Effect of Acid Pretreatment on the Primary Products of Biomass Fast Pyrolysis

Usino, David O.; Şar, Taner; Ylitervo, Päivi; Richards, Tobias

doi:10.2139/ssrn.4132929

Cited by 1 publication

(1 citation statement)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another study published the effect of acid pretreatment on the primary products of biomass pyrolysis and found that formic acid and sulfuric acid pretreatment resulted in different primary products of biomass pyrolysis. Formic acid pretreatment resulted in higher yields of levoglucosan, while sulfuric acid pretreatment resulted in higher yields of furfural and 5-hydroxymethylfurfural [ 63 ].…”

Section: Resultsmentioning

confidence: 99%

Synergistic sequential oxidative extraction for nanofibrillated cellulose isolated from oil palm empty fruit bunch

Abd Manaf,

Harun,

Md. Jahim

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

This research presents a comprehensive study of sequential oxidative extraction (SOE) consisting of alkaline and acidic oxidation processes to extract nanocellulose from plant biomass. This proposed process is advantageous as its operation requires a minimum process with mild solvents, and yet successfully isolated high-quality nanofibrillated cellulose (NFC) from raw OPEFB. The SOE involved ammonium hydroxide (NH4OH, 2.6 M) and formic acid (HCOOH, 5.3 M) catalyzed by hydrogen peroxide (H2O2, 3.2 M). This approach was used to efficiently solubilize the lignin and hemicellulose from Oil Palm Empty Fruit Bunch (OPEFB) at the temperature of 100°C and 1 h extraction time, which managed to retain fibrous NFC. The extracted solid and liquor at each stage were studied extensively through physiochemical analysis. The finding indicated that approximately 75.3%dwb of hemicellulose, 68.9%dwb of lignin, and 42.0%dwb of extractive were solubilized in the first SOE cycle, while the second SOE cycle resulted in 92.3%dwb, 99.6%dwb and 99.8%dwb of solubilized hemicellulose, lignin, and extractive/ash, respectively. High-quality NFC (75.52%dwb) was obtained for the final extracted solid with 76.4% crystallinity, which is near the crystallinity of standard commercial NFC. The proposed process possesses an effective synergy in producing NFC from raw OPEFB with less cellulose degradation, and most of the degraded hemicellulose and lignin are solubilized in the liquor.

show abstract

Section: Resultsmentioning

confidence: 99%