Synergistic effect for bimetallic Ru-Tc catalysts of cyclohexane dehydrogenation

Pirogova, G. N.; Rimar, N. N.; Kalinina, G. E.

doi:10.1007/bf01457763

Cited by 1 publication

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“…The formation of aromatics with the catalyst at high temperature could have been caused by the dehydrogenation of the various cyclic compounds that were formed from the LA dimers (Table S1). In the literature, high temperatures have been found to promote cyclohexane dehydrogenation on Ru catalysts [36,37]. Thermally, especially ketones were formed.…”

Section: Light and Volatile Productsmentioning

confidence: 99%

Hydrodeoxygenation of Levulinic Acid Dimers on a Zirconia-Supported Ruthenium Catalyst

et al. 2020

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The hydrodeoxygenation (HDO) of levulinic acid (LA) aldol condensation product dimers was studied between 250 and 300 °C and 50 bar H2 in a batch reactor with Ru catalyst supported on mesoporous zirconia. During the reaction, the unsaturated dimers, which contained ketone groups and double bonds, were hydrogenated to saturated dimers. A greater degree of deoxygenation was achieved at higher temperatures, and oxygen was removed as water and CO2. Oxygen removal was evidenced by elemental analysis and infrared spectroscopy, in which the C=O peak decreased with increasing temperature. A drawback of high reaction temperature (300 °C) was a minor degree of oligomerization. The formation of aromatics was also observed at the higher temperatures. Aside from the saturated dimers, volatile products were obtained at all temperatures, including ketones, acids, and esters. This study demonstrates for the first time the potential of LA dimers as a sustainable route from lignocellulosic biomass to biofuels and biocomponents.

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Section: Light and Volatile Productsmentioning

confidence: 99%