Catalytic deoxygenation of benzaldehyde over gallium-modified ZSM-5 zeolite

In-situ catalytic upgrading of biomass pyrolysis vapor: Using a cascade system of various catalysts in a multi-zone fixed bed reactor

“…Among various types of catalysts, model compound investigations showed that zeolite (meso-HZSM-5 and Ga/meso-HZSM-5) and oxide supported metal (Cu/SiO 2 ) catalysts were very efficient in biomass pyrolysis vapor upgrading reactions comprising; aldol condensation, aromatization, alkylation, deoxygenation and hydrogenation [4,10,13,20,39]. The yield of the bio-oil, solid products and gas (wt.%) for the PKS in-situ catalytic pyrolysis process using individual catalysts or different configurations of catalysts (meso-HZSM-5, Ga/meso-HZSM-5 and Cu/SiO 2 ) in a cascade system are shown in Table 3.…”

“…Ga-containing zeolites are highly active in reactions involving hydrogen and carbonyl compounds, comprising hydrogenation, decarbonylation, and hydrogenolysis. These types of catalysts have indicated to exhibit high activity toward reactions involving activation of light alkanes, particularly aromatization [39].…”

Efficient Hydrodeoxygenation of Aliphatic Ketones over an Alkali‐Treated Ni/HZSM‐5 Catalyst

“…Recently, hydrodeoxygenation was reported as an alternative method in which water is the only non‐target product that is theoretically formed. However, most of the reports only focus on the reduction of aromatic ketones;9–11 the reduction of aliphatic ketones has been rarely studied. Platinum‐,12 palladium‐,13, 14 and nickel‐based15 catalysts have been investigated for the hydrodeoxygenation of aliphatic ketones.…”

A synthetic strategy for carbon nanospheres impregnated with highly monodispersed metal nanoparticles

“…Benzaldehyde is a renewable chemical compound of bio-oil obtained by partial pyrolysis of biomass. 32,33 The catalytic hydrogenation of benzaldehyde is a model reaction for hydrogenation of aromatic aldehydes leading to alcohol (benzyl alcohol) or hydrocarbons Figure S22a). 34 However, the selectivity toward toluene is of primary importance, as this aromatic hydrocarbon is widely used as (i) an industrial feedstock (precursor to other chemicals), (ii) a solvent (for paints, printing ink, adhesives and disinfectants) and (iii) an additive in gasoline fuels (octane booster) used in internal combustion engines.…”

“…34 However, the selectivity toward toluene is of primary importance, as this aromatic hydrocarbon is widely used as (i) an industrial feedstock (precursor to other chemicals), (ii) a solvent (for paints, printing ink, adhesives and disinfectants) and (iii) an additive in gasoline fuels (octane booster) used in internal combustion engines. [32][33][34][35] Our carbon spheres with highly dispersed Pt and Au catalysts were highly active and chemoselective for hydrogenation toward the C = O group at the room temperature (Supplementary Table S2). In the case of Au catalysts, toluene was the only product at 100% conversion of benzaldehyde ( Figure 4).…”