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Environmental impact assessment of carbon capture and sequestration: General overview
Barros, N.; Oliveira, G.M.; Lemos de Sousa, M.J. (2012). Environmental impact assessment of carbon capture and sequestration: General overview, in: IAIA12 Conference Proceedings. Energy future: The role of impact assessment. 32nd Annual Meeting of the International Association for Impact Assessment, 27 May - 1 June 2012, Porto - Portugal. pp. 1-6
In: (2012). IAIA12 Conference Proceedings. Energy future: The role of impact assessment. 32nd Annual Meeting of the International Association for Impact Assessment, 27 May - 1 June 2012, Porto - Portugal. International Association for Impact Assessment: Fargo.
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| Beschikbaar in | Auteurs |
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Documenttype: Congresbijdrage
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| Author keywords |
CCS; EIA; CO2 storage; risks |
| Auteurs | | Top |
- Barros, N.
- Oliveira, G.M.
- Lemos de Sousa, M.J.
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| Abstract |
World primary energy supply is, still, strongly dependent on fossil fuels and combustion. The contribution of renewable sources of energy in the energy mix is continuously increasing, under strong technological development and wide geographical dissemination; however, energy demand in the world is increasing faster due to population growth and upgrading living conditions expectations. According to the majority of world outlook reports [1, 2], fossil fuels are expected to continue to secure the majority of the world primary energy supply. Fossil fuels combustion is responsible for large amounts of CO2 and other greenhouse gases emissions. CO2 capture and underground storage (CCS) technologies are considered to represent an effective mean to dramatically reduce CO2 emissions from large stationary sources such as power plants and other strongly dependent fossil fuel industries (cement and steel manufacturers) [3]. However, as all kind of technology or even human intervention in nature, CCS processes may involve undesirable effects on the environment. Implementation of CCS projects and activities regarding storage of CO2 quantities above 105 ton are regulated by the CCS Directive 2009/31/EC [4] and also by the EIA Directive 2011/92/EU [5]. The latter replaces the former EIA Directive 85/337/EEC specifically amended in 2009 to cover capture and transport of CO2 streams for the purposes of geological storage as well as storage sites. This paper presents a general overview of the EIA of the CCS technologies, with a particular focus over legal framework and the possible environmental impacts on CO2 storage sites, considering two reservoirs types: abandoned or unmineable coal seams and deep saline aquifers. |
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