Integration of Power to Methane in a Waste Water Treatment Plant:  A Feasibility Study

Tim Patterson; Savvas Savvas; Alex Chong; Ian Law; Richard Dinsdale; Sandra Esteves

doi:10.1016/j.biortech.2017.09.048

Integration of Power to Methane in a Waste Water Treatment Plant: A Feasibility Study

Tim Patterson, Savvas Savvas, Alex Chong, Ian Law, Richard Dinsdale, Sandra Esteves

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Abstract

The integration of a biomethanation system within a wastewater treatment plant for conversion of CO2 and H2 to CH4 has been studied. Results indicate that the CO2 could be utilised to produce an additional 13,420 m3 / day of CH4, equivalent to approximately 133,826 kWh of energy. The whole conversion process including electrolysis was found to have an energetic efficiency of 66.2 %. The currently un-optimised biomethanation element of the process had a parasitic load of 19.9 % of produced energy and strategies to reduce this to <5 % are identified. The system could provide strategic benefits such as integrated management of electricity and gas networks, energy storage and maximising the deployment and efficiency of renewable energy assets. However, no policy or financial frameworks exist to attribute value to these increasingly important functions.

Original language	English
Article number	048
Pages (from-to)	1049-1057
Journal	Bioresource Technology
Volume	245
Issue number	Part A
Early online date	8 Sept 2017
DOIs	https://doi.org/10.1016/j.biortech.2017.09.048
Publication status	Published - Dec 2017

Keywords

Biomethanation
Power to Gas
Power to Methane
Biogas Upgrading
Grid Balancing

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.biortech.2017.09.048Licence: CC BY-NC-ND

Biomethanation Feasibility Paper v.16 (BITE Structure)Accepted author manuscript, 1.33 MBLicence: CC BY-NC-ND

Cite this

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title = "Integration of Power to Methane in a Waste Water Treatment Plant: A Feasibility Study",

abstract = "The integration of a biomethanation system within a wastewater treatment plant for conversion of CO2 and H2 to CH4 has been studied. Results indicate that the CO2 could be utilised to produce an additional 13,420 m3 / day of CH4, equivalent to approximately 133,826 kWh of energy. The whole conversion process including electrolysis was found to have an energetic efficiency of 66.2 %. The currently un-optimised biomethanation element of the process had a parasitic load of 19.9 % of produced energy and strategies to reduce this to <5 % are identified. The system could provide strategic benefits such as integrated management of electricity and gas networks, energy storage and maximising the deployment and efficiency of renewable energy assets. However, no policy or financial frameworks exist to attribute value to these increasingly important functions.",

keywords = "Biomethanation, Power to Gas, Power to Methane, Biogas Upgrading , Grid Balancing",

author = "Tim Patterson and Savvas Savvas and Alex Chong and Ian Law and Richard Dinsdale and Sandra Esteves",

note = "Research was undertaken as part of the IUK funded project “Synthetic Methane: Enabling Renewable Energy Storage by Integrating the Electricity and Gas Networks” (Project No.132006), funded under the Integrated Energy Systems Supply Chains – Feasibility Study call (2015). ",

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AU - Patterson, Tim

AU - Savvas, Savvas

AU - Chong, Alex

AU - Law, Ian

AU - Dinsdale, Richard

AU - Esteves, Sandra

N1 - Research was undertaken as part of the IUK funded project “Synthetic Methane: Enabling Renewable Energy Storage by Integrating the Electricity and Gas Networks” (Project No.132006), funded under the Integrated Energy Systems Supply Chains – Feasibility Study call (2015).

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AB - The integration of a biomethanation system within a wastewater treatment plant for conversion of CO2 and H2 to CH4 has been studied. Results indicate that the CO2 could be utilised to produce an additional 13,420 m3 / day of CH4, equivalent to approximately 133,826 kWh of energy. The whole conversion process including electrolysis was found to have an energetic efficiency of 66.2 %. The currently un-optimised biomethanation element of the process had a parasitic load of 19.9 % of produced energy and strategies to reduce this to <5 % are identified. The system could provide strategic benefits such as integrated management of electricity and gas networks, energy storage and maximising the deployment and efficiency of renewable energy assets. However, no policy or financial frameworks exist to attribute value to these increasingly important functions.

KW - Biomethanation

KW - Power to Gas

KW - Power to Methane

KW - Biogas Upgrading

KW - Grid Balancing

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