Ozone-Catalytic Treatment of Automotive Exhaust
In the paper, an original design of an ozone-catalytic device, in which the process of ozone formation occurs directly inside the catalyst monolith of the honeycomb structure, is proposed for solving the problem of exhaust gases purification at the "cold start" of an automobile engine. Fo...
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| Format: | Article |
| Language: | English |
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al-Farabi Kazakh National University
2024-10-01
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| Series: | Eurasian Chemico-Technological Journal |
| Subjects: | |
| Online Access: | https://ect-journal.kz/index.php/ectj/article/view/1637 |
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| author | S.R. Khairulin D.V. Maksudov M.A. Kerzhentsev A.V. Salnikov Z.R. Ismagilov |
| author_facet | S.R. Khairulin D.V. Maksudov M.A. Kerzhentsev A.V. Salnikov Z.R. Ismagilov |
| author_sort | S.R. Khairulin |
| collection | DOAJ |
| description |
In the paper, an original design of an ozone-catalytic device, in which the process of ozone formation occurs directly inside the catalyst monolith of the honeycomb structure, is proposed for solving the problem of exhaust gases purification at the "cold start" of an automobile engine. For the considered device, various regimes of operation were examined, and the equations allowing us to calculate the concentrations of ozone depending on time were obtained. The developed mathematical model shows a significant decrease in ozone concentration after the "cold start" is over and the temperature of the exhaust gases increases, because of changes in the balance of various chemical reactions. Thus, the ozone concentration is maximum during a cold start, precisely when the lower temperatures do not allow other reactions than those of oxidation of toxic gases with ozone, and decreases by the time the catalytic unit warms up, when effective neutralization of toxic impurities becomes possible without the participation of ozone. The results of the mathematical modeling were confirmed by testing this device for purifying exhaust gases of a YaMZ-238M2 engine. The test results show that the use of ozone-catalytic reactions significantly increases the efficiency of neutralizing toxic impurities under cold start conditions, compared to the case when only catalytic reactions with oxygen without the participation of ozone are used.
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| format | Article |
| id | doaj-art-9cf965effd5646d6b433b219c685517d |
| institution | Kabale University |
| issn | 1562-3920 2522-4867 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | al-Farabi Kazakh National University |
| record_format | Article |
| series | Eurasian Chemico-Technological Journal |
| spelling | doaj-art-9cf965effd5646d6b433b219c685517d2025-01-29T15:42:11Zengal-Farabi Kazakh National UniversityEurasian Chemico-Technological Journal1562-39202522-48672024-10-0126310.18321/ectj1637Ozone-Catalytic Treatment of Automotive ExhaustS.R. Khairulin0D.V. Maksudov1M.A. Kerzhentsev2A.V. Salnikov3Z.R. Ismagilov4Boreskov Institute of Catalysis SB RAS, pr. Ak. Lavrentieva 5, 630090 Novosibirsk, RussiaUfa University of Science and Technology, st. Zaki Validi, 32, Ufa, Rep. Bashkortostan, RussiaBoreskov Institute of Catalysis SB RAS, pr. Ak. Lavrentieva 5, 630090 Novosibirsk, RussiaBoreskov Institute of Catalysis SB RAS, pr. Ak. Lavrentieva 5, 630090 Novosibirsk, RussiaBoreskov Institute of Catalysis SB RAS, pr. Ak. Lavrentieva 5, 630090 Novosibirsk, Russia In the paper, an original design of an ozone-catalytic device, in which the process of ozone formation occurs directly inside the catalyst monolith of the honeycomb structure, is proposed for solving the problem of exhaust gases purification at the "cold start" of an automobile engine. For the considered device, various regimes of operation were examined, and the equations allowing us to calculate the concentrations of ozone depending on time were obtained. The developed mathematical model shows a significant decrease in ozone concentration after the "cold start" is over and the temperature of the exhaust gases increases, because of changes in the balance of various chemical reactions. Thus, the ozone concentration is maximum during a cold start, precisely when the lower temperatures do not allow other reactions than those of oxidation of toxic gases with ozone, and decreases by the time the catalytic unit warms up, when effective neutralization of toxic impurities becomes possible without the participation of ozone. The results of the mathematical modeling were confirmed by testing this device for purifying exhaust gases of a YaMZ-238M2 engine. The test results show that the use of ozone-catalytic reactions significantly increases the efficiency of neutralizing toxic impurities under cold start conditions, compared to the case when only catalytic reactions with oxygen without the participation of ozone are used. https://ect-journal.kz/index.php/ectj/article/view/1637ozone, ozone-catalytic device, catalyst, honeycomb structure, exhaust gases treatment |
| spellingShingle | S.R. Khairulin D.V. Maksudov M.A. Kerzhentsev A.V. Salnikov Z.R. Ismagilov Ozone-Catalytic Treatment of Automotive Exhaust Eurasian Chemico-Technological Journal ozone, ozone-catalytic device, catalyst, honeycomb structure, exhaust gases treatment |
| title | Ozone-Catalytic Treatment of Automotive Exhaust |
| title_full | Ozone-Catalytic Treatment of Automotive Exhaust |
| title_fullStr | Ozone-Catalytic Treatment of Automotive Exhaust |
| title_full_unstemmed | Ozone-Catalytic Treatment of Automotive Exhaust |
| title_short | Ozone-Catalytic Treatment of Automotive Exhaust |
| title_sort | ozone catalytic treatment of automotive exhaust |
| topic | ozone, ozone-catalytic device, catalyst, honeycomb structure, exhaust gases treatment |
| url | https://ect-journal.kz/index.php/ectj/article/view/1637 |
| work_keys_str_mv | AT srkhairulin ozonecatalytictreatmentofautomotiveexhaust AT dvmaksudov ozonecatalytictreatmentofautomotiveexhaust AT makerzhentsev ozonecatalytictreatmentofautomotiveexhaust AT avsalnikov ozonecatalytictreatmentofautomotiveexhaust AT zrismagilov ozonecatalytictreatmentofautomotiveexhaust |