Luisa Shelenko, Martin Brown, GL Noble Denton, UK
This paper presents a techno-economic analysis of the gas processing requirements for the upgrading of biogas for suitability of injection into the natural gas grid.
Injection of biogas into the natural gas grid is not currently occurring in the UK, and currently the biogas production facilities are using the gas in engines to generate electricity directly. Grid injection of biogas, often termed “renewable gas”, could make a significant contribution to the UK’s renewable energy and carbon emission reduction targets by enabling renewable heat to be used directly in UK homes.
It is recognised that biogas production, clean-up, measurement and monitoring to ensure compliance with any HSE issues for gas grids all comes at a cost but with the right support and incentives, renewable gas could meet a significant proportion of the UK residential gas demand.
This paper provides a high-level techno-economic comparison of the different biogas clean-up technologies and reviews the National Grid / United Utilities Davyhulme waste water biogas facility in Manchester which is aiming to design a demonstration project to inject biogas into the natural gas grid.
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