A model of carbon capture and storage with demonstration of global warming potential and fossil fuel resource use efficiency
Notice bibliographique
Résumé
Abstract Increasing greenhouse gas concentration in the atmosphere influences global climate change even though the level of impact is still unclear. Carbon dioxide capture and storage (CCS) is increasingly seen as an important component of broadly based greenhouse gases reduction measures, such as the use of renewable energy sources or nuclear energy. Although the other greenhouse gases are more potent, the sheer volume of CO2 makes it dominant in term of its effect in the atmosphere. The International Energy Agency (IEA) uses 19% of emission reduction requirements as the target for CCS. Although a fossil fuel power plant is a large source of CO2 emissions, with CO2 capture these emissions can be reduced substantially. However, it must be recognized that CO2 capture significantly decreases power plant efficiency; therefore, extra resources (for example, coal in the case of a coal-fired power plant) are needed to compensate for the lost capacity. Extensive application of CO2 capture will require the construction of replacement power plants to compensate for the loss of electricity to the grid. CO−2 transport and storage also contribute to an increase in emissions and waste generation, as well as an increase in energy and other resource consumption..To understand the implications, CCS activities should be studied from a full life cycle perspective. The objectives of this study is to conduct life cycle assessment of combining two energy systems, coal-fired power plant and CO2 EOR, as a new tool to evaluate environmental LCA of CCS with CO2 EOR option. In addition, this is an attractive tool for decision making of any CCS project. Various equations are applied into the GaBi software (a LCA software) to model this tool. Life cycle assessment (LCA) is the primary approach used in this study to create the tool for CCS environmental evaluation. The Boundary Dam Power Station (BDPS) and the Weyburn-Midale CO2 Project in Saskatchewan, Canada, are studied and modified as the case scenarios to find the potential and encourage the appllications of CCS on both energy systems. Energy, using GJ as one of its unit, is considerably the product of this combining two energy resources as one system. The application of this tool effectively demonstrates the result of CCS system as life cycle impact assessment (LCIA) on carbon footprint and resource depletion. Other environmental impacts can, therefore, be analyzed by this tool as well. Three processes; coal mining, power plant including CO2 capture unit operation and crude oil usage, must be presented when the global warming potential (GWP) of CCS is performed. In addition, the result demonstrates the GWP reduction is directly related to fossil fuel resource use efficiency. This means the lower GWP of CCS, the lower efficiency of fossil fuel resource use as well.
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Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».