Liquefaction of sawdust in 1-octanol using acidic ionic liquids as catalyst

Efficient liquefaction of woody biomass in polyhydric alcohol with acidic ionic liquid as a green catalyst

“…In our previous works [20,21], the four kinds of functionalized AILs were synthesized and chosen as green catalysts of sawdust liquefaction in monohydric alcohol (1-octanol). Their catalytic performance and the effect of the reaction's parameters on the liquefaction process were both discussed.…”

Rapid and solvent-saving liquefaction of woody biomass using microwave–ultrasonic assisted technology

“…Combining the above analyses and our previous work (Lu et al, 2013a, we speculated that if microwave and ultrasonic wave were introduced simultaneously into biomass liquefaction to intensify heat and mass transfer, the result would be a solvent-saving and rapid liquefaction of abundant and renewable woody biomass that would enhance its commercial potential. In recent years, microwave-ultrasonic assisted technology (MUAT) has been used in some treatment processes for biomass with excellent results in process intensification (Lu et al, 2013b).…”

Ionic Liquids in Biomass Processing

“…In another experiment Chinese fir sawdust was liquefied in 1‐octanol using a series of AILs containing HSO 4 − and imidazolium cations. The liquefaction yield could be improved with increasing the acidity of BAILs and reached 71.5 % when 1‐(4‐butylsulfonic)‐3‐methylimidazolium hydrogensulfate was used as catalyst with the 6 : 1 mass ratio of 1‐octanol to sawdust and at 423 K …”

“…The catalytic performances of AILs containing HSO 4 − anion and acid functionalized imidazolium cations have been investigated for biomass liquefaction in 1‐octanol and in polyethylene glycol 400 – glycerol mixtures . These experiments showed that fir sawdust could be liquefied up to 99 % using 0.3 M 1‐(3‐propylsulfonic)‐3‐methylimidazolium chloride as the catalyst at 150 °C.…”