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Integrating CCS in international cooperation and carbon markets under Article 6 of the Paris Agreement

18 January 2023
Policy & Regulation

This work assesses the status of and outlooks for international cooperation under Article 6 of the Paris Agreement and considers how approaches could support the deployment of carbon capture and storage (CCS). It provides an up-to-date look at the Article 6 rules, the types of markets and mechanisms that could evolve, and the units that could be traded. It then considers how Article 6 could apply to CCS through linked emissions trading systems, crediting systems and alternative approaches.

Technical Review

A bibliometric analysis of GHGT abstract submissions

14 June 2023
Industry Insights

This technical review provides an insight into how the focus of research in the field of Carbon Capture, Utilisation and Storage (CCUS) has evolved across a decade, from 2012–2022. It is designed to help understand where the most research has been conducted, and to see where CCUS research is going.

Technical Report

Prospective Integration of Geothermal Energy with Carbon Capture and Storage

23 August 2023
Storage
Utilisation

The aim of the study is to provide a dispassionate review and overview of scenarios where geothermal energy and CO₂ utilisation and storage technologies can be combined for mutual benefit and contribute to Net Zero targets. Sourced from a rich body of literature from global research institutes and some demonstration projects many of the concepts identified have been conceptualised over the past 20 years and are still in the early concept stage. These concepts have been categorised, described and evaluated using qualitative and quantitative methods. And a map based screening exercise useful for initial evaluation of areas suitable for combined synergies has been undertaken.

Technical Review

9th HTSLCN Meeting Report

21 September 2023
Capture
Event Proceedings

The 9th High Temperature Solid Looping Cycles Network (HTSLCN) Meeting took place from 14th to 15th March 2023 at Palazzo Farnese in Piacenza, Italy, hosted by the CLEANKER consortium. 82 attendees enjoyed a two-day programme with a total of 28 presentations, the official closure of the CLEANKER project with a visit to the pilot plant, a relaxing dinner and a guided tour in the museum of Palazzo Farnese about the millennial history of the city of Piacenza and its territory, from the preRoman age to the XX century.

Technical Review

Risk Management Network Meeting Report

29 September 2023
Event Proceedings
Storage

The Risk Management Network meeting was held as an in-person event with a particular focus on the risk of wells (particularly legacy wells) in a CCS project, looking at the topic from basin scale through to detailed characterisation of well materials and monitoring. Attended by over 75 delegates from 15 countries, the two day meeting was held at Heriot-Watt University in Edinburgh, UK. It was kicked off by a welcome reception in the Lyell Centre (home to both BGS and the Institute for GeoEnergy Engineering) and was followed by a field excursion to explore the geological history of Arthur’s Seat in Edinburgh and a tour of a very new distillery located in an old train station within stone’s throw of Holyrood Park.

Technical Report

Techno-Economic Assessment of Electrochemical CO₂ Conversion Technologies

17 October 2023
Costs of CCUS
Utilisation

This study aims to assess the costs and greenhouse gas (GHG) emissions performance of selected electrochemical CO₂ conversion pathways. It applies a learning curve method to project costs up to 2050.

Technical Report

Classification of Total Storage Resources and Storage Coefficients

1 November 2023
Storage

The CO₂ Storage Resources Management System (SRMS) is a classification scheme to quantify, classify and categorise CO₂ storage resources. It comprises ‘total storage resources’, which are understood as maximum (theoretical) storage quantities that could ever be accommodated in the subsurface. Comprising maximum mobile CO₂ in structural/stratigraphic traps, maximum residually trapped CO₂ in other parts of the formation, and maximum dissolution potential in remaining formation water. ‘Storable quantities’ are understood as accessible from one or several current or future projects. It is the sum of capacity, contingent and prospective resources. The concept of ‘storage coefficient’ ‘E’ is the ratio of the subsurface volume of CO₂ storable quantities to either the total storage resources or the pore volume. The calculation is arguably complicated as E is impacted by lithological heterogeneity, trapping structures, boundary conditions, injection rates, well spacing, fluid properties etc. Due to its complexity, there is much controversy on how to estimate E, with some arguing it should not be used at all and that reservoir simulation is a better path. However, estimates for E are used in most regional mapping studies. This study explores storage resource classification schemes and their evolution in understanding, the calculation of storage resources and the storage co-efficient. This is explored in terms of calculating E for CO₂ storage sites, through flow modelling and analytical solutions.

Technical Review

7th Cost Network Proceedings

1 November 2023
Costs of CCUS
Event Proceedings

The 7th edition of the IEAGHG CCS Cost Network Workshop was hosted at the University of Groningen, Netherlands, on 12-13 April 2023. The purpose of the workshop was to share and discuss the most current information on the costs of carbon capture and storage (CCS) in various applications, as well as the outlook for future CCS costs and deployment. For the first time, this workshop also included a session on the direct capture of CO₂ from the atmosphere. The workshop also sought to identify other key issues or topics related to CCS costs that merit further discussion and study.

Technical Report

Components of CCS Infrastructure - Interim CO₂ Holding Options

27 November 2023
Storage
Transport

This work, undertaken on behalf of IEAGHG by TNO and SINTEF, provides an overview of temporary / interim CO₂ storage, or ‘holding’, options (also called buffers) and investigates the role of buffer storage and its potential to create flexible and robust carbon capture and storage (CCS) chains. The report looks at current and emerging buffer technologies, conducts simulations to demonstrate the temporary storage required for given flow-rate scenarios and discusses the impact of buffer capacity on transport costs. In the report, the storage requested in the chain for normal operation is presented as " temporary storage" and storage to give buffer capacity is presented as " buffer storage". This report has focussed on buffering at the emitter site. The results of this study will benefit CO₂ storage site project developers, operators, financiers and regulators.

Technical Report

International Standards and Testing for Novel Carbonaceous Building Materials

1 December 2023
Policy & Regulation
Utilisation

Over 4 billion tonnes of cement are produced each year, equating to approximately 8% of global anthropogenic CO₂ emissions, and this industry will continue to grow with the expansion of the built environment at a time that emissions need to be reduced. The utilisation or reduction of CO₂ within cement, concrete and building materials could be a valuable way to contribute to emissions reductions in the sector , but there are several barriers, including the current state of standards, regulations and policies. This study will provide useful information for the technical and research community, the CCUS industry, the construction industry, and policymakers, providing an unbiased and non-prescriptive evaluation of international standards and testing relevant to novel carbonaceous building materials to address some of those barriers. The market potential for CO₂ utilisation processes in the construction industry is also investigated, and the methods for certifying and measuring embodied carbon content of carbonated building materials is evaluated and the challenges therein.

Technical Review

Monitoring Network Meeting Report

1 December 2023
Event Proceedings
Storage

The IEAGHG Monitoring Network aims to assess new technologies and techniques in the monitoring of CO₂ storage, determine the limitations, accuracy and applicability of monitoring techniques, disseminate information from research and pilot storage projects around the world, develop extensive monitoring guidelines for the different sub-categories of geological storage; oil and gas fields, unmineable coal seams, and saline aquifers covering the differing conditions and reservoir properties encountered globally as well as to engage with relevant regulatory bodies.

Technical Review

6th International Workshop on Offshore Geologic CO₂ Storage

1 December 2023
Event Proceedings
Storage

The 6th International Workshop on Offshore Geologic CO₂ Storage was held in Aberdeen on 13-14 September. Organised with the University of Texas and hosted by the University of Aberdeen. The loca on was very appropriate as we were co-hosted and sponsored by Storegga who leads the Acorn project nearby in Scotland. This project had been recently announced by the UK government as a Track 2 Cluster project. This 6th workshop had 190 delegates (60 in-person and 130 virtual) from 35 countries, with a good mix of industry, researchers and regulators.

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