Webthoria: [noun] a powdery white oxide of thorium ThO2 used especially as a catalyst and in crucibles and refractories and optical glass. WebAbstract. The interaction between carbon dioxide and hydrogen was studied in presence of nickel and nickel thoria catalysts at atmospheric pressure and at elevated pressures of th

Selective synthesis of α-olefins by dehydration of fatty alcohols …

WebJan 1, 2024 · Bifunctional metal-zeolite catalysts cobalt-ZSM-5 and cobalt-thoria-ZSM-5 have been examined for the conversion of synthesis gas (H2/CO = 1) at 280 °C, 21 bar and … WebSep 22, 2016 · Single-atom catalysts are of great interest and importance for designing new high-performance low-cost catalysts. We investigated CO oxidation catalyzed by single … choose at application startup

MOLECULAR SIEVE SSZ-122, ITS SYNTHESIS AND USE

WebOct 1, 1984 · Aldol condensation of benzaldehyde with a variety of carbonyl compounds yielded phenyl alkyl ketones in addition to the expected condensation products over thorium oxide catalyst at 400 °C. The β-hydroxyketone formed underwent both dehydration to yield α,β-unsaturated carbonyl compound and dehydrogenation to yield 1,3-diketone. WebDec 1, 1980 · The mechanistic aspects of the reactions are discussed. INTRODUCTION Thoria is known to catalyze the dehydra- tion of alcohols to form olefins and phenols to ethers (/, 2). In recent years, it has been shown to be a selective catalyst for the conversion of 2-alkanols to 1-alkenes (3, 4). Thoria does not catalyze the forma- tion of dialkyi ... WebThe nature of the support had no detectable influence on the catalytic activity during a given experiment, but was found to affect the long-term stability of the catalyst. Investigations have been made of the kinetics of the oxidation of methane over a palladium/thoria catalyst both in the absence and in the presence of the reaction products. choose atau chose