RU95102677A - Method of treating gases to remove nitrogen oxides - Google Patents

Method of treating gases to remove nitrogen oxides

Info

Publication number
RU95102677A
RU95102677A RU95102677/25A RU95102677A RU95102677A RU 95102677 A RU95102677 A RU 95102677A RU 95102677/25 A RU95102677/25 A RU 95102677/25A RU 95102677 A RU95102677 A RU 95102677A RU 95102677 A RU95102677 A RU 95102677A
Authority
RU
Russia
Prior art keywords
nitrogen oxides
catalysts
zeolites
gases
purification
Prior art date
Application number
RU95102677/25A
Other languages
Russian (ru)
Other versions
RU2088316C1 (en
Inventor
В.А. Садыков
Р.В. Бунина
Г.М. Аликина
А.Я. Розовский
В.В. Лунин
В.В. Карпан
С.А. Буймов
В.Ф. Третьяков
В.П. Доронин
Original Assignee
Институт катализа им.Г.К.Борескова СО РАН
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Институт катализа им.Г.К.Борескова СО РАН filed Critical Институт катализа им.Г.К.Борескова СО РАН
Priority to RU95102677/25A priority Critical patent/RU2088316C1/en
Publication of RU95102677A publication Critical patent/RU95102677A/en
Application granted granted Critical
Publication of RU2088316C1 publication Critical patent/RU2088316C1/en

Links

Abstract

FIELD: gas purification. SUBSTANCE: invention relates to removing nitrogen oxides from both dry and wet as well as sulfur-containing effluent gases by way of reducing with hydrocarbons using zeolite-based catalysts not containing precious metals. Zeolites of catalysts containing transition metal cations are additionally modified with strontium or zinc. High degree of purification is achieved under drastic conditions with volume velocities of gases to be treated up to 120000 hand also under rather low temperatures. EFFECT: facilitated removal of nitrogen oxides. 2 tbl

Claims (1)

Изобретение относится к способам удаления оксидов азотa как из сухих, так и влажных и серосодержащих отходящих газов путем восстановления углеводородами с применением катализаторов на основе цеолитов, не содержащих драгметаллов. В качестве катализаторов используют цеолиты, содержащие катионы переходных металлов, дополнительно модифицированные катионами стронция или цинка. Высокая степень очистки достигается в жестких условиях, при высоких объемных скоростях подачи очищаемого газа - до 120000ч, а также при довольно низких температурах.The invention relates to methods for removing nitrogen oxides from both dry and wet and sulfur-containing exhaust gases by reduction with hydrocarbons using catalysts based on zeolites that do not contain precious metals. As catalysts, zeolites containing transition metal cations additionally modified with strontium or zinc cations are used. A high degree of purification is achieved in harsh conditions, at high volumetric feed rates of the gas to be purified - up to 120,000 hours, as well as at fairly low temperatures.
RU95102677/25A 1995-02-28 1995-02-28 Method of scrubbing the exhaust gases from nitrogen oxides RU2088316C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95102677/25A RU2088316C1 (en) 1995-02-28 1995-02-28 Method of scrubbing the exhaust gases from nitrogen oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95102677/25A RU2088316C1 (en) 1995-02-28 1995-02-28 Method of scrubbing the exhaust gases from nitrogen oxides

Publications (2)

Publication Number Publication Date
RU95102677A true RU95102677A (en) 1997-05-10
RU2088316C1 RU2088316C1 (en) 1997-08-27

Family

ID=20165112

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95102677/25A RU2088316C1 (en) 1995-02-28 1995-02-28 Method of scrubbing the exhaust gases from nitrogen oxides

Country Status (1)

Country Link
RU (1) RU2088316C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI116897B (en) 2003-02-04 2006-03-31 Kemira Oyj Use of ammonium formate in the reduction process
GB2464478A (en) * 2008-10-15 2010-04-21 Johnson Matthey Plc Aluminosilicate zeolite catalyst and use thereof in exhaust gas after-treatment
RU2614411C2 (en) * 2010-12-02 2017-03-28 Джонсон Мэтти Паблик Лимитед Компани Zeolite catalyst including metal

Also Published As

Publication number Publication date
RU2088316C1 (en) 1997-08-27

Similar Documents

Publication Publication Date Title
ATE178501T1 (en) METHOD FOR REMOVAL OF NOX FROM COMBUSTION ZONE GASES BY ABSORPTION
DE50107013D1 (en) Process for the removal of nitrogen oxides and soot particles from the lean exhaust gas of an internal combustion engine
ZA909271B (en) Process for the purification of the exhaust gases of diesel engines
AU628474B2 (en) Catalyst for purification of exhaust gas from diesel engine
EP0601287A3 (en) Apparatus for purifying exhaust gas of diesel engine.
ID24080A (en) REGENERATION OF ZEOLITE CATALYST
EP0666098A3 (en) Process for the purification of combustion exhaust gases.
HU9301170D0 (en) Catalyst for purifying exhaust gases of diesel engines by means of oxidation
CA2260136A1 (en) Exhaust gas denitration method
RU94046153A (en) Method of residual gas sulfurous compounds removal
RU94046134A (en) Method of hydrogen sulfide removal from gas
RU95102677A (en) Method of treating gases to remove nitrogen oxides
DE69512843D1 (en) Aluminum catalyst for the treatment of sulfur-containing gases, use of these catalysts for gas treatment and a process for gas treatment
ES8603280A1 (en) Process for eliminating CO2 and/or H2S from gases.
KR940005317A (en) How to remove nitrogen from flue gas at low temperature
DE69309049D1 (en) DEVICE FOR PURIFYING EXHAUST GASES
RU98113396A (en) METHOD FOR REMOVING ACID COMPOUNDS FROM A HYDROCARBON FLOW
RU1805999C (en) Method of cleaning gases of nitric oxides
SU1590119A1 (en) Method of cleaning waste gases from nitrogen oxides
JPS53205A (en) Gas purification method
PL294006A1 (en) Reactor for purification of gases, in particular exhaust ones, to remove sulfur compounds
RU94027081A (en) Method for removal of nitric oxide from flue gases
SU1198012A1 (en) Method of purifying waste water
SU822861A1 (en) Method of cleaning gas from hydrogen sulfide in the presence of carbon dioxide
SU800129A1 (en) Method of nitrose gas purification from nitrogen oxides

Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20060301