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Modeling of exhaust...
Modeling of exhaust gas cleaning by acid pollutant conversion to aerosol particles
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- Olenius, Tinja (author)
- Stockholm University,Stockholms universitet,Institutionen för miljövetenskap,Swedish Meteorological and Hydrological Institute, Sweden
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- Heitto, Arto (author)
- University of Eastern Finland
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- Roldin, Pontus (author)
- Lund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Environmental and Climate Science (CEC),Faculty of Science,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Yli-Juuti, Taina (author)
- University of Eastern Finland
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- Duwig, Christophe (author)
- KTH Royal Institute of Technology,KTH,Processteknologi,Dept Engn Mech, SE-10044 Stockholm, Sweden.
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(creator_code:org_t)
- Elsevier BV, 2021
- 2021
- English.
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In: Fuel. - : Elsevier BV. - 0016-2361 .- 1873-7153. ; 290
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Abstract
Subject headings
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- Sulfur and nitrogen oxides (SOx and NOx) are harmful pollutants emitted into the atmosphere by industry and transport sectors. In addition to being hazardous gases, SOx and NOx form sulfuric and nitric acids which contribute to the formation of airborne particulate matter through nucleation and condensation, hence magnifying the environmental impact of these species. In this work, we build a modeling framework for utilizing this phenomenon for low-temperature exhaust gas cleaning. It has been reported that ammonia gas can be used to facilitate particle formation from the aforementioned acids, and thus remove these gaseous pollutants by converting them into ammonium sulfate and nitrate particles. Here we provide comprehensive modeling tools for applying this idea to exhaust gas cleaning by combining detailed models for nucleation, gas-particle mass exchange and particle population dynamics. We demonstrate how these models can be used to find advantageous operating conditions for a cleaning unit. In particular, the full model is computationally cheap and enables optimization of the particle formation efficiency and particle growth, hence ensuring sufficient conversion of gaseous pollutants into collectable particulate matter. This constitutes a ground for future engineering tools for designing next-generation sustainable exhaust gas cleaners.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Exhaust gas cleaning
- Modeling
- De-SOx
- De-NOx
- Aerosol
- Nanoparticle formation
- Aerosol
- De-NO
- De-SO
- Exhaust gas cleaning
- Modeling
- Nanoparticle formation
Publication and Content Type
- ref (subject category)
- art (subject category)
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