Chemical Recovery of γ-Valerolactone/Water Biorefinery

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Chemical Recovery of γ-Valerolactone/Water Biorefinery. / Lê, Huy Quang; Pokki, Juha Pekka; Borrega, Marc; Uusi-Kyyny, Petri; Alopaeus, Ville; Sixta, Herbert.

In: Industrial and Engineering Chemistry Research, Vol. 57, No. 44, 07.11.2018, p. 15147-15158.

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@article{21ad6fbeb6b5481db74b8664cb6f189b,
title = "Chemical Recovery of γ-Valerolactone/Water Biorefinery",
abstract = "We introduce the optimization of the pulping conditions and propose different chemical recovery options for a proven biorefinery concept based on γ-valerolactone (GVL)/water fractionation. The pulping process has been optimized whereby the liquor-to-wood (L:W) ratio could be reduced to 3 L/kg without compromising the pulp properties as raw material for textile fibers production. The recovery of the pulping solvent was performed through combinations of lignin precipitation by water addition, distillation at reduced pressure, and liquid CO2 extraction. With a two-step lignin precipitation coupled with vacuum distillation, more than 90{\%} of lignin and GVL could be recovered from the spent liquor. However, a significant part of GVL remained unrecoverable in the residue, which was a highly viscous liquid with complicated phase behavior. The recovery by lignin precipitation combined with liquid CO2 extraction could recover more than 85{\%} GVL and 90{\%} lignin without forming any problematic residue as in the distillation process. The remaining GVL remained in the raffinate containing a low amount of lignin and other compounds, which can be further processed to isolate the GVL and improve the recovery rate.",
author = "L{\^e}, {Huy Quang} and Pokki, {Juha Pekka} and Marc Borrega and Petri Uusi-Kyyny and Ville Alopaeus and Herbert Sixta",
year = "2018",
month = "11",
day = "7",
doi = "10.1021/acs.iecr.8b03723",
language = "English",
volume = "57",
pages = "15147--15158",
journal = "Industrial and Engineering Chemistry Research",
issn = "0888-5885",
publisher = "AMERICAN CHEMICAL SOCIETY",
number = "44",

}

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TY - JOUR

T1 - Chemical Recovery of γ-Valerolactone/Water Biorefinery

AU - Lê, Huy Quang

AU - Pokki, Juha Pekka

AU - Borrega, Marc

AU - Uusi-Kyyny, Petri

AU - Alopaeus, Ville

AU - Sixta, Herbert

PY - 2018/11/7

Y1 - 2018/11/7

N2 - We introduce the optimization of the pulping conditions and propose different chemical recovery options for a proven biorefinery concept based on γ-valerolactone (GVL)/water fractionation. The pulping process has been optimized whereby the liquor-to-wood (L:W) ratio could be reduced to 3 L/kg without compromising the pulp properties as raw material for textile fibers production. The recovery of the pulping solvent was performed through combinations of lignin precipitation by water addition, distillation at reduced pressure, and liquid CO2 extraction. With a two-step lignin precipitation coupled with vacuum distillation, more than 90% of lignin and GVL could be recovered from the spent liquor. However, a significant part of GVL remained unrecoverable in the residue, which was a highly viscous liquid with complicated phase behavior. The recovery by lignin precipitation combined with liquid CO2 extraction could recover more than 85% GVL and 90% lignin without forming any problematic residue as in the distillation process. The remaining GVL remained in the raffinate containing a low amount of lignin and other compounds, which can be further processed to isolate the GVL and improve the recovery rate.

AB - We introduce the optimization of the pulping conditions and propose different chemical recovery options for a proven biorefinery concept based on γ-valerolactone (GVL)/water fractionation. The pulping process has been optimized whereby the liquor-to-wood (L:W) ratio could be reduced to 3 L/kg without compromising the pulp properties as raw material for textile fibers production. The recovery of the pulping solvent was performed through combinations of lignin precipitation by water addition, distillation at reduced pressure, and liquid CO2 extraction. With a two-step lignin precipitation coupled with vacuum distillation, more than 90% of lignin and GVL could be recovered from the spent liquor. However, a significant part of GVL remained unrecoverable in the residue, which was a highly viscous liquid with complicated phase behavior. The recovery by lignin precipitation combined with liquid CO2 extraction could recover more than 85% GVL and 90% lignin without forming any problematic residue as in the distillation process. The remaining GVL remained in the raffinate containing a low amount of lignin and other compounds, which can be further processed to isolate the GVL and improve the recovery rate.

UR - http://www.scopus.com/inward/record.url?scp=85056482495&partnerID=8YFLogxK

U2 - 10.1021/acs.iecr.8b03723

DO - 10.1021/acs.iecr.8b03723

M3 - Article

VL - 57

SP - 15147

EP - 15158

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

SN - 0888-5885

IS - 44

ER -

ID: 29793553