4.7 Article

Delivering carbon negative electricity, heat and hydrogen with BECCS - Comparing the options

Journal

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 46, Issue 29, Pages 15298-15321

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2021.02.042

Keywords

Bioenergy with carbon capture and storage; BECCS; Biomass-derived hydrogen; Carbon dioxide removal; Negative emissions; Greenhouse gas remval

Funding

  1. Research Council UK (H2FC Supergen flexible fund) [EP/P024807/1]
  2. Research Council UK (MESMERISE-CCS) [EP/M001369/1]
  3. Research Council UK (Opening New Fuels for UK Generation) [EP/M015351/1]
  4. Research Council UK (CCSInSupply) [EP/N024567/1]
  5. Research Council UK (GGR Opt) [NE/P019900/1]
  6. Imperial College London
  7. Hydrogen and Fuel Cells Supergen Hub (H2FC SUPERGEN)

Ask authors/readers for more resources

This study evaluates the design and optimization of supply chain network for three bioenergy conversion pathways and finds that indigenous sources of biomass in the UK can remove a significant amount of CO2 from the atmosphere without the need to import biomass. Regardless of the pathway, Bio-CCS deployment could materially contribute towards meeting a national CO2 removal target and provide a substantial contribution to a national-scale energy system.
Biomass can be converted into a range of different end-products; and when combined with carbon capture and storage (CCS), these processes can provide negative CO2 emissions. Biomass conversion technologies differ in terms of costs, system efficiency and system value, e.g. services provided, market demand and product price. The aim of this study is to comparatively assess a combination of BECCS pathways to identify the applications which offer the most valuable outcome, i.e. maximum CO2 removal at minimum cost, ensuring that resources of sustainable biomass are utilised efficiently. Three bioenergy conversion pathways are evaluated in this study: (i) pulverised biomass-fired power plants which generate electricity (BECCS), (ii) biomass-fuelled combined heat and power plants (BE-CHPCCS) which provide both heat and electricity, and (iii) biomass-derived hydrogen production with CCS (BHCCS). The design and optimisation of the BECCS supply chain network is evaluated using the Modelling and Optimisation of Negative Emissions Technology framework for the UK (MONET-UK), which integrates biogeophysical constraints and a wide range of biomass feedstocks. The results show that indigenous sources of biomass in the UK can remove up to 56 Mt(CO2)/yr from the atmosphere without the need to import biomass. Regardless of the pathway, Bio-CCS deployment could materially contribute towards meeting a national CO2 removal target and provide a substantial contribution to a national-scale energy system. Finally, it was more cost-effective to deploy all three technologies (BECCS, BE-CHP-CCS and BHCCS) in combination rather than individually. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

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