An assessment of different integration strategies of hydrothermal carbonisation and anaerobic digestion of water hyacinth

Aaron Brown; Jessica Adams; Oliver Grasham; Miller Carmargo-Valero; Andrew Ross

doi:10.3390/en13225983

An assessment of different integration strategies of hydrothermal carbonisation and anaerobic digestion of water hyacinth

Aaron Brown, Jessica Adams, Oliver Grasham, Miller Carmargo-Valero, Andrew Ross

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Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

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Water hyacinth (WH) is an invasive aquatic macrophyte that dominates freshwater bodies across the world. However, due to its rapid growth rate and wide-spread global presence, WH could offer great potential as a biomass feedstock, including for bioenergy generation. This study compares different integration strategies of hydrothermal carbonisation (HTC) and anaerobic digestion (AD) using WH, across a range of temperatures. These include (i) hydrochar combustion and process water digestion, (ii) hydrochar digestion, (iii) slurry digestion. HTC reactions were conducted at 150 °C, 200 °C, and 250 °C. Separation of hydrochars for combustion and process waters for digestion offers the most energetically-feasible valorisation route. However, hydrochars produced from WH display slagging and fouling tendencies; limiting their use in large-scale combustion. AD of WH slurry produced at 150 °C appears to be energetically-feasible and has the potential to also be a viable integration strategy between HTC and AD, using WH.

Iaith wreiddiol	Saesneg
Rhif yr erthygl	5983
Nifer y tudalennau	26
Cyfnodolyn	Energies
Cyfrol	13
Rhif cyhoeddi	22
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.3390/en13225983
Statws	Cyhoeddwyd - 16 Tach 2020

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title = "An assessment of different integration strategies of hydrothermal carbonisation and anaerobic digestion of water hyacinth",

abstract = "Water hyacinth (WH) is an invasive aquatic macrophyte that dominates freshwater bodies across the world. However, due to its rapid growth rate and wide-spread global presence, WH could offer great potential as a biomass feedstock, including for bioenergy generation. This study compares different integration strategies of hydrothermal carbonisation (HTC) and anaerobic digestion (AD) using WH, across a range of temperatures. These include (i) hydrochar combustion and process water digestion, (ii) hydrochar digestion, (iii) slurry digestion. HTC reactions were conducted at 150 °C, 200 °C, and 250 °C. Separation of hydrochars for combustion and process waters for digestion offers the most energetically-feasible valorisation route. However, hydrochars produced from WH display slagging and fouling tendencies; limiting their use in large-scale combustion. AD of WH slurry produced at 150 °C appears to be energetically-feasible and has the potential to also be a viable integration strategy between HTC and AD, using WH.",

keywords = "Anaerobic digestion, Biomethane, Hydrochar, Hydrothermal carbonization, Process water, Water hyacinth",

author = "Aaron Brown and Jessica Adams and Oliver Grasham and Miller Carmargo-Valero and Andrew Ross",

note = "Funding Information: Funding: This research was funded by the Engineering & Physical Sciences Research Council (EPSRC) (grant no. EP/L014912/1) and the Biotechnology and Biological Sciences Research Council (BBSRC) through the BEFWAM project (grant no. BB/S011439/1). JMMA{\textquoteright}s time on this research was funded by WEFO/ERDF grant number 80851 (BEACON+). Publisher Copyright: {\textcopyright} 2020 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2020",

month = nov,

day = "16",

doi = "10.3390/en13225983",

language = "English",

volume = "13",

journal = "Energies",

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T1 - An assessment of different integration strategies of hydrothermal carbonisation and anaerobic digestion of water hyacinth

AU - Brown, Aaron

AU - Adams, Jessica

AU - Grasham, Oliver

AU - Carmargo-Valero, Miller

AU - Ross, Andrew

N1 - Funding Information: Funding: This research was funded by the Engineering & Physical Sciences Research Council (EPSRC) (grant no. EP/L014912/1) and the Biotechnology and Biological Sciences Research Council (BBSRC) through the BEFWAM project (grant no. BB/S011439/1). JMMA’s time on this research was funded by WEFO/ERDF grant number 80851 (BEACON+). Publisher Copyright: © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2020/11/16

Y1 - 2020/11/16

N2 - Water hyacinth (WH) is an invasive aquatic macrophyte that dominates freshwater bodies across the world. However, due to its rapid growth rate and wide-spread global presence, WH could offer great potential as a biomass feedstock, including for bioenergy generation. This study compares different integration strategies of hydrothermal carbonisation (HTC) and anaerobic digestion (AD) using WH, across a range of temperatures. These include (i) hydrochar combustion and process water digestion, (ii) hydrochar digestion, (iii) slurry digestion. HTC reactions were conducted at 150 °C, 200 °C, and 250 °C. Separation of hydrochars for combustion and process waters for digestion offers the most energetically-feasible valorisation route. However, hydrochars produced from WH display slagging and fouling tendencies; limiting their use in large-scale combustion. AD of WH slurry produced at 150 °C appears to be energetically-feasible and has the potential to also be a viable integration strategy between HTC and AD, using WH.

AB - Water hyacinth (WH) is an invasive aquatic macrophyte that dominates freshwater bodies across the world. However, due to its rapid growth rate and wide-spread global presence, WH could offer great potential as a biomass feedstock, including for bioenergy generation. This study compares different integration strategies of hydrothermal carbonisation (HTC) and anaerobic digestion (AD) using WH, across a range of temperatures. These include (i) hydrochar combustion and process water digestion, (ii) hydrochar digestion, (iii) slurry digestion. HTC reactions were conducted at 150 °C, 200 °C, and 250 °C. Separation of hydrochars for combustion and process waters for digestion offers the most energetically-feasible valorisation route. However, hydrochars produced from WH display slagging and fouling tendencies; limiting their use in large-scale combustion. AD of WH slurry produced at 150 °C appears to be energetically-feasible and has the potential to also be a viable integration strategy between HTC and AD, using WH.

KW - Anaerobic digestion

KW - Biomethane

KW - Hydrochar

KW - Hydrothermal carbonization

KW - Process water

KW - Water hyacinth

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VL - 13

JO - Energies

JF - Energies

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ER -

An assessment of different integration strategies of hydrothermal carbonisation and anaerobic digestion of water hyacinth

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NDC y CU

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Ffeiliau eraill a chysylltiadau

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