Preparation of two different crystal structures of cerous phosphate as solid acid catalysts: their different catalytic performance in the aldol condensation reaction between furfural and acetone

Abstract

Liquid fuel intermediates can be produced via aldol condensation reactions through furan aldehydes and ketones driven from biomass.

Pd-Decorated CePO4 Catalyst for the One-Pot, Two-Step Cascade Reaction to Transform Biomass-Derived Furanic Aldehydes into Fuel Intermediates

“…TPD analysis suggests that CePO 4 has basicity and acidity to conduct the condensation reaction between furfural and acetone. Further, Li et al recently compared the catalytic activity of two different phases of CePO 4 in aldol condensation between furfural and acetone . This study aims to design a catalytic procedure for one-pot, two-step conversion of biomass-derived carbonyls into higher-carbon-chain-containing fuel intermediates through condensation, followed by hydrogenation.…”

“…The activity of CePO 4 prepared in this study and the reaction conditions employed here provided 99.5% FAL conversion and >99% FAC selectivity. In contrast, the activity of CePO 4 reported in the literature exhibited 89% FAL conversion and 47% FAC selectivity . Since the best activity is obtained over Pd(3%)/CePO 4 in the second step (hydrogenation reaction), therefore the reaction parameters were optimized using Pd(3%)/CePO 4 .…”

“…Further, Li et al recently compared the catalytic activity of two different phases of CePO 4 in aldol condensation between furfural and acetone. 45 This study aims to design a catalytic procedure for one-pot, two-step conversion of biomassderived carbonyls into higher-carbon-chain-containing fuel intermediates through condensation, followed by hydrogenation. Thus, a catalyst with suitable reduction sites is required for the hydrogenation reaction.…”

Sustainable biomass hydrodeoxygenation in biphasic systems

“…128–130 After HDO, these furans can be converted into fuels and high-value-added chemicals such as furfuryl alcohol, tetrahydrofurfuryl alcohol, 2-methylfuran (2-MF), 2-methyltetrahydrofuran (2-MTHF) and cyclopentanone. 100,131,132 This will contribute to the beneficial utilization of biomass and alleviate the environmental problems caused by the excessive use of fossil fuels. Fig.…”

Highly selective self-condensation of cyclohexanone: the distinct catalytic behaviour of HRF5015

“…Cyclohexanone self-condensation is a reversible aldol condensation reaction that can be catalysed by acidic catalysts or alkaline catalysts [ 6 , 7 ]. Sulfuric acid is a widely used catalyst for this reaction in industry, but equipment corrosion and environmental pollution are still urgent problems to be solved.…”