Continuous production of 1,4-pentanediol from ethyl levulinate and industrialized furfuryl alcohol over Cu-based catalysts

Abstract

Highly efficient synthesis of 1,4-pentanediol (1,4-PDO) from industrialized biomass-based products is still a challenge due to the inherent chemical stability of intermediate product γ-valerolactone. The aim of the present research...

Ethanol-induced transformation of furfural into 1,4-pentanediol over a Cu/SiO2 catalyst with enhanced metal–acid sites by copper phyllosilicate

“…The carbon balance of the reaction was only 66.4%, as polymerization of furfural occurred heavily forming large amount of humins. 43,44 With a decrease of the water/ethanol ratio (from 12 : 0 to 0 : 12), 1,4-PeD yield increased gradually until the maximum yield (88.3%) was achieved at 3 : 9 (Table 3, entry 5), and then decreased quickly with large production of 2-MTHF. The carbon balance also increased significantly with the decline of the water/ethanol ratio (Table 3, entries 1–5), demonstrating that the usage of ethanol suppressed the polymerization of furfural.…”

Catalytic production of 1,4-pentanediol from lignocellulosic biomass

“…At high pressure of H 2 , the CvO/CvC bond of FAL is preferentially hydrogenated to generate 2-MF and 2-MTHF and the C-O bond undergoes hydrogenolysis to produce 1,2-PDO and 1,5-PDO over metal or metal-acid bifunctional catalysts, which greatly retards the formation of 1,4-PDO. 82,84 Zhu et al 85 loaded HZSM-5 and CuMgAl catalysts in the upper and lower layers of a fixed-bed reactor, respectively. HZSM-5 promoted FAL alcoholysis with ethanol to ethyl levulinate, which can be exclusively produced without the occurrence of hydrogenation by-reaction of FAL (Scheme 5).…”

Exploring the potential of growing energy crops and then producing liquid fuels in marginal land: A China scenario

“…Developing biomass liquid fuels (hereinafter referred to as liquid fuels) is of practical significance to ease the pressure on energy and resources, reduce ecological and environmental pollution, and develop the social economy [25]. The process of converting biomass materials into gasoline, diesel, and other alternative fuels is shown in Fig.…”