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Hydrodesulfurization NiMo Catalysts over Gamma-Alumina Prepared Mechanochemically.
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SYSNO ASEP 0491065 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hydrodesulfurization NiMo Catalysts over Gamma-Alumina Prepared Mechanochemically. Tvůrce(i) Kaluža, Luděk (UCHP-M) RID, ORCID, SAI
Jirátová, Květa (UCHP-M) RID, ORCID, SAI
Tyuliev, G. (BG)
Gulková, Daniela (UCHP-M) RID, ORCID, SAI
Balabánová, Jana (UCHP-M) RID, ORCID, SAI
Palcheva, R. (BG)
Koštejn, Martin (UCHP-M) RID, SAI, ORCID
Spojakina, A. (BG)Zdroj.dok. Reaction Kinetics Mechanism and Catalysis. - : Springer - ISSN 1878-5190
Roč. 125, č. 1 (2018), s. 319-337Poč.str. 19 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova hydrodesulfurization ; NiMo catalyst ; NiMo polyoxocomplexes Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry CEP GA17-22490S GA ČR - Grantová agentura ČR Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000443009300023 EID SCOPUS 85048820756 DOI 10.1007/s11144-018-1436-7 Anotace The novel ˠ-Al2O3 synthesis by mechanochemical activation of aluminum nitrate hydrate was applied to prepare hydrodesulfurization (HDS) NiMo catalysts. Impregnation techniques using the complex made by dissolution of nitrilotriacetic acid (NTA), ammonium heptamolybdate and nickel nitrate and the Anderson-type heteropolyoxymolybdate ((NH4)4Ni(OH)6Mo6O18) complex were compared with conventional impregnation using subsequent deposition of ammonium heptamolybdate (first) and nickel nitrate (second) with calcination in between. Properties of the support and HDS catalysts were studied by N2 physisorption, Raman spectroscopy, H2 temperature-programmed reduction (H2-TPR), O2 chemisorption and X-ray photoelectron spectroscopy (XPS). Both catalysts prepared from the complexes were at least 1.5-fold more active in the HDS reaction of 1-benzothiophene (360 °C and 1.6 MPa) than the catalyst prepared conventionally. The most promising preparation method for gaining highly active HDS catalyst on the studied ˠ-Al2O3 was the deposition of (NH4)4Ni(OH)6Mo6O18. This catalyst exhibited about 1.9 and 1.4 higher HDS activity in comparison to the conventionally prepared NiMo and reference commercial NiMo counterparts, respectively. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2019
Počet záznamů: 1