Fractionation of Sugar Cane with Hot, Compressed, Liquid Water
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- 作者：Stephen Glen Allen ; Lance Cameron Kam ; Andreas Joseph Zemann ; and Michael Jerry Antal ; Jr.
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：1996
- 出版时间：August 1996
- 年：1996
- 卷：35
- 期：8
- 页码：2709 - 2715
- 全文大小：202K
- 年卷期：v.35,no.8(August 1996)
- ISSN：1520-5045
文摘
Sugar-cane bagasse and leaves (10-15 g oven-dry basis) werefractionated without size reductionby a rapid (45 s to 4 min), immersed percolation using only hot(190-230 
C), compressed (P >Psat), liquid water (0.6-1.2 kg). Over50% of the biomass could be solubilized. All of thehemicellulose, together with much of the acid-insoluble lignin in thebagasse (>60%), wassolubilized, while less than 10% of the cellulose entered the liquidphase. Moreover, recovery ofthe hemicellulose as monomeric sugars (after a mild posthydrolysis)exceeded 80%. Less than5% of the hemicellulose was converted to furfural. Percolationbeyond that needed to immersethe biomass in hot liquid water did not result in increasedsolubilization. The yield oflignocellulosic residue was also not sensitive to the form of the sugarcane used (bagasse orleaves) or its moisture content (8-50%). Commercialapplications for this fractionation processinclude the pretreatment of lignocellulosics for bioconversion toethanol and the production ofpulp and paper products.
C), compressed (P >Psat), liquid water (0.6-1.2 kg). Over50% of the biomass could be solubilized. All of thehemicellulose, together with much of the acid-insoluble lignin in thebagasse (>60%), wassolubilized, while less than 10% of the cellulose entered the liquidphase. Moreover, recovery ofthe hemicellulose as monomeric sugars (after a mild posthydrolysis)exceeded 80%. Less than5% of the hemicellulose was converted to furfural. Percolationbeyond that needed to immersethe biomass in hot liquid water did not result in increasedsolubilization. The yield oflignocellulosic residue was also not sensitive to the form of the sugarcane used (bagasse orleaves) or its moisture content (8-50%). Commercialapplications for this fractionation processinclude the pretreatment of lignocellulosics for bioconversion toethanol and the production ofpulp and paper products.