THF co-solvent enhances hydrocarbon fuel precursor yields from lignocellulosic biomass

Cai, Charles M.; Zhang, Taiying; Kumar, Rajeev; Wyman, Charles E.

doi:10.1039/c3gc41214h

Cited by 241 publications

(214 citation statements)

References 27 publications

Supporting

Mentioning

206

Contrasting

Order By: Relevance

“…Cai et al obtained the highest published concentration of levulinic acid (4.8% with 75% yield) when treating maple wood that had been pretreated hydrothermally. 121 The importance of this prehydrolysis step was demonstrated again by Galletti et al…”

Section: 135mentioning

confidence: 89%

“…4 Other solvents, such as THF, can be used with similar results. Cai et al 121 reported the co-production of furfural and levulinic acid at 86% and 40% yield from maple wood, respectively, using THF-water as a solvent (3 : 1 ratio) at 443 K for 1 h using 1 wt% H 2 SO 4 . In addition, they reported the production of HMF at 21% yield (Tables 2-4).…”

Section: Simultaneous Production Of Furfural and Levulinic Acidmentioning

confidence: 99%

“…A similar system has been described by Cai et al 121 who used THF, a polar aprotic solvent that is thought to lead to similar kinetic effects to those observed for GVL. 80 They reported furfural yields of up to 87% from maple wood with sulfuric acid as a catalyst after 60 min at 443 K in a THF-water mixture.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Targeted chemical upgrading of lignocellulosic biomass to platform molecules

2014

View full text Add to dashboard Cite

This review presents an overview of the initial targeted chemical processing stages for conversion of lignocellulosic biomass to platform molecules that serve as intermediates for the production of carbonbased fuels and chemicals. We identify four classes of platform molecules that can be obtained in an initial chemical processing step: (i) sugars, (ii) dehydration products, (iii) polyols and (iv) lignin monomers. Special emphasis is placed on reporting and comparing parameters that affect process economics and/or sustainability, including product yields, amount of catalyst used, processing conditions, and product concentrations. We discuss the economic trade-offs associated with choices related to these parameters, depending on the product that is targeted. We also address the effects of real biomass on the ability to recover, recycle, and potentially regenerate catalysts and solvents used in the biomass conversion processes.

show abstract

Section: 135mentioning

confidence: 89%

Section: Simultaneous Production Of Furfural and Levulinic Acidmentioning

confidence: 99%

See 1 more Smart Citation

Targeted chemical upgrading of lignocellulosic biomass to platform molecules

2014

View full text Add to dashboard Cite

show abstract

“…Thus, after the two-step hydrolysis the hydrolysate liquid contained a high yield of both furfural and levulinic acid. Compared with published relevant studies applying one-pot reactions (Alonso et al 2013b;Cai et al 2013), which resulted in either a high yield of furfural or a high yield of levulinic acid, a more balanced high yield of furfural and levulinic acid was obtained by this two-step method. In addition, according to previous reports, the hydrolysis efficiency of sulfuric acid and hydrochloric acid used as a catalyst may vary with the raw material (Herrera et al 2004;Meinita et al 2012).…”

Section: Introductionmentioning

confidence: 99%

A Two-Step Conversion of Corn Stover into Furfural and Levulinic Acid in a Water/Gamma-Valerolactone System

Li¹,

Li²,

Liu³

et al. 2016

BioResources

View full text Add to dashboard Cite

A two-step hydrolysis method was evaluated as a potential means of obtaining high yields of furfural and levulinic acid from corn stover using sulfuric acid as catalyst in a water/gamma-valerolactone (GVL) system. The corn stover underwent a high-temperature hydrolysis process to produce levulinic acid, followed by a low-temperature hydrolysis process to produce furfural. A series of experiments were conducted to explore the relationship between the different reaction parameters and the final yields of furfural and levulinic acid. Scanning electron microscopy (SEM) pictures together with X-ray diffraction (XRD) analysis were used to further elaborate on the hydrolysis results. Molar yields of about 70.65% furfural and 57.7% levulinic acid were obtained by applying this method with a low temperature of 140 °C and a high temperature of 190 °C, together with 0.2 M of sulfuric acid used as the catalyst. These results indicated that this was an effective way to obtain satisfactory yields of furfural and levulinic acid from corn stover.

show abstract

“…Currently, organic solvents with low boiling points, that are easily recycled, and that are relatively non-toxic to environment, have received the most attention. THF is a typical low boiling point co-solvent applied in the generation of HMF, furfural, and levulinic acid from biomass conversion (Cai et al 2013(Cai et al , 2014. As a widely used industrial organic solvent, acetone also has a low boiling point and is easily recovered.…”

Section: Introductionmentioning

confidence: 99%

Influence of Acetone Co-Solvent on Furfural Production and Cellulose Retention from Lignocellulosic Biomass

et al. 2017

View full text Add to dashboard Cite

This research aimed to obtain furfural from sugarcane bagasse with most cellulose residue preserved by using the system of diluted phosphoric acid and co-solvent acetone. Based on concentrated phosphoric acid and acetone pretreatment, 78.2% of the hemicelluloses in the bagasse were depolymerized into water soluble xylo-oligosaccharides, covering the cellulose residue. Then, in the pure acetone medium, no furfural was produced when pretreated bagasse was catalyzed by phosphoric acid at low reaction temperature (80 °C). The degradation of pretreated bagasse was strongly accelerated by increasing reaction temperature (120 °C), while no furfural was obtained due to its condensation with acetone. Adding water (12 mL) effectively slowed this process, with 10.6% furfural yield and 54.4% furfural selectivity, but acetone showed an inhibiting influence on furfural production compared to pure water system, under atmospheric conditions. Surprisingly, furfural production in the acetonewater medium was improved significantly when the reaction was pressurized, using xylose or bagasse as the feedstock. In pressurized conditions, higher furfural yield, shorter reaction time, and lower cellulose degradation were observed in the acetone-water medium versus the totally aqueous medium. This provided the potential of producing furfural and hydrolysable cellulose residue in the acetone co-solvent media.

show abstract

THF co-solvent enhances hydrocarbon fuel precursor yields from lignocellulosic biomass

Cited by 241 publications

References 27 publications

Targeted chemical upgrading of lignocellulosic biomass to platform molecules

Targeted chemical upgrading of lignocellulosic biomass to platform molecules

A Two-Step Conversion of Corn Stover into Furfural and Levulinic Acid in a Water/Gamma-Valerolactone System

Influence of Acetone Co-Solvent on Furfural Production and Cellulose Retention from Lignocellulosic Biomass

Contact Info

Product

Resources

About