PtPd-CeO2/γ-Al2O3 catalysts for voc treatment of exhaust gases

Tatiana Yuzhakova, József Kovács, Ákos Rédey, Rares Scurtu, Zsófia Kovács, Viola Somogyi, Endre Domokos, István Ráduly, Lenke Ráduly

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The study was focused on the catalytic elimination of hydrocarbons from the exhaust gases of car engines. Moreover the quantitative determination of the BTEX components (benzene, toluene, ethyl-benzene, m-, p-, o- xylenes) of the exhaust gases was carried out for untreated and treated model exhaust gases using gas mixture containing BTEX components in amount of 1 ppm. Aggregator without three-way catalyst was used for simulation of the exhaust gas mixture which is similar to that of Ottotype engines. PtPd-CeO2/γ-Al2O3 catalyst was used for the treatment of exhaust gas in the catalytic test system. The catalyst was prepared by impregnation method. Active components of the catalytic system included ceria and noble metals (Pt, Pd < 1 wt%). γ- Al2O3 was used as a support. Untreated and treated exhaust model gases were investigated by GC and GC-MS off-line analytical techniques. About 65 hydrocarbon components were identified in the untreated exhaust gas. Mainly olefins (e.g. ethylene, acetylene, propylene), iso-, normal paraffins (C4-C9) and cyclic hydrocarbons having one aromatic ring (e.g. benzene, propylbenzene) were detected. The primary results indicated that the catalytic conversion of hydrocarbons including BTEX was in the range of 23-100 %.

Original languageEnglish
Pages (from-to)1963-1968
Number of pages6
JournalEnvironmental Engineering and Management Journal
Volume11
Issue number11
DOIs
Publication statusPublished - 2012

Keywords

  • BTEX concentration
  • Exhaust gas composition
  • GC-MS analysis

ASJC Scopus subject areas

  • Environmental Engineering
  • Pollution
  • Management, Monitoring, Policy and Law

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    Yuzhakova, T., Kovács, J., Rédey, Á., Scurtu, R., Kovács, Z., Somogyi, V., Domokos, E., Ráduly, I., & Ráduly, L. (2012). PtPd-CeO2/γ-Al2O3 catalysts for voc treatment of exhaust gases. Environmental Engineering and Management Journal, 11(11), 1963-1968. https://doi.org/10.30638/eemj.2012.245