RU2009102504A - DIESEL ENGINE EXHAUST GAS SYSTEM AND DESULFATION METHOD - Google Patents

DIESEL ENGINE EXHAUST GAS SYSTEM AND DESULFATION METHOD Download PDF

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RU2009102504A
RU2009102504A RU2009102504/06A RU2009102504A RU2009102504A RU 2009102504 A RU2009102504 A RU 2009102504A RU 2009102504/06 A RU2009102504/06 A RU 2009102504/06A RU 2009102504 A RU2009102504 A RU 2009102504A RU 2009102504 A RU2009102504 A RU 2009102504A
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nox trap
exhaust
reforming
trap
exhaust gas
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RU2009102504/06A
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RU2429354C2 (en
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Франсуа ФРЕСНЕ (FR)
Франсуа ФРЕСНЕ
Натали БУЭ (FR)
Натали БУЭ
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Рено С.А.С. (Fr)
Рено С.А.С.
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
    • F01N3/0885—Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0821—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with particulate filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
    • F01N3/0878—Bypassing absorbents or adsorbents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2033—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using a fuel burner or introducing fuel into exhaust duct
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/30—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel reformer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

1. Способ десульфатации нейтрализатора (6) NOx Trap системы выпуска отработанных газов дизельного двигателя, предназначенный для удаления во время работы двигателя по меньшей мере части серосодержащих соединений, задержанных нейтрализатором NOx Trap, характеризующийся этапами, на которых ! вырабатывают продукт риформинга из топлива данного двигателя посредством риформинг-аппарата (4), ! подогревают нейтрализатор NOx Trap путем введения продукта риформинга в поток отработанных газов в точке впрыска (5), расположенной за двигателем и перед нейтрализатором NOx Trap, до тех пор, пока не будет достигнута заданная температура десульфатации в нейтрализаторе NOx Trap, затем ! отводят поток отработанных газов от точки ответвления системы выпуска, расположенной перед точкой впрыска, и продолжают подачу продукта риформинга в нейтрализатор NOx Trap для осуществления десульфатации, ! при этом проведение этапов способа не оказывают влияния на степень обогащения топливной смеси дизельного двигателя. ! 2. Способ по п.1, отличающийся тем, что продолжительность этапа отвода отработанных газов задают заранее, в частности, продолжительность этого этапа составляет от 10 с до 20 мин. ! 3. Способ по любому из пп.1 или 2, отличающийся тем, что продолжительность этапа подогрева задают заранее. ! 4. Способ по п.1, отличающийся тем, что продолжительность по меньшей мере одного из этапов подогрева и/или отвода потока отработанных газов задают на основании измерения температуры. ! 5. Способ по п.4, отличающийся тем, что в конце этапа отвода отработанных газов их снова направляют в нейтрализатор (6) NOx Trap и прекращают выработку продукта риформинга. ! 6. Способ по п.1, отл 1. Method of desulfation of the NOx Trap neutralizer (6) of the exhaust system of a diesel engine, designed to remove, during engine operation, at least part of the sulfur-containing compounds trapped by the NOx Trap, characterized by the stages at which! produce a reforming product from the fuel of this engine by means of a reformer (4),! preheat the NOx Trap by injecting the reformate into the flue gas stream at the injection point (5) downstream of the engine and upstream of the NOx Trap until the desired desulfation temperature in the NOx Trap is reached, then! the exhaust gas stream is diverted from the branch point of the exhaust system, located upstream of the injection point, and the reformate continues to be fed to the NOx Trap for desulfation! while carrying out the steps of the method does not affect the degree of enrichment of the fuel mixture of the diesel engine. ! 2. A method according to claim 1, characterized in that the duration of the exhaust gas removal step is predetermined, in particular, the duration of this step ranges from 10 seconds to 20 minutes. ! 3. A method according to any one of claims 1 or 2, characterized in that the duration of the heating step is predetermined. ! 4. The method according to claim 1, characterized in that the duration of at least one of the stages of heating and / or withdrawing the exhaust gas stream is set based on the temperature measurement. ! 5. A method according to claim 4, characterized in that at the end of the step of removing the exhaust gases, they are again sent to the NOx Trap catalyst (6) and the production of reformate is stopped. ! 6. The method according to claim 1, ex

Claims (14)

1. Способ десульфатации нейтрализатора (6) NOx Trap системы выпуска отработанных газов дизельного двигателя, предназначенный для удаления во время работы двигателя по меньшей мере части серосодержащих соединений, задержанных нейтрализатором NOx Trap, характеризующийся этапами, на которых1. The method of desulfation of a catalyst (6) NOx Trap diesel exhaust system, designed to remove during engine operation at least part of the sulfur-containing compounds delayed by the NOx Trap catalyst, characterized in stages in which вырабатывают продукт риформинга из топлива данного двигателя посредством риформинг-аппарата (4),producing a reforming product from the fuel of a given engine by means of a reforming apparatus (4), подогревают нейтрализатор NOx Trap путем введения продукта риформинга в поток отработанных газов в точке впрыска (5), расположенной за двигателем и перед нейтрализатором NOx Trap, до тех пор, пока не будет достигнута заданная температура десульфатации в нейтрализаторе NOx Trap, затемthey heat the NOx Trap by introducing the reformate into the exhaust gas stream at the injection point (5), located behind the engine and in front of the NOx Trap, until the desired desulfation temperature in the NOx Trap is reached, then отводят поток отработанных газов от точки ответвления системы выпуска, расположенной перед точкой впрыска, и продолжают подачу продукта риформинга в нейтрализатор NOx Trap для осуществления десульфатации,exhaust gas flow is diverted from the branch point of the exhaust system located in front of the injection point, and the reformed product is continued to be fed into the NOx Trap to desulfate, при этом проведение этапов способа не оказывают влияния на степень обогащения топливной смеси дизельного двигателя.however, carrying out the steps of the method does not affect the degree of enrichment of the fuel mixture of a diesel engine. 2. Способ по п.1, отличающийся тем, что продолжительность этапа отвода отработанных газов задают заранее, в частности, продолжительность этого этапа составляет от 10 с до 20 мин.2. The method according to claim 1, characterized in that the duration of the exhaust gas stage is set in advance, in particular, the duration of this stage is from 10 s to 20 minutes 3. Способ по любому из пп.1 или 2, отличающийся тем, что продолжительность этапа подогрева задают заранее.3. The method according to any one of claims 1 or 2, characterized in that the duration of the heating step is set in advance. 4. Способ по п.1, отличающийся тем, что продолжительность по меньшей мере одного из этапов подогрева и/или отвода потока отработанных газов задают на основании измерения температуры.4. The method according to claim 1, characterized in that the duration of at least one of the stages of heating and / or exhaust flow of the exhaust gases is set based on a temperature measurement. 5. Способ по п.4, отличающийся тем, что в конце этапа отвода отработанных газов их снова направляют в нейтрализатор (6) NOx Trap и прекращают выработку продукта риформинга.5. The method according to claim 4, characterized in that at the end of the exhaust gas exhaust stage they are again sent to the NOx Trap converter (6) and the production of the reforming product is stopped. 6. Способ по п.1, отличающийся тем, что этапы подогрева и отвода отработанных газов циклически чередуются между собой, а выработка продукта риформинга продолжается во время этих циклов.6. The method according to claim 1, characterized in that the stages of heating and exhaust gas cyclically alternate with each other, and the development of the reforming product continues during these cycles. 7. Способ по п.1, отличающийся тем, что продукт риформинга вырабатывают путем риформинга с частичным окислением, риформинга с водяным паром или автотермического риформинга.7. The method according to claim 1, characterized in that the reforming product is produced by reforming with partial oxidation, reforming with water vapor or autothermal reforming. 8. Способ по п.1, в котором одновременно регенерируют фильтр-улавливатель (8) частиц, расположенный в системе выпуска на выходе из нейтрализатора (6) NOx Trap, при этом на этапе подогрева нейтрализатора NOx Trap расход продукта риформинга регулируют с целью достижения заданной температуры регенерации на выходе из фильтра-улавливателя частиц, а на этапе десульфатации нейтрализатора NOx Trap отработанные газы повторно подают в систему выпуска в точке повторного впрыска (10), расположенной на выходе из указанного нейтрализатора NOx Trap и на входе в фильтр-улавливатель частиц.8. The method according to claim 1, in which at the same time the particle filter catcher (8) is regenerated, located in the exhaust system at the outlet of the NOx Trap catalyst (6), while at the stage of heating the NOx Trap catalyst, the flow rate of the reforming product is regulated in order to achieve the desired the regeneration temperature at the outlet of the particle trap filter, and at the desulphation stage of the NOx Trap catalyst, the exhaust gases are re-fed to the exhaust system at the re-injection point (10) located at the outlet of the specified NOx Trap catalyst and at the inlet to the filter particle infuser. 9. Применение способа по п.8 для регенерации системы выпуска отработанных газов, содержащей два параллельно установленных нейтрализатора (6, 6b) NOx Trap, фильтр-улавливатель (8) частиц, расположенный на выходе из обоих нейтрализаторов NOx Trap, и клапанную систему (3), выполненную с возможностью распределения потока отработанных газов между нейтрализаторами NOx Trap, характеризующееся тем, что клапанная система (12) выполнена с возможностью распределения продукта риформинга, выходящего из риформинг-аппарата (4), между двумя параллельно расположенными точками впрыска (5, 5b) на входе в первый и второй нейтрализаторы NOx Trap соответственно.9. The application of the method of claim 8 for regenerating an exhaust system containing two NOx Trap converters (6, 6b) installed in parallel, a particle trap filter (8) located at the outlet of both NOx Trap converters, and a valve system (3 ), configured to distribute the exhaust gas flow between NOx Trap converters, characterized in that the valve system (12) is configured to distribute the reforming product exiting the reforming apparatus (4) between two parallel injection kami (5, 5b) at the entrance of the first and second converters respectively NOx Trap. 10. Применение по п.9, характеризующееся тем, что во время регенерации фильтра-улавливателя частиц (8) каждый из двух нейтрализаторов (6, 6b) NOx Trap находится попеременно то в фазе подогрева, то в фазе десульфатации.10. The use according to claim 9, characterized in that during the regeneration of the particle trap filter (8), each of the two NOx Trap converters (6, 6b) is alternately in the heating phase, then in the desulfation phase. 11. Применение по любому из пп.9 или 10, характеризующееся тем, что удаление NOx из каждого нейтрализатора NOx Trap происходит во время нахождения второго нейтрализатора NOx Trap в фазе десульфатации путем мгновенного переключения клапанных систем (3, 12).11. The use according to any one of claims 9 or 10, characterized in that the removal of NOx from each NOx Trap neutralizer occurs while the second NOx Trap neutralizer is in the desulfation phase by instantly switching valve systems (3, 12). 12. Система выпуска отработанных газов дизельных двигателей, содержащая нейтрализатор (6) NOx Trap и фильтр-улавливатель (8) частиц, установленный на выходе из нейтрализатора NOx Trap, отличающаяся тем, что она снабжена клапанной системой (3), установленной на входе в указанный нейтрализатор NOx Trap; отводной трубой (7), позволяющей отработанным газам обходить нейтрализатор NOx Trap и снова входить в систему выпуска в точке повторного впрыска (10), расположенной на входе в указанный фильтр-улавливатель частиц, риформинг-аппаратом (4) и вычислительным устройством (11), осуществляющим управление в соответствии со способом по п.8.12. The exhaust system of diesel engine exhausts comprising a NOx Trap converter (6) and a particle filter catcher (8) installed at the outlet of the NOx Trap converter, characterized in that it is equipped with a valve system (3) installed at the inlet of said NOx Trap Converter a discharge pipe (7) that allows the exhaust gases to bypass the NOx Trap and re-enter the exhaust system at the re-injection point (10) located at the inlet of the specified particle filter, reforming apparatus (4) and computing device (11), performing control in accordance with the method of claim 8. 13. Система выпуска отработанных газов дизельных двигателей для осуществления способа по любому из пп.9-11, содержащая два параллельно установленных нейтрализатора (6, 6b) NOx Trap, фильтр-улавливатель (8) частиц, расположенный на выходе из обоих нейтрализаторов NOx Trap, и клапанную систему (3), позволяющую распределять поток отработанных газов между двумя нейтрализаторами NOx Trap, отличающаяся тем, что снабжена риформинг-аппаратом (4), клапанной системой (12), выполненной с возможностью распределения продукта риформинга, выходящего из риформинг-аппарата (4), между двумя точками впрыска (5, 5b), расположенными параллельно на входе в первый и второй нейтрализаторы NOx Trap соответственно, и вычислительным устройством (11), осуществляющим данный способ.13. The exhaust system of diesel engine exhaust gases for implementing the method according to any one of claims 9-11, comprising two parallel NOx Trap converters (6, 6b), a particle filter-trap (8) located at the outlet of both NOx Trap converters, and a valve system (3) that allows you to distribute the exhaust gas flow between two NOx Trap converters, characterized in that it is equipped with a reforming apparatus (4), a valve system (12) configured to distribute the reforming product exiting the reforming apparatus ( 4), between two injection points (5, 5b) located in parallel at the entrance to the first and second NOx Trap converters, respectively, and a computing device (11) implementing this method. 14. Способ регенерации фильтра-улавливателя частиц (8) системы выпуска отработанных газов дизельных двигателей по п.12, характеризующийся этапами, на которых14. The method of regeneration of the particle filter-trap (8) of the exhaust system of diesel engines according to claim 12, characterized by the stages in which вырабатывают продукт риформинга из моторного топлива посредством риформинг-аппарата (4) и вводят (5) этот продукт риформинга в систему выпуска на выходе из клапанного устройства (3),producing a reforming product from motor fuel by means of a reforming apparatus (4) and introducing (5) this reforming product into the exhaust system at the outlet of the valve device (3), отводят поток отработанных газов в отводную трубу (7) и повторно вводят эти газы в фильтр-улавливатель (8) частиц,a stream of exhaust gases is diverted to the exhaust pipe (7) and these gases are reintroduced into the particle filter-trap (8), осуществляют окисление продукта риформинга отработанными газами на уровне активной поверхности фильтра-улавливателя частиц. carry out the oxidation of the reforming product with exhaust gases at the level of the active surface of the particle trap filter.
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