CCS is a highly praised technology that allegedly allows humankind to go on living life the way they have always done and continue their business as usual. But is it that what we need? CCS might help overcome the short-term problems of society but never can it be a solution for all CO2 related questions. It is a dead end street.
Earth as only a certain capacity of letting CO2 sink in through sequestration, i.e. absorption through afforestation, peat production, wetland restoration, ocean related absorption or a change in agricultural methods. Apart from that, then, there is CCS. Unfortunately, CCS is not on scale yet and it implies huge capital costs for installation at a time when no one knows yet whether or not it is a viable option at all. Additionally, the emission of greenhouse gases includes not only the emission of CO2 but also a range of harmful short-term pollutants (e.g. sulphates, methane) that cannot be captured by CCS methods but that still have a massive influence on our climate.
What is needed is a consequent and fundamental change of behaviour and not a change of technology that allows us to go on as before. As recent history shows, the implementation of taxes or restrictive regulations or the implementation of ETS have not had a major effect on the behaviour of countries. The money invested in research for CCS is better invested in finding alternatives, in funding the implementation of an integrated grid, to start with in Europe and then gradually expanding it, with the further development of techniques to possibly even span oceans and connect the American or African continent to the European grid to guarantee energy security through renewable energy resources, which are already in the phase of development where they can be produced at scale and are competitive with the implementation of conventional energy sources.
Table of Contents
1. Introduction
2. CCS – what is it / Technology / how does it work?
2.1 Capture
2.2 Transport of CO2
2.3 Onshore storage
2.4 Offshore storage
2.5 Regulations
2.6 Costs
3. CCS – the game changing technology?
4. CCS – the game cheating technology?
5. Conclusion
Objectives & Core Topics
The objective of this essay is to critically evaluate Carbon Capture and Storage (CCS) as a strategy for climate change mitigation, questioning whether it represents a transformative "game changing" technology or merely a "game cheating" delay tactic that avoids necessary fundamental behavioral shifts.
- Technical processes of carbon capture, transport, and storage.
- Economic implications and the role of regulatory frameworks.
- The debate between short-term mitigation versus long-term sustainability.
- Potential environmental risks associated with underground CO2 injection.
- The necessity of transitioning to renewable energy infrastructures.
Excerpt from the book
Capture
There are three main methods of capturing carbon: post-combustion, pre-combustion and oxyfuel. The advantage of physical post-combustion capture is that existing power plants can be retrofitted to capture CO2 as the process takes place only after the burning of fossil fuels. The concentration of CO2 in the flue gases resulting from the burning process, however, is very low (5% in gas burning resultants, 10-15% for coal). Additionally, the pressure of those flue gases is close to atmospheric pressure. To be able to capture resulting CO2 the flue gas has to be pressurised. This process adds high additional costs to the capital costs required by retrofitting power plants. An alternative to physical post-combustion capture is the chemical absorption of CO2, which is done by injecting amines into the flue air to capture CO2. The disadvantage is that amines degrade by use and require higher energy input in their reuse.
Both physical and chemical absorption is possible in the pre-combustion technology. It involves the production of synthesis gas, i.e. CO2 turns into H2 and CO2, and the resulting hydrogen can be burnt to run power turbines through integrated gasification combined cycles (IGCC). The remaining CO2 is liquefied and transported.
The third method, oxyfuel, requires the separation of oxygen from air. Oxyfuel combustion uses pure oxygen to burn fuels. It involves high costs for the separation of oxygen from air. The separation of CO2 takes place in the same way as in the pre-combustion method.
Summary of Chapters
Introduction: The essay introduces the dual perspective of CCS as either a revolutionary solution or a problematic delay tactic, outlining the scope of its technical, economic, and long-term viability analysis.
CCS – what is it / Technology / how does it work?: This chapter details the technical aspects of CCS, covering capture methods, transport challenges, storage solutions, regulatory hurdles, and the financial costs involved.
CCS – the game changing technology?: This section explores the potential benefits of CCS as a short-term bridging technology that can mitigate emissions while energy transitions are underway.
CCS – the game cheating technology?: The chapter shifts focus to the risks of CCS, including geological instability, potential leaks, and the threat to subterranean ecosystems.
Conclusion: The author concludes that CCS is a "dead-end street" that distracts from the required systemic changes and recommends prioritizing investment in renewable energy grids instead.
Keywords
Carbon Capture and Storage, CCS, Climate Change Mitigation, Greenhouse Gases, GHG, Fossil Fuels, Energy Technology, Sustainability, CO2 Injection, Renewable Energy, Environmental Policy, Carbon Tax, Sequestration, Global Warming, Energy Grid.
Frequently Asked Questions
What is the primary focus of this paper?
The paper examines the viability of Carbon Capture and Storage (CCS) as a strategy to combat global warming, questioning its role as a long-term solution versus a temporary fix.
What are the core thematic areas discussed?
The study covers technical capture methods, transportation and storage logistics, economic costs, regulatory uncertainties, and the environmental risks of underground sequestration.
What is the central research question?
The essay explores whether CCS should be classified as a "game changing" technology that facilitates climate mitigation or a "game cheating" technology that enables the continuation of harmful fossil fuel usage.
Which scientific methodologies are utilized?
The research is based on a synthesis of existing literature, policy analysis, and technical reports from organizations such as the IEA and IPCC regarding energy performance and carbon storage.
What topics are covered in the main body?
The main body breaks down the mechanics of capture (post/pre-combustion, oxyfuel), storage techniques (onshore/offshore), costs, and the critical socio-political debate surrounding these implementations.
Which keywords best characterize this work?
Key terms include Carbon Capture and Storage, Climate Change Mitigation, Fossil Fuels, CO2 Injection, Energy Policy, and Sustainability.
What risks does the author associate with CCS storage?
The author highlights risks such as seismic activity (earthquakes), cap rock failure, leakage of CO2 into the atmosphere, and negative impacts on subterranean microorganisms.
Why does the author argue that CCS is a "dead-end street"?
It is argued that CCS is not a sustainable long-term solution, as it fails to address the root cause of climate change and potentially enables the continued dependence on non-renewable energy sources.
- Arbeit zitieren
- Cornelia Rottenmoser (Autor:in), 2012, Carbon Capture and Storage (CCS). Is CSS the game changing energy technology of the early 21st century?, München, GRIN Verlag, https://www.grin.com/document/276285
