RU97108251A - METHOD FOR CLEANING SMOKE GASES FROM NITROGEN OXIDES - Google Patents

METHOD FOR CLEANING SMOKE GASES FROM NITROGEN OXIDES

Info

Publication number
RU97108251A
RU97108251A RU97108251/25A RU97108251A RU97108251A RU 97108251 A RU97108251 A RU 97108251A RU 97108251/25 A RU97108251/25 A RU 97108251/25A RU 97108251 A RU97108251 A RU 97108251A RU 97108251 A RU97108251 A RU 97108251A
Authority
RU
Russia
Prior art keywords
urea
nitrogen oxides
flue gases
carrier gas
thermal decomposition
Prior art date
Application number
RU97108251/25A
Other languages
Russian (ru)
Other versions
RU2113890C1 (en
Inventor
О.Н. Кулиш
С.А. Кужеватов
Т.В. Зайцева
В.П. Герасимова
Н.Г. Гладкая
Г.С. Акопова
Original Assignee
Государственная академия нефти и газа им.И.М.Губкина
Filing date
Publication date
Application filed by Государственная академия нефти и газа им.И.М.Губкина filed Critical Государственная академия нефти и газа им.И.М.Губкина
Priority to RU97108251A priority Critical patent/RU2113890C1/en
Priority claimed from RU97108251A external-priority patent/RU2113890C1/en
Application granted granted Critical
Publication of RU2113890C1 publication Critical patent/RU2113890C1/en
Publication of RU97108251A publication Critical patent/RU97108251A/en

Links

Claims (4)

1. Способ очистки дымовых газов от оксидов азота, включающий обработку дымовых газов при 700 - 1200oС продуктами термического разложения карбамида, отличающийся тем, что для обработки используют продукты термического разложения карбамида, полученные при нагревании твердого карбамида вне зоны восстановления оксидов азота при одновременном продувании слоя твердого карбамида газом-носителем и последующем введении образованной газовой смеси в зону восстановления оксидов азота.1. The method of purification of flue gases from nitrogen oxides, including the treatment of flue gases at 700 - 1200 o With products of thermal decomposition of urea, characterized in that for processing use products of thermal decomposition of urea obtained by heating solid urea outside the zone of reduction of nitrogen oxides while blowing a layer of solid urea with a carrier gas and the subsequent introduction of the formed gas mixture into the reduction zone of nitrogen oxides. 2. Способ по п.1, отличающийся тем, что используют продукты термического разложения карбамида, полученные при нагревании твердого карбамида до 50 - 200oC.2. The method according to claim 1, characterized in that the thermal decomposition products of urea obtained by heating solid urea to 50 - 200 o C. are used. 3. Способ по пп. 1 и 2, отличающийся тем, что нагрев твердого карбамида осуществляют газом-носителем, имеющим температуру выше температуры разложения карбамида на 10 - 50°С. 3. The method according to PP. 1 and 2, characterized in that the heating of solid urea is carried out with a carrier gas having a temperature above the decomposition temperature of urea by 10 - 50 ° C. 4. Способ по п. 1, отличающийся тем, что в качестве газа-носителя используют воздух, или азот, или дымовые газы, или водяной пар, или их смесь. 4. The method according to p. 1, characterized in that the carrier gas used is air, or nitrogen, or flue gases, or water vapor, or a mixture thereof.
RU97108251A 1997-05-20 1997-05-20 Method of removing nitrogen oxides from flue gases RU2113890C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97108251A RU2113890C1 (en) 1997-05-20 1997-05-20 Method of removing nitrogen oxides from flue gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97108251A RU2113890C1 (en) 1997-05-20 1997-05-20 Method of removing nitrogen oxides from flue gases

Publications (2)

Publication Number Publication Date
RU2113890C1 RU2113890C1 (en) 1998-06-27
RU97108251A true RU97108251A (en) 1999-01-20

Family

ID=20193132

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97108251A RU2113890C1 (en) 1997-05-20 1997-05-20 Method of removing nitrogen oxides from flue gases

Country Status (1)

Country Link
RU (1) RU2113890C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006047042A1 (en) * 2006-10-02 2008-04-03 Emitec Gesellschaft Für Emissionstechnologie Mbh Device for evaporating reducing agent e.g reducing agent precursor solution and reducing agent solution, has electrically heated warming zone, which has electrically operated heating element with heating resistor
FR2918294B1 (en) * 2007-07-02 2009-10-09 Lab Sa Sa PROCESS FOR PURIFYING COMBUSTION FUMEES CONTAINING NITROGEN OXIDES
RU2550864C2 (en) * 2013-09-27 2015-05-20 Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" Method for high-temperature non-catalytic removal of nitrogen oxides from combustion products with multi-zone input of reducing agent
RU2742174C1 (en) * 2020-07-24 2021-02-02 Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" (ОАО "ВТИ") Method of purification from nitrogen oxides of fuel combustion products in gas duct of thermal unit and installation for its implementation

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