RU93057866A - METHOD FOR CLEANING GAS FROM NITROGEN COMPOUNDS - Google Patents

METHOD FOR CLEANING GAS FROM NITROGEN COMPOUNDS

Info

Publication number
RU93057866A
RU93057866A RU93057866/26A RU93057866A RU93057866A RU 93057866 A RU93057866 A RU 93057866A RU 93057866/26 A RU93057866/26 A RU 93057866/26A RU 93057866 A RU93057866 A RU 93057866A RU 93057866 A RU93057866 A RU 93057866A
Authority
RU
Russia
Prior art keywords
nitrogen compounds
gas
ammonia
ratio
pov
Prior art date
Application number
RU93057866/26A
Other languages
Russian (ru)
Other versions
RU2077933C1 (en
Inventor
Е.И. Андрейков
В.Л. Волков
О.П. Сауль
В.М. Белослудцев
Г.И. Пешина
Original Assignee
Восточный научно-исследовательский углехимический институт
Filing date
Publication date
Application filed by Восточный научно-исследовательский углехимический институт filed Critical Восточный научно-исследовательский углехимический институт
Priority to RU93057866A priority Critical patent/RU2077933C1/en
Priority claimed from RU93057866A external-priority patent/RU2077933C1/en
Publication of RU93057866A publication Critical patent/RU93057866A/en
Application granted granted Critical
Publication of RU2077933C1 publication Critical patent/RU2077933C1/en

Links

Claims (1)

Изобретение относится к способам очистки газов, в частности газовых выбросов, от соединений азота и может быть использовано в химической, коксогазо- и нефтехимической отраслях промышленности. Изобретение позволяет расширить диапазон использования способа при обеспечении глубокой очистки газов от соединений азота. Газ, включающий соединения азота и кислород, в присутствии аммиака контактирует со смесью катализаторов при 290 - 400oС. При этом первый катализатор содержит пятиоксид ванадия (ПОВ) на носителе оксида алюминия (ОА) при следующем соотношении компонентов, мас.%: ПОВ-6-9, ОА-91-94, а второй катализатор содержит ПОВ, оксид меди (ОМ) и ОА при следующем соотношении компонентов, мас.%: ПОВ-6-9, ОМ-3-5, ОА-86-91. Соотношение катализаторов в используемой механической смеси составляет (1 oC 3) : 1. При очистке газов переменного во времени состава, в которых в качестве соединений азота присутствуют оксиды и аммиак, отношение аммиака к оксидам азота должно быть выше стехиометрического - выше 1,5. Степень очистки газов о соединений азота 90 - 100%.The invention relates to methods for gas purification, in particular gas emissions, from nitrogen compounds and can be used in chemical, coke-gas and petrochemical industries. The invention allows to expand the range of use of the method while ensuring the deep purification of gases from nitrogen compounds. The gas, including nitrogen compounds and oxygen, in the presence of ammonia is in contact with a mixture of catalysts at 290 - 400 o C. The first catalyst contains vanadium pentoxide (DOM) on an alumina carrier (OA) in the following ratio of components, wt.%: SIL- 6-9, OA-91-94, and the second catalyst contains POV, copper oxide (OM) and OA in the following ratio of components, wt.%: POV-6-9, OM-3-5, OA-86-91. The ratio of catalysts in the mechanical mixture used is (1 o C 3): 1. When cleaning gases of variable time composition in which oxides and ammonia are present as nitrogen compounds, the ratio of ammonia to nitrogen oxides must be higher than stoichiometric - above 1.5. The degree of gas purification on nitrogen compounds is 90-100%.
RU93057866A 1993-12-29 1993-12-29 Method for scrubbing gases against nitrogen compounds RU2077933C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93057866A RU2077933C1 (en) 1993-12-29 1993-12-29 Method for scrubbing gases against nitrogen compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93057866A RU2077933C1 (en) 1993-12-29 1993-12-29 Method for scrubbing gases against nitrogen compounds

Publications (2)

Publication Number Publication Date
RU93057866A true RU93057866A (en) 1996-01-20
RU2077933C1 RU2077933C1 (en) 1997-04-27

Family

ID=20150986

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93057866A RU2077933C1 (en) 1993-12-29 1993-12-29 Method for scrubbing gases against nitrogen compounds

Country Status (1)

Country Link
RU (1) RU2077933C1 (en)

Similar Documents

Publication Publication Date Title
ATE112697T1 (en) PROCESS FOR REDUCING NITROUS OXIDES FROM EXHAUST GASES.
US4661329A (en) Catalyst for oxidizing an offensively smelling substance and a method of removing an offensively smelling substance
KR900015815A (en) Zeolite Catalyst Promoted by Process Metals and Catalytic Reduction of Nitrogen Oxides Using the Same
ATE419061T1 (en) CATALYST FOR PURIFYING DIESEL EXHAUST GASES
DE69218017D1 (en) Catalytic converter for cleaning exhaust gases
ATE103503T1 (en) PROCESS FOR REMOVAL OF NITROGEN OXIDES.
KR920007684A (en) Exhaust gas purification catalyst and exhaust gas purification method using the same
DK0739651T3 (en) Nitric oxide reduction catalyst and process for reducing nitrogen oxides in exhaust gas
CA2141734A1 (en) Selective Catalytic Reduction of Nitrogen Oxides
DE60223049D1 (en) Process for the preparation of a used catalyst
JPH0796195A (en) Exhaust gas purification catalyst
US20010038813A1 (en) Method for removing nitrogen oxides from an oxygen-containing flue gas stream
AU5370386A (en) Catalytic reduction of nitrogen oxides in exhaust gases
KR920016139A (en) Exhaust gas purification catalyst and exhaust gas purification method using the same
JPH05103953A (en) Method for removing nitrogen oxide in exhaust gas and removal catalyst
RU93057866A (en) METHOD FOR CLEANING GAS FROM NITROGEN COMPOUNDS
GB2295780A (en) Base metal catalyst, catalytic support and two-stage process for the purification of vehicle exhaust gases
CA2096328A1 (en) Catalyst for Purifying Exhaust Gas
AU733455B2 (en) Reduction of nitrogen oxide
DE59207781D1 (en) Catalyst for reducing nitrogen oxides in the flue gas and process for its production
RU2077933C1 (en) Method for scrubbing gases against nitrogen compounds
JPS6333890B2 (en)
SU1685508A1 (en) Catalyst for reducing nitrogen oxides with ammonia
KR100406364B1 (en) Cromia/zeolite catalyst for removing nitrogen oxides and chlorinated organic compounds from waste gases
JPH04265122A (en) Purifying method of waste gas