Application of selective non-catalytic reduction of NOx in small-scale combustion systems
The selective non-catalytic reduction of NOx has been studied experimentally employing commercial grade urea in a pilot-scale diesel-�red tunnel furnace at 3–4% excess oxygen level and with low ppm of baseline NOx ranging from 65 to 75 ppm within the investigated temperature range. The furnace s...
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| Format: | Article |
| Language: | English |
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Elsevier
2004
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| Online Access: | http://eprints.utm.my/68/ http://eprints.utm.my/68/1/faridnasiraniAtmEnv38_2004.pdf |
| _version_ | 1848889840468230144 |
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| author | Abul Hossain, Khandoker Mohd Jaafar, Mohammad Nazri Mustafa, Azeman Appalanidu, Kiran Babu Ani, Farid Nasir |
| author_facet | Abul Hossain, Khandoker Mohd Jaafar, Mohammad Nazri Mustafa, Azeman Appalanidu, Kiran Babu Ani, Farid Nasir |
| author_sort | Abul Hossain, Khandoker |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | The selective non-catalytic reduction of NOx has been studied experimentally employing commercial grade urea in a pilot-scale diesel-�red tunnel furnace at 3–4% excess oxygen level and with low ppm of baseline NOx ranging from 65 to 75 ppm within the investigated temperature range. The furnace simulated the thermal behavior of small-scale combustion systems such as small capacity boilers, water heaters, oil heaters, etc., where the operating temperatures remain within the range of 950–1300 K. NOx reductions were studied with the variation of injection temperature, residence time, normalized stoichiometric ratio (NSR) of the reagent, etc. With 5% urea solution, at an NSR of 4, as much as 54% reduction was achieved at 1128 K. The result is quite signi�cant, especially for the investigated level of baseline NOx. The ammonia slip measurements showed that the slip was below 16 ppm at NSR of 4 and optimum temperature of NOx reduction. Finally, the investigations have demonstrated that selective non-catalytic reduction process is quite applicable to the small-scale combustion applications. |
| first_indexed | 2025-11-15T20:32:34Z |
| format | Article |
| id | utm-68 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:32:34Z |
| publishDate | 2004 |
| publisher | Elsevier |
| recordtype | eprints |
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| spelling | utm-682017-05-30T07:37:08Z http://eprints.utm.my/68/ Application of selective non-catalytic reduction of NOx in small-scale combustion systems Abul Hossain, Khandoker Mohd Jaafar, Mohammad Nazri Mustafa, Azeman Appalanidu, Kiran Babu Ani, Farid Nasir TJ Mechanical engineering and machinery The selective non-catalytic reduction of NOx has been studied experimentally employing commercial grade urea in a pilot-scale diesel-�red tunnel furnace at 3–4% excess oxygen level and with low ppm of baseline NOx ranging from 65 to 75 ppm within the investigated temperature range. The furnace simulated the thermal behavior of small-scale combustion systems such as small capacity boilers, water heaters, oil heaters, etc., where the operating temperatures remain within the range of 950–1300 K. NOx reductions were studied with the variation of injection temperature, residence time, normalized stoichiometric ratio (NSR) of the reagent, etc. With 5% urea solution, at an NSR of 4, as much as 54% reduction was achieved at 1128 K. The result is quite signi�cant, especially for the investigated level of baseline NOx. The ammonia slip measurements showed that the slip was below 16 ppm at NSR of 4 and optimum temperature of NOx reduction. Finally, the investigations have demonstrated that selective non-catalytic reduction process is quite applicable to the small-scale combustion applications. Elsevier 2004-12 Article PeerReviewed application/pdf en http://eprints.utm.my/68/1/faridnasiraniAtmEnv38_2004.pdf Abul Hossain, Khandoker and Mohd Jaafar, Mohammad Nazri and Mustafa, Azeman and Appalanidu, Kiran Babu and Ani, Farid Nasir (2004) Application of selective non-catalytic reduction of NOx in small-scale combustion systems. Atmospheric Environment, 38 (39). pp. 6823-6828. ISSN 1352-2310 http://dx.doi.org/10.1016/j.atmosenv.2004.09.012 DOI:10.1016/j.atmosenv.2004.09.012 |
| spellingShingle | TJ Mechanical engineering and machinery Abul Hossain, Khandoker Mohd Jaafar, Mohammad Nazri Mustafa, Azeman Appalanidu, Kiran Babu Ani, Farid Nasir Application of selective non-catalytic reduction of NOx in small-scale combustion systems |
| title | Application of selective non-catalytic reduction of NOx in small-scale combustion systems |
| title_full | Application of selective non-catalytic reduction of NOx in small-scale combustion systems |
| title_fullStr | Application of selective non-catalytic reduction of NOx in small-scale combustion systems |
| title_full_unstemmed | Application of selective non-catalytic reduction of NOx in small-scale combustion systems |
| title_short | Application of selective non-catalytic reduction of NOx in small-scale combustion systems |
| title_sort | application of selective non-catalytic reduction of nox in small-scale combustion systems |
| topic | TJ Mechanical engineering and machinery |
| url | http://eprints.utm.my/68/ http://eprints.utm.my/68/ http://eprints.utm.my/68/ http://eprints.utm.my/68/1/faridnasiraniAtmEnv38_2004.pdf |