Rapid and highly selective conversion of biomass into value-added products in hydrothermal conditions: chemistry of acid/base-catalysed and oxidation reactions

Jin, Fangming; Enomoto, Heiji

doi:10.1039/c004268d

Cited by 335 publications

(245 citation statements)

References 101 publications

(150 reference statements)

Supporting

Mentioning

238

Contrasting

Unclassified

Order By: Relevance

“…The HTL assisted by NH 3 ·H 2 O showed the lowest biochar and gas production in this study. Similarly, the application of acids may produce some important intermediates like 5-(hydroxymethyl)furfural, which positively affect the HTL process and increase feedstock conversion into bio-crude oil [38]. Although crude glycerol (66.95% glycerol) was reported to enhance bio-oil production, the use of a low dosage of glycerol (1%) during HTL of dairy manure did not result in a significant difference.…”

Section: Product Yields Of Htl Of Dairy Manure In Different Solutionsmentioning

confidence: 88%

Hydrothermal Liquefaction Enhanced by Various Chemicals as a Means of Sustainable Dairy Manure Treatment

et al. 2018

View full text Add to dashboard Cite

Abstract:Because of the increase in concentrated animal feeding operations, there is a growing interest in sustainable manure management. In this study, hydrothermal liquefaction (HTL) of dairy manure enhanced by various chemicals (NH 3 ·H 2 O, H 3 PO 4 , and glycerol) was proposed as a sustainable alternative for the dairy manure management. The applications of NH 3 ·H 2 O and H 3 PO 4 during HTL could significantly enhance the production of liquid chemicals. The addition of NH 3 ·H 2 O or glycerol increased the amounts of non-polar toluene, xylene, and other benzene-contained compounds, while the use of H 3 PO 4 produced high amounts of acids, pyridine, 3-methyl-pyridine, 2,6-dimethyl-pyrazine, 2-cyclopenten-1-ones, and phenols. The biochars produced via HTL showed a significant increase in the surface area/pore volume and relatively higher N, P, C, and other minerals, and may serve as a good soil amendment and nutrient source. The preliminary energy analyses showed that the energy consumption of this process might be reduced to 50% of the original energy content of the feedstock, and the energy payback period was about 3.5 years. Combining all advantages, HTL of dairy manure might increase the sustainability of the farming operation via producing energy products, fine chemicals, and biochars.

show abstract

Section: Product Yields Of Htl Of Dairy Manure In Different Solutionsmentioning

confidence: 88%

Hydrothermal Liquefaction Enhanced by Various Chemicals as a Means of Sustainable Dairy Manure Treatment

et al. 2018

View full text Add to dashboard Cite

show abstract

“…It is generally accepted that the calculations are based on biomass pentose content. However, it has been reported that in some catalytic systems, the hexose sugars can be converted to pentose sugars through a retro-aldol reaction 102 and be dehydrated to furfural. While this reaction is normally negligible, recently, yields up to 30% furfural from glucose have been reported.…”

Section: Furans and Their Derivativesmentioning

confidence: 99%

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

“…Gürbüz et al (2013) and Zhang et al (2014a) also found this phenomenon when using H-mordenite and FeCl3·6H2O as catalysts for furfural production in GVL, respectively. According to previous reports, this may occur because glucose can transform to a pentose by tautomerization and a subsequent retro-aldol reaction in the presence of an acid catalyst in GVL (Aida et al 2007;Jin and Enomoto 2011 , excellent reusability, and ease of preparation.…”

mentioning

confidence: 99%

Catalytic Conversion of Biomass-derived Carbohydrates into 5-Hydroxymethylfurfural using a Strong Solid Acid Catalyst in Aqueous γ-Valerolactone

Li¹,

Xu²,

Zhang³

et al. 2016

BioResources

View full text Add to dashboard Cite

Selective conversion of biomass-derived carbohydrates into 5-hydroxymethylfurfural (HMF) is of great significance for biomass conversion. In this study, a novel solid Brønsted acid was prepared simply by the copolymerization of paraformaldehyde and p-toluenesulfonic acid and then used to catalyze the conversion of various carbohydrates into HMF in γ-valerolactone-water (GVL/H2O) reaction medium for the first time. The catalyst exhibited strong acidity, good water resistance, and high thermal stability. The present work focuses on the effects of various reaction parameters, including reaction temperature, time, water concentration, solvent, fructose level, and catalyst loading, on fructose dehydration. The catalyst exhibited excellent catalytic performance for HMF production from fructose in GVL and furnished a high HMF yield of 78.1% at 130 °C in 30 min. The recycling experiments suggested that the solid acid catalyst could be recycled at least seven times without a noticeable decrease in the catalytic activity. In addition, an attempt to study the one-step conversion of sucrose, glucose, and cellulose into HMF and furfural was performed using the same catalytic system.

show abstract

Rapid and highly selective conversion of biomass into value-added products in hydrothermal conditions: chemistry of acid/base-catalysed and oxidation reactions

Cited by 335 publications

References 101 publications

Hydrothermal Liquefaction Enhanced by Various Chemicals as a Means of Sustainable Dairy Manure Treatment

Hydrothermal Liquefaction Enhanced by Various Chemicals as a Means of Sustainable Dairy Manure Treatment

Targeted chemical upgrading of lignocellulosic biomass to platform molecules

Catalytic Conversion of Biomass-derived Carbohydrates into 5-Hydroxymethylfurfural using a Strong Solid Acid Catalyst in Aqueous γ-Valerolactone

Contact Info

Product

Resources

About