Technical/economic/environmental analysis of biogas utilisation

J. D. Murphy, E. McKeogh and G. Kiely

Applied Energy, 2004, vol. 77, issue 4, 407-427

Abstract: Biogas may be utilised for Combined Heat and Power (CHP) production or for transport fuel production (CH4-enriched biogas). When used to produce transport fuel either electricity is imported to power the plant or some of the biogas is used in a small CHP unit to meet electricity demand on site. The potential revenue from CH4-enriched biogas when replacing petrol is higher than that for replacing diesel (Irish prices). Transport fuel production when replacing petrol requires the least gate fee. The production of greenhouse-gas is generated with cognisance of greenhouse-gas production with the scheme not in place; landfill of the Organic Fraction of Municipal Solid Waste (OFMSW) (20% of biomass) with and without combustion of landfill gas is investigated. The transport scenario with importation of brown electricity generates more greenhouse-gas than petrol or diesel, when the [`]do-nothing' case involves combustion of landfill gas. The preferred solution involves transport fuel production with the production of CHP to meet electricity demand on site. A shortfall of this solution is that only 53% of biogas is available for export.

Keywords: Biogas; CHP; CH4-enriched; biogas; OFMSW; Pig; slurry; Gate; fee; Greenhouse-gas; Sustainable (search for similar items in EconPapers)
Date: 2004
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Citations: View citations in EconPapers (50)

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