- Tytuł:
- The effect of Pt internal catalyst on relative carcinogenic coefficient (RCC) of polycyclic aromatic hydrocarbons (PAHs) emitted from diesel engine
- Autorzy:
-
Janicka, A.
Walkowiak, W.
Szczepaniak, W. - Powiązania:
- https://bibliotekanauki.pl/articles/247594.pdf
- Data publikacji:
- 2008
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
internal catalyst
polycyclic aromatic hydrocarbons
relative carcinogenic coefficient
diesel engine - Opis:
- One of the main anthropogenic sources of PAHs emission is motorization, especially compression ignition engines. The researches of International Agency for Research on Cancer (IARC) proved that some compounds from polycyclic aromatic hydrocarbons group are toxic for live organisms and cause damages of adrenal glands, lymphatic, circulation and respiratory systems. Because of carcinogenic properties and common occurrence in human environment benzo(a)pirene has been accepted as polycyclic aromatic hydrocarbons indicator. In relation to benzo(a)pirene, Nisbet and LaGoy determined relative carcinogenic coefficients (RCC) for individual polycyclic aromatic hydrocarbons. The paper presents results of analysis of PAHs RCC emitted from SB3.1 self-ignition engine with Pt active coating application inside. The catalyst was applied on engine valves surface. Zirconium ceramic was chosen as a coating for catalyst application (also because of its thermo-isolating properties). Because of unstable parameters of self-ignition engine work (pressure and temperature jumps), PAHs were extracted from two phases: gas phase and solid phase (particle matter - PM). A chromatographic method of polycyclic aromatic hydrocarbons identification and analysis, because of their low level of concentration in exhaust gases, needed to be supported by sample purification and enrichment stages. It has been found that implementation of catalytic coating on valves of the engine causes decrease of polycyclic aromatic hydrocarbons concentration in exhaust gases, what results in decrease (in most cases) of the sum of relative carcinogenic coefficient of polycyclic aromatic hydrocarbons.
- Źródło:
-
Journal of KONES; 2008, 15, 3; 209-213
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki
Artykuł