Evaluation of organosolv pretreatment for bioethanol production from lignocellulosic biomass: solvent recycle and process integration

André Rodrigues Gurgel da Silva, Massimiliano Errico, Ben Guang Rong*

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Resumé

The production of bioethanol from lignocellulosic feedstock has proven to be a complex task due to the recalcitrant structure of the biomass. Organosolv pretreatment is a promising alternative to remove nearly pure lignin from the biomass and make the sugars available for conversion. However, in order for the organosolv pretreatment to be technically feasible, an efficient solvent recycle is required. This work studied the complete process for lignocellulosic bioethanol production based on organosolv pretreatment method. First, process synthesis is applied to devise six process alternatives for the bioethanol production based on theoretical and experimental works. The analysis was focused on the solvent recovery and recirculation, integrating the pretreatment and product separation and purification areas. Technical and economic indicators were employed to reveal the best alternative among the proposed designs. The results showed that the minimum ethanol selling price for the process was US$1.27/kg of ethanol with a total energy consumption of 29.02 kWh per kilogram of ethanol produced, with 43% of that from hot utilities and 57% from cold utilities.

OriginalsprogEngelsk
TidsskriftBiomass Conversion and Biorefinery
Vol/bind8
Udgave nummer2
Sider (fra-til)397-411
ISSN2190-6815
DOI
StatusUdgivet - 2018

Fingeraftryk

Bioethanol
Biomass
Ethanol
Lignin
Sugars
Feedstocks
Purification
Sales
Energy utilization
Recovery
Economics

Citer dette

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title = "Evaluation of organosolv pretreatment for bioethanol production from lignocellulosic biomass: solvent recycle and process integration",
abstract = "The production of bioethanol from lignocellulosic feedstock has proven to be a complex task due to the recalcitrant structure of the biomass. Organosolv pretreatment is a promising alternative to remove nearly pure lignin from the biomass and make the sugars available for conversion. However, in order for the organosolv pretreatment to be technically feasible, an efficient solvent recycle is required. This work studied the complete process for lignocellulosic bioethanol production based on organosolv pretreatment method. First, process synthesis is applied to devise six process alternatives for the bioethanol production based on theoretical and experimental works. The analysis was focused on the solvent recovery and recirculation, integrating the pretreatment and product separation and purification areas. Technical and economic indicators were employed to reveal the best alternative among the proposed designs. The results showed that the minimum ethanol selling price for the process was US$1.27/kg of ethanol with a total energy consumption of 29.02 kWh per kilogram of ethanol produced, with 43{\%} of that from hot utilities and 57{\%} from cold utilities.",
keywords = "Bioethanol, Lignocellulosic biomass, Organosolv pretreatment, Process simulation, Process synthesis",
author = "{da Silva}, {Andr{\'e} Rodrigues Gurgel} and Massimiliano Errico and Rong, {Ben Guang}",
year = "2018",
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language = "English",
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Evaluation of organosolv pretreatment for bioethanol production from lignocellulosic biomass : solvent recycle and process integration. / da Silva, André Rodrigues Gurgel; Errico, Massimiliano; Rong, Ben Guang.

I: Biomass Conversion and Biorefinery, Bind 8, Nr. 2, 2018, s. 397-411.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Evaluation of organosolv pretreatment for bioethanol production from lignocellulosic biomass

T2 - solvent recycle and process integration

AU - da Silva, André Rodrigues Gurgel

AU - Errico, Massimiliano

AU - Rong, Ben Guang

PY - 2018

Y1 - 2018

N2 - The production of bioethanol from lignocellulosic feedstock has proven to be a complex task due to the recalcitrant structure of the biomass. Organosolv pretreatment is a promising alternative to remove nearly pure lignin from the biomass and make the sugars available for conversion. However, in order for the organosolv pretreatment to be technically feasible, an efficient solvent recycle is required. This work studied the complete process for lignocellulosic bioethanol production based on organosolv pretreatment method. First, process synthesis is applied to devise six process alternatives for the bioethanol production based on theoretical and experimental works. The analysis was focused on the solvent recovery and recirculation, integrating the pretreatment and product separation and purification areas. Technical and economic indicators were employed to reveal the best alternative among the proposed designs. The results showed that the minimum ethanol selling price for the process was US$1.27/kg of ethanol with a total energy consumption of 29.02 kWh per kilogram of ethanol produced, with 43% of that from hot utilities and 57% from cold utilities.

AB - The production of bioethanol from lignocellulosic feedstock has proven to be a complex task due to the recalcitrant structure of the biomass. Organosolv pretreatment is a promising alternative to remove nearly pure lignin from the biomass and make the sugars available for conversion. However, in order for the organosolv pretreatment to be technically feasible, an efficient solvent recycle is required. This work studied the complete process for lignocellulosic bioethanol production based on organosolv pretreatment method. First, process synthesis is applied to devise six process alternatives for the bioethanol production based on theoretical and experimental works. The analysis was focused on the solvent recovery and recirculation, integrating the pretreatment and product separation and purification areas. Technical and economic indicators were employed to reveal the best alternative among the proposed designs. The results showed that the minimum ethanol selling price for the process was US$1.27/kg of ethanol with a total energy consumption of 29.02 kWh per kilogram of ethanol produced, with 43% of that from hot utilities and 57% from cold utilities.

KW - Bioethanol

KW - Lignocellulosic biomass

KW - Organosolv pretreatment

KW - Process simulation

KW - Process synthesis

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DO - 10.1007/s13399-017-0292-4

M3 - Journal article

AN - SCOPUS:85047226149

VL - 8

SP - 397

EP - 411

JO - Biomass Conversion and Biorefinery

JF - Biomass Conversion and Biorefinery

SN - 2190-6815

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