Micro- and Nanostructural Characteristics of Particles Before and After an Exhaust Gas Recirculation System Scrubber
This work provides insight into the morphology and mixing state of submicron particles in diesel exhaust from a ship engine with an exhaust gas recirculation scrubber. Particles from this low-speed ship engine on test bed were collected using a microinertial impactor with transmission electron micro...
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| Veröffentlicht in: | Aerosol science and technology 2013-09, Vol.47 (9), p.1038-1046 |
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| container_title | Aerosol science and technology |
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| creator | Lieke, Kirsten Inga Rosenørn, Thomas Pedersen, Jannik Larsson, David Kling, Jens Fuglsang, Karsten Bilde, Merete |
| description | This work provides insight into the morphology and mixing state of submicron particles in diesel exhaust from a ship engine with an exhaust gas recirculation scrubber. Particles from this low-speed ship engine on test bed were collected using a microinertial impactor with transmission electron microscopy (TEM) grids on two stages. Micro- and nanostructural characteristics of single particles were studied by TEM. Image analysis was carried out on overview and high-resolution images, revealing influence of the exhaust gas treatment (scrubber) on the particle morphology and mixing state. Soot agglomerates were found to be collapsed after scrubber, reflected by their change in fractal dimension (D
f
) from 1.88 to 2.13. Soot was predominantly found internally mixed with other components, with a higher degree of internal mixing observed after scrubber. Soot nanostructural characteristics on the near atomic scale such as layer distance, lamella length, and tortuosity were not observed to be influenced by the scrubber. We also found that particles in the size range between 30 and 50 nm, which were abundant in the exhaust before and after scrubber, were not graphitic soot. Furthermore, we found indications that these particles are composed of other crystalline material (salts).
Copyright 2013 American Association for Aerosol Research |
| doi_str_mv | 10.1080/02786826.2013.813012 |
| format | Article |
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f
) from 1.88 to 2.13. Soot was predominantly found internally mixed with other components, with a higher degree of internal mixing observed after scrubber. Soot nanostructural characteristics on the near atomic scale such as layer distance, lamella length, and tortuosity were not observed to be influenced by the scrubber. We also found that particles in the size range between 30 and 50 nm, which were abundant in the exhaust before and after scrubber, were not graphitic soot. Furthermore, we found indications that these particles are composed of other crystalline material (salts).
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f
) from 1.88 to 2.13. Soot was predominantly found internally mixed with other components, with a higher degree of internal mixing observed after scrubber. Soot nanostructural characteristics on the near atomic scale such as layer distance, lamella length, and tortuosity were not observed to be influenced by the scrubber. We also found that particles in the size range between 30 and 50 nm, which were abundant in the exhaust before and after scrubber, were not graphitic soot. Furthermore, we found indications that these particles are composed of other crystalline material (salts).
Copyright 2013 American Association for Aerosol Research</description><subject>Aerosols</subject><subject>Atmospheric aerosols</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Morphology</subject><subject>Nanoparticles</subject><subject>Transmission electron microscopy</subject><issn>0278-6826</issn><issn>1521-7388</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp9kE1rGzEQhkVpIY7bf5CDoOS4rkZarZRTSE2aFtIPmuQsxlqJbFiv0pGW1v--cp3k2NMMw_O-Aw9jJyBWIKz4IKSxnZXdSgpQKwtKgHzFFqAlNEZZ-5ot9kizZ47Ycc4PQggwEhasfB08pYbj1PNvOKVcaPZlJhz5-h4JfQk05DL4zFPkP5DqOobMP4aYKPyLXcTK1I1f_rnHORd-hZn_DH4gP49YhjTxm10uYctvPM2bTaC37E3EMYd3T3PJ7j5d3q4_N9ffr76sL64b3yooDWw6o7qg29DGNoLslJJaKh0CSgU61jNau5FeSxOjtNL0HmJ_1nsjRe-9WrL3h95HSr_mkIt7SDNN9aWDVp-12na1c8naA1VF5Ewhukcatkg7B8Lt_bpnv27v1x381tjpUzlmj2MknPyQX7LSdNKA1ZU7P3DDVJVt8XeisXcFd2Oi55D676e_nc2PIA</recordid><startdate>20130901</startdate><enddate>20130901</enddate><creator>Lieke, Kirsten Inga</creator><creator>Rosenørn, Thomas</creator><creator>Pedersen, Jannik</creator><creator>Larsson, David</creator><creator>Kling, Jens</creator><creator>Fuglsang, Karsten</creator><creator>Bilde, Merete</creator><general>Taylor & Francis Group</general><general>Taylor & Francis</general><general>Taylor & Francis Ltd</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7TG</scope><scope>8FD</scope><scope>FR3</scope><scope>KL.</scope></search><sort><creationdate>20130901</creationdate><title>Micro- and Nanostructural Characteristics of Particles Before and After an Exhaust Gas Recirculation System Scrubber</title><author>Lieke, Kirsten Inga ; Rosenørn, Thomas ; Pedersen, Jannik ; Larsson, David ; Kling, Jens ; Fuglsang, Karsten ; Bilde, Merete</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c431t-1b6736e54e4f4f1263325235eea2315fe4fa88b2c527ff2827dc1fd9dc720dcc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Aerosols</topic><topic>Atmospheric aerosols</topic><topic>Chemistry</topic><topic>Colloidal state and disperse state</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Morphology</topic><topic>Nanoparticles</topic><topic>Transmission electron microscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lieke, Kirsten Inga</creatorcontrib><creatorcontrib>Rosenørn, Thomas</creatorcontrib><creatorcontrib>Pedersen, Jannik</creatorcontrib><creatorcontrib>Larsson, David</creatorcontrib><creatorcontrib>Kling, Jens</creatorcontrib><creatorcontrib>Fuglsang, Karsten</creatorcontrib><creatorcontrib>Bilde, Merete</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><jtitle>Aerosol science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lieke, Kirsten Inga</au><au>Rosenørn, Thomas</au><au>Pedersen, Jannik</au><au>Larsson, David</au><au>Kling, Jens</au><au>Fuglsang, Karsten</au><au>Bilde, Merete</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Micro- and Nanostructural Characteristics of Particles Before and After an Exhaust Gas Recirculation System Scrubber</atitle><jtitle>Aerosol science and technology</jtitle><date>2013-09-01</date><risdate>2013</risdate><volume>47</volume><issue>9</issue><spage>1038</spage><epage>1046</epage><pages>1038-1046</pages><issn>0278-6826</issn><eissn>1521-7388</eissn><coden>ASTYDQ</coden><abstract>This work provides insight into the morphology and mixing state of submicron particles in diesel exhaust from a ship engine with an exhaust gas recirculation scrubber. Particles from this low-speed ship engine on test bed were collected using a microinertial impactor with transmission electron microscopy (TEM) grids on two stages. Micro- and nanostructural characteristics of single particles were studied by TEM. Image analysis was carried out on overview and high-resolution images, revealing influence of the exhaust gas treatment (scrubber) on the particle morphology and mixing state. Soot agglomerates were found to be collapsed after scrubber, reflected by their change in fractal dimension (D
f
) from 1.88 to 2.13. Soot was predominantly found internally mixed with other components, with a higher degree of internal mixing observed after scrubber. Soot nanostructural characteristics on the near atomic scale such as layer distance, lamella length, and tortuosity were not observed to be influenced by the scrubber. We also found that particles in the size range between 30 and 50 nm, which were abundant in the exhaust before and after scrubber, were not graphitic soot. Furthermore, we found indications that these particles are composed of other crystalline material (salts).
Copyright 2013 American Association for Aerosol Research</abstract><cop>Colchester</cop><pub>Taylor & Francis Group</pub><doi>10.1080/02786826.2013.813012</doi><tpages>9</tpages></addata></record> |
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| subjects | Aerosols Atmospheric aerosols Chemistry Colloidal state and disperse state Exact sciences and technology General and physical chemistry Morphology Nanoparticles Transmission electron microscopy |
| title | Micro- and Nanostructural Characteristics of Particles Before and After an Exhaust Gas Recirculation System Scrubber |
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