Pretreatment of switchgrass by steam explosion in a semi-continuous pre-pilot reactor

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

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Pretreatment of switchgrass by steam explosion in a semi-continuous pre-pilot reactor. / Bonfiglio, Fernando; Cagno, Matías; Rey, Fabiana; Torres, Marina; Böthig, Silvia; Menéndez, Pilar; Mussatto, Solange I.

In: Biomass and Bioenergy, Vol. 121, 2019, p. 41-47.

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

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Bonfiglio, Fernando ; Cagno, Matías ; Rey, Fabiana ; Torres, Marina ; Böthig, Silvia ; Menéndez, Pilar ; Mussatto, Solange I. / Pretreatment of switchgrass by steam explosion in a semi-continuous pre-pilot reactor. In: Biomass and Bioenergy. 2019 ; Vol. 121. pp. 41-47.

Bibtex

@article{76eb6af78dca4e03add87bdc530ec4f3,
title = "Pretreatment of switchgrass by steam explosion in a semi-continuous pre-pilot reactor",
abstract = "Switchgrass (Panicum virgatum) is a perennial grass highly valued as an energy crop resource for the production of bioethanol due to its high carbohydrate content, fast growth, and ability to grow in lands that cannot support crop or food production. In the present study, this biomass was submitted to steam explosion pretreatment in a semi-continuous pre-pilot reactor with the aim of obtaining a pretreated solid with high digestibility for enzymatic hydrolysis. Different conditions of temperature (170–200 °C) and residence time (5–15 min), leading to different severity factors (2.76–4.12) were used for steam explosion pretreatment, which were combined through a 22 central composite design. The results revealed that both variables had great influence in the process, affecting both the biomass structure and the saccharification yield, as a consequence. However, in the range of values evaluated in this study, the effect of the temperature was more prominent than the effect of the residence time. The best saccharification yield (88.3{\%}) was obtained when using the biomass pretreated at 200 °C for 10 min. Similar result was obtained using a commercial cellulose pulp as feedstock for enzymatic hydrolysis, confirming that the best conditions for switchgrass pretreatment in the pre-pilot scale were successfully established.",
keywords = "Optimization, Pre-pilot reactor, Saccharification, Steam explosion pretreatment, Switchgrass",
author = "Fernando Bonfiglio and Mat{\'i}as Cagno and Fabiana Rey and Marina Torres and Silvia B{\"o}thig and Pilar Men{\'e}ndez and Mussatto, {Solange I.}",
year = "2019",
doi = "10.1016/j.biombioe.2018.12.013",
language = "English",
volume = "121",
pages = "41--47",
journal = "Biomass & Bioenergy",
issn = "0961-9534",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Pretreatment of switchgrass by steam explosion in a semi-continuous pre-pilot reactor

AU - Bonfiglio, Fernando

AU - Cagno, Matías

AU - Rey, Fabiana

AU - Torres, Marina

AU - Böthig, Silvia

AU - Menéndez, Pilar

AU - Mussatto, Solange I.

PY - 2019

Y1 - 2019

N2 - Switchgrass (Panicum virgatum) is a perennial grass highly valued as an energy crop resource for the production of bioethanol due to its high carbohydrate content, fast growth, and ability to grow in lands that cannot support crop or food production. In the present study, this biomass was submitted to steam explosion pretreatment in a semi-continuous pre-pilot reactor with the aim of obtaining a pretreated solid with high digestibility for enzymatic hydrolysis. Different conditions of temperature (170–200 °C) and residence time (5–15 min), leading to different severity factors (2.76–4.12) were used for steam explosion pretreatment, which were combined through a 22 central composite design. The results revealed that both variables had great influence in the process, affecting both the biomass structure and the saccharification yield, as a consequence. However, in the range of values evaluated in this study, the effect of the temperature was more prominent than the effect of the residence time. The best saccharification yield (88.3%) was obtained when using the biomass pretreated at 200 °C for 10 min. Similar result was obtained using a commercial cellulose pulp as feedstock for enzymatic hydrolysis, confirming that the best conditions for switchgrass pretreatment in the pre-pilot scale were successfully established.

AB - Switchgrass (Panicum virgatum) is a perennial grass highly valued as an energy crop resource for the production of bioethanol due to its high carbohydrate content, fast growth, and ability to grow in lands that cannot support crop or food production. In the present study, this biomass was submitted to steam explosion pretreatment in a semi-continuous pre-pilot reactor with the aim of obtaining a pretreated solid with high digestibility for enzymatic hydrolysis. Different conditions of temperature (170–200 °C) and residence time (5–15 min), leading to different severity factors (2.76–4.12) were used for steam explosion pretreatment, which were combined through a 22 central composite design. The results revealed that both variables had great influence in the process, affecting both the biomass structure and the saccharification yield, as a consequence. However, in the range of values evaluated in this study, the effect of the temperature was more prominent than the effect of the residence time. The best saccharification yield (88.3%) was obtained when using the biomass pretreated at 200 °C for 10 min. Similar result was obtained using a commercial cellulose pulp as feedstock for enzymatic hydrolysis, confirming that the best conditions for switchgrass pretreatment in the pre-pilot scale were successfully established.

KW - Optimization

KW - Pre-pilot reactor

KW - Saccharification

KW - Steam explosion pretreatment

KW - Switchgrass

U2 - 10.1016/j.biombioe.2018.12.013

DO - 10.1016/j.biombioe.2018.12.013

M3 - Journal article

VL - 121

SP - 41

EP - 47

JO - Biomass & Bioenergy

JF - Biomass & Bioenergy

SN - 0961-9534

ER -