Secondary decomposition of levoglucosan in pyrolytic production from cellulosic biomass

Kawamoto, Hiroyuki; Morisaki, Hiroyuki; Saka, Shiro

doi:10.1016/j.jaap.2008.08.009

Cited by 77 publications

(49 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ronsse et al 44 investigated the catalytic behavior of char in the decomposition of LVG using a micropyrolyzer system and revealed that metals, especially the alkali metals, rather than the fixed carbon in the char, catalyzed the decomposition of LVG, and the catalytic activity of char can be substantially reduced by acid washing. Kawamoto et al 45 reported that inorganic salts greatly reduced the yield of LVG and suggested pure cellulose should be used to avoid secondary reactions of LVG. Kawamoto et al 35 hypothesized that LVG and polysaccharides existed as an equilibrium mixture in cellulose pyrolysis and proposed a global pyrolysis mechanism in which LVG formed from the decomposition of cellulose underwent two simultaneous reactions: (1) transformation into volatile LMW products and (2) ring-opening polymerization into polysaccharides which eventually converted into char.…”

Section: As Shown In Supporting Informationmentioning

confidence: 99%

Fast pyrolysis of glucose‐based carbohydrates with added NaCl part 1: Experiments and development of a mechanistic model

et al. 2015

View full text Add to dashboard Cite

Sodium ions, one of the natural inorganic constituents in lignocellulosic biomass, significantly alter pyrolysis behavior and resulting chemical speciation. Here, experiments were conducted using a micropyrolyzer to investigate the catalytic effects of NaCl on fast pyrolysis of glucose-based carbohydrates (glucose, cellobiose, maltohexaose, and cellulose), and on a major product of cellulose pyrolysis, levoglucosan (LVG). A mechanistic model that addressed the significant catalytic effects of NaCl on the product distribution was developed. The model incorporated interactions of Na 1 with cellulosic chains and low molecular weight species, reactions mediated by Na 1 including dehydration, cyclic/Grob fragmentation, ring-opening/closing, isomerization, and char formation, and a degradation network of LVG in the presence of Na

show abstract

Section: As Shown In Supporting Informationmentioning

confidence: 99%

Fast pyrolysis of glucose‐based carbohydrates with added NaCl part 1: Experiments and development of a mechanistic model

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The C5-6 ring-containing compounds from cellulose pyrolysis are condensable and mainly composed of a variety of anhydrosugar and furan derivatives, among which levoglucosan (1, 6-anhydro--D-glucopyranose) are the outstanding one [12,18,21,23,31,36,41,[78][79][80][81][82]. Shafizadeh et al [33] confirmed that levoglucosan can be obtained in yields from 20% to 60% by weight in their vacuum pyrolysis study of various cellulose samples, while other anhydrosugars (such as 2,3-anhydro-d-mannose, 1,4:3,6-dianhydro--D-glucopyranose, 1,6-anhydro--D-glucofuranose and 3,4-altrosan) are slightly produced (less than 1% by weight).…”

Section: Pyran-and Furan-derivatives (C5-6 Ring-contained Compounds)mentioning

confidence: 99%

The Overview of Thermal Decomposition of Cellulose in Lignocellulosic Biomass

Xiao¹,

Gu²,

Zhang³

2013

Cellulose - Biomass Conversion

View full text Add to dashboard Cite

“…A variety of factors affect the LG yield, and of these, the pyrolysis temperature and the inorganic impurities are the most important (Kawamoto et al 2009). A small amount of inorganic impurities has a noticeable impact on the yield of LG (Shimada et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Fractionation of Pyroligneous Acid: The First Step for the Recovery of Levoglucosan

Fang¹,

Li²,

Yi³

et al. 2016

BioResources

View full text Add to dashboard Cite

Levoglucosan (LG) obtained from lignocellulosic biomass exhibits great potential as a specific tracer for biomass burning aerosols and as a raw material for synthesizing stereoregular polysaccharides. One potentially viable source of LG is pyroligneous acid (PA). This study investigated the effects of heating temperature on the extraction capability and the chemical composition of distillate and residual fractions. The results demonstrated that vacuum distillation extracted the acids, alcohols, ketones, aldehydes, and other organic matter. When the heating temperature was above 80 °C, the moisture content of the residual fraction was unchanged. The chemical composition of residual fraction was analyzed by gas chromatography-mass spectrometry (GC-MS). The analysis showed that the relative content of the LG, as obtained from the 90 °C distillation temperature, was 75.6%. Thus, it can be used as raw material for subsequent purification.

show abstract

Secondary decomposition of levoglucosan in pyrolytic production from cellulosic biomass

Cited by 77 publications

References 28 publications

Fast pyrolysis of glucose‐based carbohydrates with added NaCl part 1: Experiments and development of a mechanistic model

Fast pyrolysis of glucose‐based carbohydrates with added NaCl part 1: Experiments and development of a mechanistic model

The Overview of Thermal Decomposition of Cellulose in Lignocellulosic Biomass

Fractionation of Pyroligneous Acid: The First Step for the Recovery of Levoglucosan

Contact Info

Product

Resources

About