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Analysis and optimisation of a novel “bio-brewery” approach: Production of bio-fuels and bio-chemicals by microwave-assisted, hydrothermal liquefaction of brewers’ spent grains

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Analysis and optimisation of a novel “bio-brewery” approach : Production of bio-fuels and bio-chemicals by microwave-assisted, hydrothermal liquefaction of brewers’ spent grains. / Lorente, Almudena; Remón, Javier; Budarin, Vitaliy L.; Sánchez-Verdú, Prado; Moreno, Andrés; Clark, James H.

In: Energy Conversion and Management, Vol. 185, 01.04.2019, p. 410-430.

Research output: Contribution to journalArticlepeer-review

Harvard

Lorente, A, Remón, J, Budarin, VL, Sánchez-Verdú, P, Moreno, A & Clark, JH 2019, 'Analysis and optimisation of a novel “bio-brewery” approach: Production of bio-fuels and bio-chemicals by microwave-assisted, hydrothermal liquefaction of brewers’ spent grains', Energy Conversion and Management, vol. 185, pp. 410-430. https://doi.org/10.1016/j.enconman.2019.01.111

APA

Lorente, A., Remón, J., Budarin, V. L., Sánchez-Verdú, P., Moreno, A., & Clark, J. H. (2019). Analysis and optimisation of a novel “bio-brewery” approach: Production of bio-fuels and bio-chemicals by microwave-assisted, hydrothermal liquefaction of brewers’ spent grains. Energy Conversion and Management, 185, 410-430. https://doi.org/10.1016/j.enconman.2019.01.111

Vancouver

Lorente A, Remón J, Budarin VL, Sánchez-Verdú P, Moreno A, Clark JH. Analysis and optimisation of a novel “bio-brewery” approach: Production of bio-fuels and bio-chemicals by microwave-assisted, hydrothermal liquefaction of brewers’ spent grains. Energy Conversion and Management. 2019 Apr 1;185:410-430. https://doi.org/10.1016/j.enconman.2019.01.111

Author

Lorente, Almudena ; Remón, Javier ; Budarin, Vitaliy L. ; Sánchez-Verdú, Prado ; Moreno, Andrés ; Clark, James H. / Analysis and optimisation of a novel “bio-brewery” approach : Production of bio-fuels and bio-chemicals by microwave-assisted, hydrothermal liquefaction of brewers’ spent grains. In: Energy Conversion and Management. 2019 ; Vol. 185. pp. 410-430.

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@article{1fd359cd7a0b4738a6b7f245c5952b94,
title = "Analysis and optimisation of a novel “bio-brewery” approach: Production of bio-fuels and bio-chemicals by microwave-assisted, hydrothermal liquefaction of brewers{\textquoteright} spent grains",
abstract = "This work firstly explores the feasibility of using a novel microwave-assisted, catalysed, hydrothermal process for the valorisation of brewers{\textquoteright} spent grains (BSGs), examining the effects of the temperature (180–250 °C), pressure (50–130 bar), reaction time (0–2 h) and catalyst amount (Ni-Co/Al-Mg, 0–0.25 g cat/g biomass). This route turned out to be a very promising approach for the production of bio-fuels (bio-oil and bio-char) and platform chemicals (sugar rich aqueous solutions) in a single unit, helping the development of an innovative bio-refinery around BSGs. The overall conversion and the yields to gas, aqueous fraction and bio-oil varied by 31–68%, 10–33%, 9–48% and 4–14%, respectively. The bio-oil was made up a complex mixture of phenols (0–26%), ketones (0–80%), aldehydes (0–57%), carboxylic acids (0–18%) and nitrogen compounds (0–76%). The proportions of C, H, N and O in the bio-oil varied as follow: 15–61 wt%, 5–10 wt%, 1–6 wt% and 26–77 wt%, respectively, which shifted its higher heating value (HHV) between 9 and 27 MJ/kg. The liquid fraction comprised a mixture of DP > 6 oligosaccharides (67–98 C-wt.%), DP2-6 oligosaccharides (0–10 C-wt.%), saccharides (0.2–7 C-wt.%), carboxylic acids (0–7 C-wt.%) and furans (0–27 C-wt.%). The spent solid after the experiments resembled an energetic like bio-char product, whose proportions of C, H, O and N varied by 35–72 wt%, 4–8 wt%, 1–4 wt% and 18–57 wt% and its HHV shifted between 9 and 32 MJ/kg. The optimisation of the process revealed that using a temperature of 250 °C and a pressure of 125 bar for 2 h, it is possible to convert the original material into high-energy biofuels: (8%) bio-oil (26 MJ/kg) and (35%) bio-char (32 MJ/kg); together with a (31%) saccharide-rich (>99 C-wt.%) aqueous solution, thus converting this process into a very promising approach to achieve an environmentally-friendly and integral valorisation of brewers{\textquoteright} spent grains.",
keywords = "Bio-fuels, Brewers{\textquoteright} spent grains, Hydrothermal processes, Microwave heating, Value-added chemicals",
author = "Almudena Lorente and Javier Rem{\'o}n and Budarin, {Vitaliy L.} and Prado S{\'a}nchez-Verd{\'u} and Andr{\'e}s Moreno and Clark, {James H.}",
note = "{\textcopyright} 2019 Elsevier Ltd. All rights reserved. This is an author-produced version of the published paper. Uploaded in accordance with the publisher{\textquoteright}s self-archiving policy. ",
year = "2019",
month = apr,
day = "1",
doi = "10.1016/j.enconman.2019.01.111",
language = "English",
volume = "185",
pages = "410--430",
journal = "Energy Conversion and Management",
issn = "0196-8904",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Analysis and optimisation of a novel “bio-brewery” approach

T2 - Production of bio-fuels and bio-chemicals by microwave-assisted, hydrothermal liquefaction of brewers’ spent grains

AU - Lorente, Almudena

AU - Remón, Javier

AU - Budarin, Vitaliy L.

AU - Sánchez-Verdú, Prado

AU - Moreno, Andrés

AU - Clark, James H.

N1 - © 2019 Elsevier Ltd. All rights reserved. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.

PY - 2019/4/1

Y1 - 2019/4/1

N2 - This work firstly explores the feasibility of using a novel microwave-assisted, catalysed, hydrothermal process for the valorisation of brewers’ spent grains (BSGs), examining the effects of the temperature (180–250 °C), pressure (50–130 bar), reaction time (0–2 h) and catalyst amount (Ni-Co/Al-Mg, 0–0.25 g cat/g biomass). This route turned out to be a very promising approach for the production of bio-fuels (bio-oil and bio-char) and platform chemicals (sugar rich aqueous solutions) in a single unit, helping the development of an innovative bio-refinery around BSGs. The overall conversion and the yields to gas, aqueous fraction and bio-oil varied by 31–68%, 10–33%, 9–48% and 4–14%, respectively. The bio-oil was made up a complex mixture of phenols (0–26%), ketones (0–80%), aldehydes (0–57%), carboxylic acids (0–18%) and nitrogen compounds (0–76%). The proportions of C, H, N and O in the bio-oil varied as follow: 15–61 wt%, 5–10 wt%, 1–6 wt% and 26–77 wt%, respectively, which shifted its higher heating value (HHV) between 9 and 27 MJ/kg. The liquid fraction comprised a mixture of DP > 6 oligosaccharides (67–98 C-wt.%), DP2-6 oligosaccharides (0–10 C-wt.%), saccharides (0.2–7 C-wt.%), carboxylic acids (0–7 C-wt.%) and furans (0–27 C-wt.%). The spent solid after the experiments resembled an energetic like bio-char product, whose proportions of C, H, O and N varied by 35–72 wt%, 4–8 wt%, 1–4 wt% and 18–57 wt% and its HHV shifted between 9 and 32 MJ/kg. The optimisation of the process revealed that using a temperature of 250 °C and a pressure of 125 bar for 2 h, it is possible to convert the original material into high-energy biofuels: (8%) bio-oil (26 MJ/kg) and (35%) bio-char (32 MJ/kg); together with a (31%) saccharide-rich (>99 C-wt.%) aqueous solution, thus converting this process into a very promising approach to achieve an environmentally-friendly and integral valorisation of brewers’ spent grains.

AB - This work firstly explores the feasibility of using a novel microwave-assisted, catalysed, hydrothermal process for the valorisation of brewers’ spent grains (BSGs), examining the effects of the temperature (180–250 °C), pressure (50–130 bar), reaction time (0–2 h) and catalyst amount (Ni-Co/Al-Mg, 0–0.25 g cat/g biomass). This route turned out to be a very promising approach for the production of bio-fuels (bio-oil and bio-char) and platform chemicals (sugar rich aqueous solutions) in a single unit, helping the development of an innovative bio-refinery around BSGs. The overall conversion and the yields to gas, aqueous fraction and bio-oil varied by 31–68%, 10–33%, 9–48% and 4–14%, respectively. The bio-oil was made up a complex mixture of phenols (0–26%), ketones (0–80%), aldehydes (0–57%), carboxylic acids (0–18%) and nitrogen compounds (0–76%). The proportions of C, H, N and O in the bio-oil varied as follow: 15–61 wt%, 5–10 wt%, 1–6 wt% and 26–77 wt%, respectively, which shifted its higher heating value (HHV) between 9 and 27 MJ/kg. The liquid fraction comprised a mixture of DP > 6 oligosaccharides (67–98 C-wt.%), DP2-6 oligosaccharides (0–10 C-wt.%), saccharides (0.2–7 C-wt.%), carboxylic acids (0–7 C-wt.%) and furans (0–27 C-wt.%). The spent solid after the experiments resembled an energetic like bio-char product, whose proportions of C, H, O and N varied by 35–72 wt%, 4–8 wt%, 1–4 wt% and 18–57 wt% and its HHV shifted between 9 and 32 MJ/kg. The optimisation of the process revealed that using a temperature of 250 °C and a pressure of 125 bar for 2 h, it is possible to convert the original material into high-energy biofuels: (8%) bio-oil (26 MJ/kg) and (35%) bio-char (32 MJ/kg); together with a (31%) saccharide-rich (>99 C-wt.%) aqueous solution, thus converting this process into a very promising approach to achieve an environmentally-friendly and integral valorisation of brewers’ spent grains.

KW - Bio-fuels

KW - Brewers’ spent grains

KW - Hydrothermal processes

KW - Microwave heating

KW - Value-added chemicals

UR - http://www.scopus.com/inward/record.url?scp=85061727867&partnerID=8YFLogxK

U2 - 10.1016/j.enconman.2019.01.111

DO - 10.1016/j.enconman.2019.01.111

M3 - Article

AN - SCOPUS:85061727867

VL - 185

SP - 410

EP - 430

JO - Energy Conversion and Management

JF - Energy Conversion and Management

SN - 0196-8904

ER -