RU96112394A - METHOD FOR CLEANING EXHAUST GASES - Google Patents

METHOD FOR CLEANING EXHAUST GASES

Info

Publication number
RU96112394A
RU96112394A RU96112394/25A RU96112394A RU96112394A RU 96112394 A RU96112394 A RU 96112394A RU 96112394/25 A RU96112394/25 A RU 96112394/25A RU 96112394 A RU96112394 A RU 96112394A RU 96112394 A RU96112394 A RU 96112394A
Authority
RU
Russia
Prior art keywords
stage
catalyst
water
processing
perovskite
Prior art date
Application number
RU96112394/25A
Other languages
Russian (ru)
Other versions
RU2108140C1 (en
Inventor
А.Ю. Логинов
А.А. Иванов
О.А. Устинов
Original Assignee
А.Ю. Логинов
А.А. Иванов
О.А. Устинов
Filing date
Publication date
Application filed by А.Ю. Логинов, А.А. Иванов, О.А. Устинов filed Critical А.Ю. Логинов
Priority to RU96112394A priority Critical patent/RU2108140C1/en
Priority claimed from RU96112394A external-priority patent/RU2108140C1/en
Priority to EP97929631A priority patent/EP0953374A4/en
Priority to PCT/RU1997/000197 priority patent/WO1997049480A1/en
Priority to KR1019980710624A priority patent/KR20000022205A/en
Application granted granted Critical
Publication of RU2108140C1 publication Critical patent/RU2108140C1/en
Publication of RU96112394A publication Critical patent/RU96112394A/en

Links

Claims (10)

1. Способ очистки отработавших газов, включающий их обработку в виде стадии с использованием соответствующего катализатора на каждой стадии, отличающийся тем, что на первой стадии осуществляют окисление и используют оксидный катализатор, а на второй стадии осуществляют восстановление оксидов азота при введении водорастворимых NH-содержащих реагентов и используют катализатор-адсорбент.1. The method of purification of exhaust gases, including their treatment in the form of a stage using an appropriate catalyst at each stage, characterized in that the first stage is the oxidation and the use of an oxide catalyst, and the second stage is the reduction of nitrogen oxides with the introduction of water-soluble NH-containing reagents and using an adsorbent catalyst. 2. Способ по п. 1, отличающийся тем, что на каждой стадии используют катализаторы на блочных пористых керамических носителях или фильтрах сотовой структуры повышенной прочности на основе модифицированных или цеолитов, или глинозема, или кордиерита. 2. The method according to p. 1, characterized in that at each stage they use catalysts on block porous ceramic supports or filters of honeycomb structure of increased strength based on modified or zeolites, or alumina, or cordierite. 3. Способ по п. 1, отличающийся тем, что в качестве катализатора первой стадии используют перовскит на носителе. 3. The method according to p. 1, characterized in that the perovskite on the carrier is used as the catalyst for the first stage. 4. Способ по п. 1, отличающийся тем, что в качестве катализатора первой стадии используют формованные с электропроводящими добавками блоки или фильтры с удельным сопротивлением 0,1 - 2,0 кОм•см. 4. The method according to p. 1, characterized in that as the catalyst for the first stage using molded with electrically conductive additives blocks or filters with a specific resistance of 0.1 - 2.0 kOhm • see 5. Способ по п. 4, отличающийся тем, что в качестве электропроводящей добавки используют перовскит. 5. The method according to p. 4, characterized in that perovskite is used as an electrically conductive additive. 6. Способ по п. 4, отличающийся тем, что повышают температуру блочного катализатора первой стадии или фильтра на 100 - 300oC при проведении первой стадии обработки.6. The method according to p. 4, characterized in that the temperature of the block catalyst of the first stage or filter is increased by 100 - 300 o C during the first stage of processing. 7. Способ по п. 2, отличающийся тем, что в качестве модификаторов используют переходные металлы (медь, железо, марганец и др.) и их вводят в количестве 1 - 20 мас.%. 7. The method according to p. 2, characterized in that transition metals (copper, iron, manganese, etc.) are used as modifiers and they are introduced in an amount of 1 to 20 wt.%. 8. Способ по п. 1, отличающийся тем, что в качестве водорастворимых NH-содержащих реагентов используют карбамид, бикарбонат аммония и др. или их смеси. 8. The method according to p. 1, characterized in that as a water-soluble NH-containing reagents use urea, ammonium bicarbonate, etc. or mixtures thereof. 9. Способ по п. 1, отличающийся тем, что окисленные газы перед второй стадией обработки пропускают через теплообменник и охлаждают ниже точки росы. 9. The method according to p. 1, characterized in that the oxidized gases before the second stage of processing are passed through a heat exchanger and cooled below the dew point. 10. Способ по п. 1, отличающийся тем, что перед второй стадией обработки в поток очищаемого газа впрыскивают воду или водные растворы восстановителей в количестве 50 - 100 г/м3, содержащие 50 - 400 г/л реагентов.10. The method according to p. 1, characterized in that before the second processing stage, water or aqueous solutions of reducing agents are injected into the stream of purified gas in an amount of 50-100 g / m 3 containing 50 to 400 g / l of reagents.
RU96112394A 1996-06-24 1996-06-24 Method of treating exhaust gases RU2108140C1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
RU96112394A RU2108140C1 (en) 1996-06-24 1996-06-24 Method of treating exhaust gases
EP97929631A EP0953374A4 (en) 1996-06-24 1997-06-23 Method for purifying effluent gases
PCT/RU1997/000197 WO1997049480A1 (en) 1996-06-24 1997-06-23 Method for purifying effluent gases
KR1019980710624A KR20000022205A (en) 1996-06-24 1997-06-23 Method for purifying effluent gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96112394A RU2108140C1 (en) 1996-06-24 1996-06-24 Method of treating exhaust gases

Publications (2)

Publication Number Publication Date
RU2108140C1 RU2108140C1 (en) 1998-04-10
RU96112394A true RU96112394A (en) 1998-10-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU96112394A RU2108140C1 (en) 1996-06-24 1996-06-24 Method of treating exhaust gases

Country Status (4)

Country Link
EP (1) EP0953374A4 (en)
KR (1) KR20000022205A (en)
RU (1) RU2108140C1 (en)
WO (1) WO1997049480A1 (en)

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US8789356B2 (en) * 2011-07-28 2014-07-29 Johnson Matthey Public Limited Company Zoned catalytic filters for treatment of exhaust gas
US9713787B2 (en) * 2014-12-10 2017-07-25 Exxonmobil Upstream Research Company Adsorbent-incorporated polymer fibers in packed bed and fabric contactors, and methods and devices using same
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UA118163C2 (en) 2015-08-14 2018-11-26 Оріон Інджинірд Карбонз Гмбх Methods and systems for particulate matter removal from a process exhaust gas stream
KR102215684B1 (en) 2016-09-01 2021-02-19 엑손모빌 업스트림 리서치 캄파니 Swing adsorption method for water removal using 3A zeolite structure
CN110087755A (en) 2016-12-21 2019-08-02 埃克森美孚上游研究公司 The self-supporting structure of active material
CN110099730A (en) 2016-12-21 2019-08-06 埃克森美孚上游研究公司 Self-supporting structure with foam geometrical form and active material
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US11376545B2 (en) 2019-04-30 2022-07-05 Exxonmobil Upstream Research Company Rapid cycle adsorbent bed
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