Grasham, O orcid.org/0000-0001-7796-5300, Dupont, V, Cockerill, T et al. (1 more author) (2022) Ammonia and Biogas from Anaerobic and Sewage Digestion for Novel Heat, Power and Transport Applications—A Techno-Economic and GHG Emissions Study for the United Kingdom. Energies, 15 (6). 2174. ISSN 1996-1073
Abstract
Anaerobic digestion (AD) and sewage sludge digestion (SD) plants generate significant quantities of ammoniacal nitrogen in their digestate liquor. This article assesses the economic viability and CO2 abatement opportunity from the utilisation of this ammonia under three scenarios and proposes their potential for uptake in the United Kingdom. Each state-of-the-art process route recovers ammonia and uses it alongside AD-produced biomethane for three different end goals: (1) the production of H2 as a bus transport fuel, (2) production of H2 for injection to the gas grid and (3) generation of heat and power via solid oxide fuel cell technology. A rigorous assessment of UK anaerobic and sewage digestion facilities revealed the production of H2 as a bus fleet transport fuel scenario as the most attractive option, with 19 SD and 42 AD existing plants of suitable scale for process implementation. This is compared to 3 SD/1 AD and 13 SD/23 AD existing plants applicable with the aim of grid injection and SOFC processing, respectively. GHG emission analysis found that new plants using the NWaste2H2 technology could enable GHG reductions of up to 4.3 and 3.6 kg CO2e for each kg bio-CH4 supplied as feedstock for UK SD and AD plants, respectively.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland.This article is an open access article distributed under the terms and conditions of the Creative Commons AtTribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Keywords: | anaerobic digestion; sewage digestion; wastewater treatment plants; hydrogen; fuel cells; techno-economics; ammonia; nutrient recovery |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/R00076X/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 17 Mar 2022 16:42 |
Last Modified: | 25 Jun 2023 22:56 |
Status: | Published |
Publisher: | MDPI |
Identification Number: | 10.3390/en15062174 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:184765 |