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Achieving an ultral...
Achieving an ultralow emission of nitrogen oxides by using activated carbon with hydrophobic modification
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- Fang, Z. (author)
- Key Laboratory of Pressure Systems and Safety (MOE), School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China
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Tao, J. (author)
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- Yu, X. (author)
- Key Laboratory of Pressure Systems and Safety (MOE), School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China
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- Zhao, S. (author)
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
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- Li, Hailong, 1976- (author)
- Mälardalens högskola,Framtidens energi
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- Tu, S. -T (author)
- Key Laboratory of Pressure Systems and Safety (MOE), School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, China
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(creator_code:org_t)
- Elsevier Ltd, 2021
- 2021
- English.
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In: Journal of Cleaner Production. - : Elsevier Ltd. - 0959-6526 .- 1879-1786. ; 315
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Selective noncatalytic reduction (SNCR) systems have been widely used for denitrification in small capacity boilers, such as biomass- and waste-fueled boilers. However, these systems cannot meet the requirements of ultralow emission regulations, i.e., 50 mg m−3. This work proposes a new solution that combines SNCR and activated carbon (AC). To solve the problem caused by the wettability of AC, which can significantly reduce the quantity of NOx that can be adsorbed and block active cites, hydrophobic modification was employed to amend the properties of AC. The influences of the key operating parameters on the denitrification of AC, including the reaction temperature, O2 concentration, feed gas flow rate, and contents of SO2 and CO2, have been investigated experimentally. A novel solution that combines AC and SNCR was proposed for industrial applications, and the economic feasibility has been verified. The results have demonstrated that this hybrid solution can achieve a low levelized cost of denitrification, which is 59.8% and 33.7% lower than those of SCR and hybrid SNCR/SCR.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Keyword
- Activated carbon
- Denitrification
- Economic feasibility
- Hydrophobic modification
- Molecular dynamics simulation
- Ultralow emission
- Boilers
- Flow of gases
- Molecular dynamics
- Nitrogen oxides
- Reaction kinetics
- % reductions
- Dynamics simulation
- Economic feasibilities
- Emissions regulations
- New solutions
- Non-catalytic
- Reduction systems
- Small capacity boiler
- Ultralow emissions
- Hydrophobicity
Publication and Content Type
- ref (subject category)
- art (subject category)
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