Heterogeneous Catalytic Hydrogenation of Biobased Levulinic and Succinic Acids in Aqueous Solutions

Abstract

Supported noble-metal catalysts (Ru, Pd or Pt) and the corresponding Re-promoted catalysts exhibit a high activity for the hydrogenation of biobased carboxylic acids. Levulinic acid and succinic acid are converted into the lactones or the diols depending on the nature of the catalyst and the reaction conditions. The highest selectivity to 1,4-pentanediol of 82 % is achieved at 140 °C in the presence of the 1.9 % Ru-3.6 % Re/C catalyst.

Hydrogenation of succinic acid to 1,4-butanediol over Re–Ru bimetallic catalysts supported on mesoporous carbon

“…Among the catalysts tested, 0.3Re-0.3Ru/MC showed the highest TOF (61.2 h −1 ) and TOF BDO (8.51 h −1 ). In particular, the catalytic performance of 0.3Re-0.3Ru/MC was comparable to that of reported Re-based bimetallic catalysts [14][15][16][17]. This implies that 0.3Re-0.3Ru/MC served as a promising catalyst for the selective formation of BDO from succinic acid.…”

“…Among these catalysts, rhenium has been considered as the most efficient monometallic catalyst for the selective formation of BDO. However, several studies have shown that rhenium alone was not sufficient to obtain high yield for BDO [5,[14][15][16][17].…”

“…In an attempt to improve BDO production by hydrogenation of succinic acid, Re-based bimetallic catalysts, including Re-Pt/C [14], Re-Pd/C [14,15], Re-Pd/TiO 2 [16], and Re-Ru/C [15,17], have been investigated. Nonetheless, the researches have rarely elucidated the effect of interaction between rhenium and other metal on the selective formation of BDO from succinic acid.…”

Role of water in metal catalyst performance for ketone hydrogenation: a joint experimental and theoretical study on levulinic acid conversion into gamma-valerolactone

“…This alternative route is not accessible under our mild conditions. Under these conditions, it is striking that Ru is usually more active in the conversion of LA to GVL than Pd and Pt in water, [9][10][11][12] while Ru is known to be poorly active compared to Pd and Pt in the hydrogenation of ketones under gas phase conditions. 13 Actually, the hydrogenation capability of Ru is strongly modulated by the reaction environment.…”

Synthesis of 2‐Butanol by Selective Hydrogenolysis of 1,4‐Anhydroerythritol over Molybdenum Oxide‐Modified Rhodium‐Supported Silica

“…[9] Therefore, the development of efficient processes for 2-butanol production from biomass resources will be desirable in the substitution for petroleum, and recently two methods have been reported, the biological transformation of glucose to 2-butanol [8] and the hydrogenation and decarboxylation of levulinic acid to 2-butanol. [10][11][12] Chen and co-workers reported that Klebsiella pneumoniae HR526 is effective for the transformation of glucose to 2-butanol, [8] which provides a low yield of 2-butanol (~4 %). Cabiac and co-workers [10] reported that Ru/TiO 2 provided a high yield of 2-butanol (61 %) by the hydrogenation and decarboxylation of levulinic acid, which can be produced by the dehydration of C 6 sugars to 5-hydroxymethylfurfural and subsequent hydrolysis.…”