxides from exhaust gases |
Apr. 29, 1986 |
| 4572903 |
Method for reactivating catalysts used for removing nitrogen oxides with steam |
Feb. 25, 1986 |
| 4571329 |
Ammonia reduction-denitration process and apparatus therefor |
Feb. 18, 1986 |
| 4565679 |
Method of regulating the amount of reducing agent added during catalytic reduction of NO.sub.x contained in flue gases |
Jan. 21, 1986 |
| 4551304 |
Method of cleaning air loaded with pollutants |
Nov. 5, 1985 |
| 4540554 |
Removal of Sox, Nox, and particulate from combusted carbonaceous fuels |
Sep. 10, 1985 |
| 4530817 |
Apparatus for the protection of air fed to a labor-protection or vehicle compartment |
Jul. 23, 1985 |
| 4528281 |
Carbon molecular sieves and a process for their preparation and use |
Jul. 9, 1985 |
| 4521388 |
NO.sub.x reduction in flue gas |
Jun. 4, 1985 |
| 4521390 |
Continuous process and equipment for the recovery of nitrogen oxides from nitrous gases |
Jun. 4, 1985 |
| 4520124 |
Method for producing a catalytic structure for the reduction of nitrogen oxides |
May. 28, 1985 |
| 4518710 |
Catalyst for the reduction of nitrogen oxides in gaseous mixtures and method of making the catalyst |
May. 21, 1985 |
| 4504450 |
Sulfur oxides and nitrogen oxides gas treating process |
Mar. 12, 1985 |
| 4500501 |
Method of removing sulfur oxides and nitrogen oxides by dry process |
Feb. 19, 1985 |
| 4482527 |
Process for removing nitrogen dioxide from off-gas |
Nov. 13, 1984 |
| 4478801 |
Method for purifying exhaust gases with hydrogensulfates |
Oct. 23, 1984 |
| 4473535 |
Process for reducing nitric oxides |
Sep. 25, 1984 |
| 4473536 |
Catalytic pollution control system for gas turbine exhaust |
Sep. 25, 1984 |
| 4473537 |
Ammonia control system for NO.sub.x emission control for gas turbine exhaust |
Sep. 25, 1984 |
| 4469662 |
Method of removing sulfur oxides and nitrogen oxides by dry process |
Sep. 4, 1984 |
| 4466947 |
Denitration catalyst and denitrating method |
Aug. 21, 1984 |
| 4464350 |
Parallel passage gas treating process |
Aug. 7, 1984 |
| 4455281 |
Plate-shaped catalyst unit for NOx reduction of exhaust gas |
Jun. 19, 1984 |
| 4454099 |
Sorbent bases treated with organic halides and their use to remove acidic substances from gas mixtures |
Jun. 12, 1984 |
| 4451435 |
Apparatus for cleaning air loaded with pollutants |
May. 29, 1984 |
| 4447333 |
Process for the elimination of ammonia in coke plant waste waters |
May. 8, 1984 |
| 4447353 |
Method for treating a nuclear process off-gas stream |
May. 8, 1984 |
| 4444736 |
Process for removing SO.sub.2 and NO.sub.x from gases |
Apr. 24, 1984 |
| 4443419 |
Moving bed gas treating process |
Apr. 17, 1984 |
| 4442079 |
Process for removal of nitrogen oxides and sulfur oxides from waste gases |
Apr. 10, 1984 |
| 4442080 |
Fluid bed SOX/NOX process--"hydrated calcine absorption" |
Apr. 10, 1984 |
| 4438082 |
Platinum gold catalyst for removing NO.sub.x and NH.sub.3 from gas streams |
Mar. 20, 1984 |
| 4434147 |
Simultaneous sulfur oxide and nitrogen oxide control in FCC units using cracking catalyst fines with ammonia injection |
Feb. 28, 1984 |
| 4430303 |
Removal of undesirable gaseous components from a hot waste gas |
Feb. 7, 1984 |
| 4427630 |
Gas deodorization method |
Jan. 24, 1984 |
| 4426365 |
Method for removing nitrogen oxides from gas streams and regenerating spent sorbent |
Jan. 17, 1984 |
| 4423017 |
Process for reducing NO emissions |
Dec. 27, 1983 |
| 4420313 |
Method for dust removal from solid-gas contact reactor |
Dec. 13, 1983 |
| 4403473 |
Ammonia/fuel ratio control system for reducing nitrogen oxide emissions |
Sep. 13, 1983 |
| 4400352 |
Method and a device for optimizing purification of diesel exhaust gases |
Aug. 23, 1983 |
| 4400363 |
Method for the removal of sulfur oxides and nitrogen oxides from exhaust gases |
Aug. 23, 1983 |
| 4393031 |
Process for efficiently removing oxides of nitrogen from exhaust gas |
Jul. 12, 1983 |
| 4388281 |
Noxious-component removal from flue gas and compositions useful therefor |
Jun. 14, 1983 |
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