Počet záznamů: 1  

Microstructural Properties and HDS Activity of CoMo Catalysts Supported on Activated Carbon, Al2O3, ZrO2 and TiO2

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    SYSNO ASEP0444339
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevMicrostructural Properties and HDS Activity of CoMo Catalysts Supported on Activated Carbon, Al2O3, ZrO2 and TiO2
    Tvůrce(i) Soukup, Karel (UCHP-M) RID, SAI, ORCID
    Procházka, Martin (UCHP-M)
    Kaluža, Luděk (UCHP-M) RID, ORCID, SAI
    Zdroj.dok.Chemical Engineering Transactions - ISSN 1974-9791
    Roč. 43, č. 2015 (2015), s. 841-846
    Poč.str.6 s.
    Forma vydáníTištěná - P
    AkceInternational Conference on Chemical and Process Engineering - ICheaP12 /12./
    Datum konání19.05.2015-22.05.2015
    Místo konáníMilano
    ZeměIT - Itálie
    Typ akceWRD
    Jazyk dok.eng - angličtina
    Země vyd.IT - Itálie
    Klíč. slovaCoMo catalysts ; surface area ; activated carbon
    Vědní obor RIVCF - Fyzikální chemie a teoretická chemie
    CEPGAP106/11/0902 GA ČR - Grantová agentura ČR
    Institucionální podporaUCHP-M - RVO:67985858
    UT WOS000365994200141
    EID SCOPUS84946044674
    DOI10.3303/CET1543141
    AnotaceUnconventional supports of CoMo catalysts, such as activated carbon, ZrO2 and TiO2 and conventional Al2O3 support in the form of cylindrical extrudates were studied using inverse gas chromatography with single pelletstring column (SPSC) configuration, high pressure mercury porosimetry and nitrogen adsorption methods to assess both the transport and textural characteristics. The supports were saturated from an aqueous slurry of MoO3. MoO3 supported catalysts were promoted from the aqueous slurry of CoCO3.Co(OH)2. The transport and textural parameters of all CoMo catalysts prepared in their both oxidic and sulfide form were compared with that of the parent supports. It was concluded that the support effect, represented in the present work by surface area, CoMo loading and mainly the mean transport-pore radius, govern resultant activity of CoMo catalysts. The increasing mean transport-pore radii either of the support or of the sulfide catalyst correlated well qualitatively with the increasing activity in HDS of 1-benzothiophene in the order: ZrO2 < TiO2 < Al2O3 < C. The unconventional ZrO2- and TiO2-supported systems exhibited low microstructural changes in terms of textural and transport characteristics after deposition of CoMo and low HDS activities. In contrast, Al2O3- and C-based systems revealed significant changes in microstructure after deposition of the CoMo phases onto the supports and high HDS activities. The activated carbon supported CoMo catalyst exhibited the highest HDS activity and the mean transport-pore radius despite the highest volume of micropores.
    PracovištěÚstav chemických procesů
    KontaktEva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
    Rok sběru2016
Počet záznamů: 1  

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