caa a22 4500 467888795 CHVBK 20180406152742.0 cr unu---uuuuu 170328e20060401xx s 000 0 eng 10.1007/s11144-006-0044-0 doi (NATIONALLICENCE)springer-10.1007/s11144-006-0044-0 Hydrodechlorination of chlorophenols over Pt- and Co-containing ZSM-5 zeolite catalysts [Elektronische Daten] [János Halász, Szilvia Mészáros, István Hannus] Summary: Some of the chlorinated organic compounds are widely used commercially because of their advantageous chemical/physical properties or being toxic to pestiferous living substances. We have prepared and applied monometallic Co-, Pt- and bimetallic Co,Pt-ZSM-5 zeolite catalysts for hydrotreating 2- and 4-chlorophenols in the temperature range of 300-400 oC using a fixed-bed laboratory reactor system equipped with a gas chromatograph for analysis. In the reaction over the Pt-containing catalyst high initial conversion can be observed, the compounds transform to cyclohexanone, however, the activity of the catalyst decreases even during the 2 h reaction time. In the presence of Co-ZSM-5, the main reaction is simple hydrodechlorination resulting in phenol as the main product, and this catalyst is stable, and the activity does not change. The bimetallic catalyst combines the advantages (and disadvantages) of the monometallic samples. The hydroconversion of chlorophenols resulted in the formation of cyclohexanone with high initial selectivity. However, because of the relatively short catalyst lifetime further optimization is necessary before practical application.</o:p> Springer-Verlag/Akadémiai Kiadó, 2006 cyclohexanone nationallicence chlorophenols nationallicence Hydrodechlorination nationallicence ZSM-5 zeolites nationallicence Halász János Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, H-6720 Szeged, Hungary aut Mészáros Szilvia Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, H-6720 Szeged, Hungary aut Hannus István aDepartment of Applied and Environmental Chemistry, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, H-6720 Szeged, Hungary, H-6720, Szeged aut Reaction Kinetics and Catalysis Letters Kluwer Academic Publishers 87/2(2006-04-01), 359-365 0133-1736 87:2<359 2006 87 11144 https://doi.org/10.1007/s11144-006-0044-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11144-006-0044-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Halász János Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, H-6720 Szeged, Hungary aut NATIONALLICENCE 700 1- Mészáros Szilvia Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, H-6720 Szeged, Hungary aut NATIONALLICENCE 700 1- Hannus István aDepartment of Applied and Environmental Chemistry, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich tér 1, H-6720 Szeged, Hungary, H-6720, Szeged aut NATIONALLICENCE 773 0- Reaction Kinetics and Catalysis Letters Kluwer Academic Publishers 87/2(2006-04-01), 359-365 0133-1736 87:2<359 2006 87 11144 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer