Details

Autor(en) / Beteiligte

• Kang, Shimin
• Fu, Jinxia
• Zhang, Gang

Titel

From lignocellulosic biomass to levulinic acid: A review on acid-catalyzed hydrolysis

Ist Teil von

• Renewable & sustainable energy reviews, 2018-10, Vol.94, p.340-362

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2018

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• Catalytic conversion of renewable biomass to “green” chemicals and fuel additives has been extensively investigated in the past few decades. Interests on two top platform intermediates for biofuel production, i.e. levulinic acid (LA) and 5-hydroxymethylfurfural (HMF), have increased significantly. These two chemicals are generally produced from biomass through acid hydrolysis. This review summarizes the discoveries of the most recent studies on acid-catalyzed hydrolysis, including (i) biomass pretreatment, (ii) glucose production from cellulose hydrolysis, (iii) fructose formation from glucose isomerization, (iv) HMF formation from glucose/fructose dehydration and (v) LA production from HMF rehydration. Humins, the main byproducts, are also discussed in the aspect of their influence on the hydrolysis process, structure, formation mechanism, and applications. •Reaction mechanism of lignocellulosic biomass to levulinic acid is reviewed.•Challenges for commercial production of 5-hydroxymethylfurfural are studied.•The feasibility of commercial production of levulinic acid is discussed.•Value added conversion pathways of waste hummis are proposed.•Future research direction on biomass acid hydrolysis is recommended.