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A deactivation mech...
A deactivation mechanism study of phosphorus-poisoned diesel oxidation catalysts: Model and supplier catalysts
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- Wang, Aiyong, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Competence Ctr Catalysis, Chem Engn, Gothenburg, Sweden.
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- Wang, Jihao (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Competence Ctr Catalysis, Chem Engn, Gothenburg, Sweden.
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- Sheti, Sahil (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Competence Ctr Catalysis, Chem Engn, Gothenburg, Sweden.
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- Dahlin, Sandra (author)
- KTH,Processteknologi,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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- Han, Joonsoo, 1990 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Competence Ctr Catalysis, Chem Engn, Gothenburg, Sweden.
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- Woo, Jung Won, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Xie, Kunpeng, 1985 (author)
- Volvo Cars,Volvo Grp Trucks Technol, SE-40508 Gothenburg, Sweden.
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- Pettersson, Lars (author)
- KTH,Processteknologi,Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
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- Olsson, Louise, 1974 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Univ Technol, Competence Ctr Catalysis, Chem Engn, Gothenburg, Sweden.
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- Woo, Jungwon (author)
- Chalmers Univ Technol, Competence Ctr Catalysis, Chem Engn, Gothenburg, Sweden.
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Chalmers tekniska högskola Chalmers Univ Technol, Competence Ctr Catalysis, Chem Engn, Gothenburg, Sweden (creator_code:org_t)
- 2020
- 2020
- English.
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In: Catalysis Science and Technology. - : Royal Society of Chemistry (RSC). - 2044-4753 .- 2044-4761. ; 10:16, s. 5602-5617
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Abstract
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- The effect of phosphorus poisoning on the catalytic behavior of diesel oxidation catalysts was investigated over model and supplier monolith catalysts, i.e., Pd-Pt/Al2O3. The results of ICP and XPS from the vapor-phase poisoning over model catalysts suggested that the temperature of phosphorus poisoning affects both the overall content of phosphorus and the dispersion of phosphorus (i.e., inlet/outlet and surface/bulk). Phosphorus oxide (P2O5), metaphosphate (PO3-), and phosphate (PO43-) were identified in the poisoned model and supplier catalysts. The distribution of these species on poisoned model catalysts was highly dependent on the poisoning temperature, i.e., a higher temperature resulted in a higher concentration of PO43-. The outlets of the monoliths contained more PO43- and less P2O5 than the inlets. Both active sites and surface OH groups on model and supplier catalysts were contaminated upon phosphorus poisoning. It is found that PO43- had a stronger influence on the active sites than P2O5. One significant finding in this study is that the vapor-phase phosphorus poisoning could be a practical and cost efficient approach to simulate an accelerated aging/poisoning process.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
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- By the author/editor
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Wang, Aiyong, 19 ...
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Wang, Jihao
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Sheti, Sahil
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Dahlin, Sandra
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Han, Joonsoo, 19 ...
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Woo, Jung Won, 1 ...
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show more...
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Xie, Kunpeng, 19 ...
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Pettersson, Lars
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Olsson, Louise, ...
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Woo, Jungwon
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Chemical Process ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Other Chemical E ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Other Chemistry ...
- Articles in the publication
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Catalysis Scienc ...
- By the university
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Chalmers University of Technology
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Royal Institute of Technology