Integrated Two-Stage Alkaline–Oxidative Pretreatment of Hybrid Poplar. Part 2
Impact of Cu-Catalyzed Alkaline Hydrogen Peroxide Pretreatment Conditions on Process Performance and Economics
Document identifier: oai:DiVA.org:ltu-76144
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10.1021/acs.iecr.9b00901Keyword: Engineering and Technology,
Industrial Biotechnology,
Bioprocess Technology,
Teknik och teknologier,
Industriell bioteknik,
Bioprocessteknik,
Biokemisk processteknik,
Biochemical Process EngineeringPublication year: 2019Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: Two-stage alkaline/copper 2,2′-bipyridine-catalyzed alkaline hydrogen peroxide (Cu-AHP) pretreatment is an effective strategy for improving the enzymatic digestibility of hybrid poplar. To reduce the chemical inputs and processing costs associated with this process, we investigated the effect of increasing the temperature for both the alkaline pre-extraction and the Cu-AHP pretreatment stages. The results indicate that increasing the alkaline pre-extraction and the Cu-AHP pretreatment temperatures from 30 to 120 and 80 °C, respectively, allowed us to reduce both the pretreatment time of the Cu-AHP stage and the chemical loadings. Incubating alkaline pre-extracted hybrid poplar for 12 h with 10% NaOH (w/w biomass), 8% hydrogen peroxide (w/w biomass), and a Cu2+ and 2,2′-bipyridine (bpy) concentration of 1 mM yielded monomeric sugar yields of approximately 77% glucose and 66% xylose (based on the initial sugar composition) following enzymatic hydrolysis. Technoeconomic analysis (TEA) indicates that these changes to the two-stage alkaline/Cu-AHP pretreatment process could potentially reduce the minimum fuel selling price (MFSP) by more than $1.00 per gallon of biofuel compared to the reference case where both stages were conducted at 30 °C with higher chemical inputs.
Authors
Zhaoyang Yuan
Department of Biochemistry & Molecular Biology, Michigan State University, East Lansing, Michigan, United States
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Sandip Kumar Singh
Department of Chemical & Biological Engineering, Montana State University, Montana, United States
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Bryan Bals
Michigan Biotechnology Institute, Lansing, Michigan, United States
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David B. Hodge
Luleå tekniska universitet; Industriell miljö- och processteknik; Department of Chemical & Biological Engineering, Montana State University, Bozeman, Montana , United States
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Eric L. Hegg
Department of Biochemistry & Molecular Biology, Michigan State University, East Lansing, Michigan, United States
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identifier: oai:DiVA.org:ltu-76144
datestamp: 2021-04-19T12:51:26Z
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recordContentSource: ltu
recordCreationDate: 2019-09-27
identifier:
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76144
10.1021/acs.iecr.9b00901
2-s2.0-85071434958
titleInfo:
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lang: eng
title: Integrated Two-Stage Alkaline–Oxidative Pretreatment of Hybrid Poplar. Part 2
subTitle: Impact of Cu-Catalyzed Alkaline Hydrogen Peroxide Pretreatment Conditions on Process Performance and Economics
abstract: Two-stage alkaline/copper 22′-bipyridine-catalyzed alkaline hydrogen peroxide (Cu-AHP) pretreatment is an effective strategy for improving the enzymatic digestibility of hybrid poplar. To reduce the chemical inputs and processing costs associated with this process we investigated the effect of increasing the temperature for both the alkaline pre-extraction and the Cu-AHP pretreatment stages. The results indicate that increasing the alkaline pre-extraction and the Cu-AHP pretreatment temperatures from 30 to 120 and 80 °C respectively allowed us to reduce both the pretreatment time of the Cu-AHP stage and the chemical loadings. Incubating alkaline pre-extracted hybrid poplar for 12 h with 10% NaOH (w/w biomass) 8% hydrogen peroxide (w/w biomass) and a Cu2+ and 22′-bipyridine (bpy) concentration of 1 mM yielded monomeric sugar yields of approximately 77% glucose and 66% xylose (based on the initial sugar composition) following enzymatic hydrolysis. Technoeconomic analysis (TEA) indicates that these changes to the two-stage alkaline/Cu-AHP pretreatment process could potentially reduce the minimum fuel selling price (MFSP) by more than $1.00 per gallon of biofuel compared to the reference case where both stages were conducted at 30 °C with higher chemical inputs.
subject:
@attributes:
lang: eng
authority: uka.se
topic:
Engineering and Technology
Industrial Biotechnology
Bioprocess Technology
@attributes:
lang: swe
authority: uka.se
topic:
Teknik och teknologier
Industriell bioteknik
Bioprocessteknik
@attributes:
lang: swe
authority: ltu
topic: Biokemisk processteknik
genre: Research subject
@attributes:
lang: eng
authority: ltu
topic: Biochemical Process Engineering
genre: Research subject
language:
languageTerm: eng
genre:
publication/journal-article
ref
note:
Published
5
Validerad;2019;Nivå 2;2019-09-27 (johcin)
name:
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Yuan
Zhaoyang
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roleTerm: aut
affiliation: Department of Biochemistry & Molecular Biology Michigan State University East Lansing Michigan United States
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namePart:
Singh
Sandip Kumar
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affiliation: Department of Chemical & Biological Engineering Montana State University Montana United States
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Bals
Bryan
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affiliation: Michigan Biotechnology Institute Lansing Michigan United States
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authority: ltu
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Hodge
David B.
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affiliation:
Luleå tekniska universitet
Industriell miljö- och processteknik
Department of Chemical & Biological Engineering Montana State University Bozeman Montana United States
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davhod
0000-0002-9313-941x
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Hegg
Eric L.
role:
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affiliation: Department of Biochemistry & Molecular Biology Michigan State University East Lansing Michigan United States
originInfo:
dateIssued: 2019
publisher: American Chemical Society (ACS)
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title: Industrial & Engineering Chemistry Research
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0888-5885
1520-5045
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type: volume
number: 58
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type: issue
number: 35
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