Catalytic conversion of hemicellulosic sugars derived from biomass to levulinic acid

Jeong, Hanseob; Park, Se-Yeong; Ryu, Gahee; Choi, June-Ho; Kim, Jong-Hwa; Choi, Woo Hee; Lee, Soo Min; Choi, Joon Weon; Choi, In-Gyu

doi:10.1016/j.catcom.2018.04.016

Cited by 42 publications

(14 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result recommends that cellulose degradation reactions requires higher temperatures (130 • C) to lower the activation energy [33]. The high reaction temperature give resulted in larger amount of products in the liquid hydrolysates, due to accelerated sugar structure decomposition and increased the severity of the treatment [36]. Longer reaction times and higher temperatures improve the yield of products by increasing the rate of degradation, which shows the relationship between the concentration and the reaction time.…”

Section: Pre-treatment Of Rice Husk Wastementioning

confidence: 95%

Levulinic Acid Production from Delignified Rice Husk Waste over Manganese Catalysts: Heterogeneous Versus Homogeneous

2020

View full text Add to dashboard Cite

Delignified rice husk waste (25.66% (wt) cellulose) was converted to levulinic acid using three types of manganese catalysts, i.e., the Mn3O4/hierarchical ZSM-5 zeolite and Mn3O4 heterogenous catalysts, as well as Mn(II) ion homogeneous counterpart. The hierarchical ZSM-5 zeolite was prepared using the double template method and modified with Mn3O4 through wet-impregnation method. The structure and physicochemical properties of the catalyst materials were determined using several solid-state characterization techniques. The reaction was conducted in a 200 mL-three neck-round bottom flask at 100 °C and 130 °C for a certain reaction time in the presence of 10% (v/v) phosphoric acid and 2% (v/v) H2O2 aqueous solution, and the product was analyzed using HPLC. In general, 5-hydroxymethyl furfural (5-HMF) as the intermediate product was produced after 2 h and decreased after 4 h reaction time. To conclude, the Mn3O4/hierarchical ZSM-5 heterogenous catalyst gave the highest yield (wt %) of levulinic acid (39.75% and 27.60%, respectively) as the main product, after 8 h reaction time.

show abstract

Section: Pre-treatment Of Rice Husk Wastementioning

confidence: 95%

Levulinic Acid Production from Delignified Rice Husk Waste over Manganese Catalysts: Heterogeneous Versus Homogeneous

2020

View full text Add to dashboard Cite

show abstract

“…However, the use of this type of catalysts, that are generally solids, implies in limited mass transfer, which is worsen depending on the substrate used to LA production. In this context, the conversion of the liquid hydrolysate from treated with H2SO4 towards LA synthesis was investigated by Jeong et al [88], whom showed the efficient use of the commercial solid zeolite Y modified with NaOH as catalyst. The LA production was assigned to the mesopores and strong Lewis acid sites of modified-zeolite.…”

Section: Dodecanol [46]mentioning

confidence: 99%

Contribution to the production and use of biomass-derived solvents – a review

et al. 2020

View full text Add to dashboard Cite

In this review key processes for the synthesis of greener or more sustainable solvents derived from renewable sources (saccharides, lignocellulose and triglycerides) are discussed. It is shown that a series of platform chemicals such as glycerol, levulinic acid and furans can be converted into a variety of solvents through catalytic transformations that include hydrolysis, esterification, reduction and etherification reactions. It was also considered several aspects of each class of solvent regarding performance within the context of the reactions or extractions for which it is employed.

show abstract

“…It was proposed by the authors that xylose was mostly converted into intermediaries that, eventually, were transformed in desirable products with the formation of insignificant amounts of HUs under 130°C. The catalytic conversion of hemicellulosic sugars from biomass to produce LA was conducted by Jeong et al [42] using zeolite Y modified via NaOH treatment in different concentrations. The best LA yield was 4.6 g/100g biomass (conversion of pentoses to LA: 42.7%, based on theoretical yield) of the liquid hydrolyzed when using the zeolite treated with 0.25 M NaOH, at 190°C and 180 min.…”

Section: Multi-step Conceptual Scenarios For La Productionmentioning

confidence: 99%

Challenges to Levulinic Acid and Humins Valuation in the Sugarcane Bagasse Biorefinery Concept

et al. 2020

View full text Add to dashboard Cite

Levulinic acid (LA) is currently one of the most promising chemicals derived from biomass. However, its large-scale production is hampered by the challenges in biomass hydrolysis and the poor selectivity due to the formation of humins (HUs). This study addresses these challenges using the biorefinery concept of biomass fractionation. A three-step process (pretreatment, delignification, and acid-catalyzed conversion) was optimized to produce LA from SCB considering the yield (Y LA ), efficiency (E LA ), and concentration of LA (C LA ) as functions of temperature, reaction time, acid concentration, and solids loading. By means of a multi-response optimization, values of Y LA (20.9 ± 1.25 g/100g ISF-D ), E LA (37.5 ± 2.24 mol%), and C LA (25.1 ± 1.50 g/L) were obtained at 180°C, 75 min, 7.0% w/v H 2 SO 4 , and 12.0% w/v of solids loading. Six scenarios for production of LA were analyzed in terms of yields of LA, HUs, lignin, and other sugar-derived products considering one-, two-, or three-step processes. The economic analysis indicated that the three-step scenario delivers better economic figures given that other valuable biomass fractions (hemicellulosic sugars and lignin) are better used and contribute to the overall economic performance of the process. The results also demonstrate the burden of HUs in the economics of the process because it was shown that the largest production of LA is also linked to the largest formation of HUs, which does not necessarily yield the best economic results. These findings indicate the importance of added value by-products for the profitable production of LA in biorefineries.

show abstract

Catalytic conversion of hemicellulosic sugars derived from biomass to levulinic acid

Cited by 42 publications

References 26 publications

Levulinic Acid Production from Delignified Rice Husk Waste over Manganese Catalysts: Heterogeneous Versus Homogeneous

Levulinic Acid Production from Delignified Rice Husk Waste over Manganese Catalysts: Heterogeneous Versus Homogeneous

Contribution to the production and use of biomass-derived solvents – a review

Challenges to Levulinic Acid and Humins Valuation in the Sugarcane Bagasse Biorefinery Concept

Contact Info

Product

Resources

About