The reduction of noxious emissions using urea based on selective non-catalytic reduction in small scale bio fuel combustion system
Selective Non-Catalytic Reduction (SNCR) of oxides of nitrogen (NOx) was studied experimentally by injecting different concentrations of aqueous urea solution in a pilot-scale Bio-fuel fired tunnel furnace at 3-4 % excess oxygen level and with low ppm of baseline NOx ranging from 65 to 75 ppm within...
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| Format: | Article |
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Canadian Center of Science and Education
2011
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| _version_ | 1796856610128134144 |
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| author | Ashrul Ishak, Mohamad Shaiful Mohd. Jaafar, Mohammad Nazri |
| author_facet | Ashrul Ishak, Mohamad Shaiful Mohd. Jaafar, Mohammad Nazri |
| author_sort | Ashrul Ishak, Mohamad Shaiful |
| collection | ePrints |
| description | Selective Non-Catalytic Reduction (SNCR) of oxides of nitrogen (NOx) was studied experimentally by injecting different concentrations of aqueous urea solution in a pilot-scale Bio-fuel fired 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 small-scale combustion systems where the operating temperatures are usually in the range of about 973 to 1323 K and NOx emission level remains below 100 ppm. NOx reductions were studied with the variation of different parameters such as injection temperature, residence time, Normalized Stoichiometric Ratio (NSR) of the reagent, carrier gas pressure, etc. A significant amount of NOx reduction was achieved which was not pronounced by the previous researchers with urea SNCR for this low ppm of NOx. With 5% plain urea solution, at an NSR of 4 as much as 54% reduction was achieved at 1128 K, whilst in the additive case the NOx reduction was improved to as much as 69% at 1093 K. |
| first_indexed | 2024-03-05T18:45:36Z |
| format | Article |
| id | utm.eprints-29775 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T18:45:36Z |
| publishDate | 2011 |
| publisher | Canadian Center of Science and Education |
| record_format | dspace |
| spelling | utm.eprints-297752017-10-23T16:11:33Z http://eprints.utm.my/29775/ The reduction of noxious emissions using urea based on selective non-catalytic reduction in small scale bio fuel combustion system Ashrul Ishak, Mohamad Shaiful Mohd. Jaafar, Mohammad Nazri TJ Mechanical engineering and machinery Selective Non-Catalytic Reduction (SNCR) of oxides of nitrogen (NOx) was studied experimentally by injecting different concentrations of aqueous urea solution in a pilot-scale Bio-fuel fired 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 small-scale combustion systems where the operating temperatures are usually in the range of about 973 to 1323 K and NOx emission level remains below 100 ppm. NOx reductions were studied with the variation of different parameters such as injection temperature, residence time, Normalized Stoichiometric Ratio (NSR) of the reagent, carrier gas pressure, etc. A significant amount of NOx reduction was achieved which was not pronounced by the previous researchers with urea SNCR for this low ppm of NOx. With 5% plain urea solution, at an NSR of 4 as much as 54% reduction was achieved at 1128 K, whilst in the additive case the NOx reduction was improved to as much as 69% at 1093 K. Canadian Center of Science and Education 2011 Article PeerReviewed Ashrul Ishak, Mohamad Shaiful and Mohd. Jaafar, Mohammad Nazri (2011) The reduction of noxious emissions using urea based on selective non-catalytic reduction in small scale bio fuel combustion system. Modern Applied Science, 5 (2). pp. 108-112. ISSN 1913-1844 http://dx.doi.org/10.5539/mas.v5n2p108 10.5539/mas.v5n2p108 |
| spellingShingle | TJ Mechanical engineering and machinery Ashrul Ishak, Mohamad Shaiful Mohd. Jaafar, Mohammad Nazri The reduction of noxious emissions using urea based on selective non-catalytic reduction in small scale bio fuel combustion system |
| title | The reduction of noxious emissions using urea based on selective non-catalytic reduction in small scale bio fuel combustion system |
| title_full | The reduction of noxious emissions using urea based on selective non-catalytic reduction in small scale bio fuel combustion system |
| title_fullStr | The reduction of noxious emissions using urea based on selective non-catalytic reduction in small scale bio fuel combustion system |
| title_full_unstemmed | The reduction of noxious emissions using urea based on selective non-catalytic reduction in small scale bio fuel combustion system |
| title_short | The reduction of noxious emissions using urea based on selective non-catalytic reduction in small scale bio fuel combustion system |
| title_sort | reduction of noxious emissions using urea based on selective non catalytic reduction in small scale bio fuel combustion system |
| topic | TJ Mechanical engineering and machinery |
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