Key findings and recommendations from the IMPACTS project

Brunsvold, Amy L.; Jakobsen, Jana P.; Mazzetti, Marit J.; Skaugen, Geir; Hammer, Morten; Eickhoff, Charles; Neele, Filip

doi:10.1016/j.ijggc.2016.07.003

Cited by 18 publications

(10 citation statements)

References 12 publications

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“…Although these impurities may only be present in small amounts, several studies have shown that the potential associated impurities can have a significant impact on design and cost of CO2 conditioning, transport, and storage [116,117,134,135]. However, this impact will however depend on the types and levels of impurities present in the CO2 stream and thus the combination of industrial plant, CO2 capture technology considered and targeted CO2 specifications for storage or use [136]. Finally, it is worth noting that there are still some knowledge gaps in term of impact of multicomponent impurities on underlying aspects influencing costs of such systems: thermodynamic behaviour, physical properties, corrosion, etc.…”

Section: Flue-gas Treatment Requirementsmentioning

confidence: 99%

Towards improved guidelines for cost evaluation of carbon capture and storage

Roussanaly

Rubin

Spek

et al. 2021

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Understanding the costs of carbon capture and storage (CCS) is essential to understand the role for and potential of CCS technology in addressing climate change, for guidance in research activities aiming to reduce the cost and improve the performance of promising new CCS technologies in different applications. In practice, however, there are many challenges in establishing reliable cost estimates for CCS technologies. To help identify and overcome these challenges, a group of experts from industry, government, academia and other organisations came together in 2011 to form the CCS Cost Network (which came under the aegis of IEAGHG in 2017 [1]). Following discussions at the first CCS Cost Network workshop [1], several members of the workshop steering committee formed a task force to focus on the basic structure of CCS cost estimates. That effort produced a White Paper entitled, "Toward a Common Method of Cost Estimation for CCS at Fossil Fuel Power Plants" [2]. This white paper aimed at overcoming identified pitfalls in CCS cost evaluations for fossil fuel power plants arising from the different methodologies used by various organisations. Towards this aim, the white paper established a common costing methodology and nomenclature, as well as guidelines for CCS cost reporting to improve the clarity and consistency of cost estimates for greenhouse gas mitigation measures. While that work laid the foundation for establishing a common costing methodology for CCS, several important cost issues still remained to be addressed. Building on that earlier work and the interest from additional organisations, the current white paper is an effort to draw up a complementary set of CCS costing guidelines in three complementary areas where further guidelines and better practices are needed, and where efforts are underway to address those topics. This effort is a collaboration among researchers at several industrial research institutes (Electric

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Section: Flue-gas Treatment Requirementsmentioning

confidence: 99%

Towards improved guidelines for cost evaluation of carbon capture and storage

Roussanaly

Rubin

Spek

et al. 2021

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“…Since both the presence of impurities in the CO 2 stream after capture and possible purity constraints have been shown to have an impact on CO 2 transport design and costs [20,21,43], it is important to evaluate whether this also has an effect on the comparison of the 7 and 15 barg shipping options. In the case of transport by ship, impurities can impact both the CO 2 conditioning and transport of a given option through the energy requirements and the design of the liquefaction process, the density of the resulting liquid CO 2 , the energy requirement and design of the reconditioning process, and possibly material selection if impurities are corrosive.…”

Section: Impact Of Impurities and Purity Constraintsmentioning

confidence: 99%

“…Since the presence of impurities in the CO 2 stream after capture, and possible purity constraints after liquefaction, have been shown to have an impact on CO 2 transport design and costs [20,21,43], five scenarios (5 to 9) seek to understand the impact of these effects on the comparison between shipping pressures. The first three scenarios (5 to 7) investigate the impact of different types and levels of impurities presented in Table 1.…”

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confidence: 99%

At what Pressure Shall CO2 Be Transported by Ship? An in-Depth Cost Comparison of 7 and 15 Barg Shipping

et al. 2021

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The pipeline has historically been the preferred means to transport CO2 due to its low cost for short distances and opportunities for economies of scale. However, interest in vessel-based transport of CO2 is growing. While most of the literature has assumed that CO2 shipping would take place at low pressure (at 7 barg and −46 °C), the issue of identifying best transport conditions, in terms of pressure, temperature, and gas composition, is becoming more relevant as ship-based carbon capture and storage chains move towards implementation. This study focuses on an in-depth comparison of the two primary and relevant transport pressures, 7 and 15 barg, for annual volumes up to 20 MtCO2/year and transport distances up to 2000 km. We also address the impact of a number of key factors on optimal transport conditions, including (a) transport between harbours versus transport to an offshore site, (b) CO2 pressure prior to conditioning, (c) the presence of impurities and of purity constraints, and (d) maximum feasible ship capacities for the 7 and 15 barg options. Overall, we have found that 7 barg shipping is the most cost-efficient option for the combinations of distance and annual volume where transport by ship is the cost-optimal means of transport. Furthermore, 7 barg shipping can enable significant cost reductions (beyond 30%) compared to 15 barg shipping for a wide range of annual volume capacities.

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“…Thus, the CO 2 stream is transported as a dense-phase fluid. Chemical reactions between different impurities within the CO 2 streams, in particular at mixing, were not considered following [39].…”

Section: Network Analysis Toolmentioning

confidence: 99%

Potential Dynamics of CO2 Stream Composition and Mass Flow Rates in CCS Clusters

et al. 2020

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Temporal variations in CO2 stream composition and mass flow rates may occur in a CO2 transport network, as well as further downstream when CO2 streams of different compositions and temporally variable mass flow rates are fed in. To assess the potential impacts of such variations on CO2 transport, injection, and storage, their characteristics must be known. We investigated variation characteristics in a scenario of a regional CO2 emitter cluster of seven fossil-fired power plants and four industrial plants that feed captured CO2 streams into a pipeline network. Variations of CO2 stream composition and mass flow rates in the pipelines were simulated using a network analysis tool. In addition, the potential effects of changes in the energy mix on resulting mass flow rates and CO2 stream compositions were investigated for two energy mix scenarios that consider higher shares of renewable energy sources or a replacement of lignite by hard coal and natural gas. While resulting maximum mass flow rates in the trunk line were similar in all considered scenarios, minimum flow rates and pipeline capacity utilisation differed substantially between them. Variations in CO2 stream composition followed the power plants’ operational load patterns resulting e.g., in stronger composition variations in case of higher renewable energy production.

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Key findings and recommendations from the IMPACTS project

Cited by 18 publications

References 12 publications

Towards improved guidelines for cost evaluation of carbon capture and storage

Towards improved guidelines for cost evaluation of carbon capture and storage

At what Pressure Shall CO2 Be Transported by Ship? An in-Depth Cost Comparison of 7 and 15 Barg Shipping

Potential Dynamics of CO2 Stream Composition and Mass Flow Rates in CCS Clusters

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