scholarly journals Carbon Allocation in Multi-Product Steel Mills That Co‐process Biogenic and Fossil Feedstocks and Adopt Carbon Capture Utilization and Storage Technologies

2020 ◽  
Vol 2 ◽  
Author(s):  
Maximilian Biermann ◽  
Rubén M. Montañés ◽  
Fredrik Normann ◽  
Filip Johnsson
Keyword(s):  
Blast Furnace ◽  
Carbon Capture ◽  
Carbon Allocation ◽  
Low Carbon ◽  
Steel Mill ◽  
Electricity Grid ◽  
Blast Furnace Gas ◽  
Near Term ◽  
Storage Technologies ◽  
And Storage

This work investigates the effects of carbon allocation on the emission intensities of low-carbon products cogenerated in facilities that co‐process biogenic and fossil feedstocks and apply the carbon capture utilization and storage technology. Thus, these plants simultaneously sequester CO2 and synthesize fuels or chemicals. We consider an integrated steel mill that injects biomass into the blast furnace, captures CO2 for storage, and ferments CO into ethanol from the blast furnace gas. We examine two schemes to allocate the CO2 emissions avoided [due to the renewable feedstock share (biomass) and CO2 capture and storage (CCS)] to the products of steel, ethanol, and electricity (generated through the combustion of steel mill waste gases): 1) allocation by (carbon) mass, which represents actual carbon flows, and 2) a free-choice attribution that maximizes the renewable content allocated to electricity and ethanol. With respect to the chosen assumptions on process performance and heat integration, we find that allocation by mass favors steel and is unlikely to yield an ethanol product that fulfills the Renewable Energy Directive (RED) biofuel criterion (65% emission reduction relative to a fossil comparator), even when using renewable electricity and applying CCS to the blast furnace gas prior to CO conversion into ethanol and electricity. In contrast, attribution fulfills the criterion and yields bioethanol for electricity grid intensities <180 gCO2/kWhel without CCS and yields bioethanol for grid intensities up to 800 gCO2/kWhel with CCS. The overall emissions savings are up to 27 and 47% in the near-term and long-term future, respectively. The choice of the allocation scheme greatly affects the emissions intensities of cogenerated products. Thus, the set of valid allocation schemes determines the extent of flexibility that manufacturers have in producing low-carbon products, which is relevant for industries whose product target sectors that value emissions differently. We recommend that policymakers consider the emerging relevance of co‐processing in nonrefining facilities. Provided there is no double-accounting of emissions, policies should contain a reasonable degree of freedom in the allocation of emissions savings to low-carbon products, so as to promote the sale of these savings, thereby making investments in mitigation technologies more attractive to stakeholders.

scholarly journals Social Acceptance of Carbon Capture and Storage (CCS) from Industrial Applications

2021 ◽  
Vol 13 (21) ◽  
pp. 12278
Author(s):  
Katja Witte
Keyword(s):  
Carbon Capture ◽  
Large Scale ◽  
Social Acceptance ◽  
Carbon Capture And Storage ◽  
Industrial Sector ◽  
Industrial Applications ◽  
Low Carbon ◽  
Reduction Of Co2 ◽  
Storage Technologies ◽  
And Storage

To limit global warming, the use of carbon capture and storage technologies (CCS) is considered to be of major importance. In addition to the technical–economic, ecological and political aspects, the question of social acceptance is a decisive factor for the implementation of such low-carbon technologies. This study is the first literature review addressing the acceptance of industrial CCS (iCCS). In contrast to electricity generation, the technical options for large-scale reduction of CO2 emissions in the energy-intensive industry sector are not sufficient to achieve the targeted GHG neutrality in the industrial sector without the use of CCS. Therefore, it will be crucial to determine which factors influence the acceptance of iCCS and how these findings can be used for policy and industry decision-making processes. The results show that there has been limited research on the acceptance of iCCS. In addition, the study highlights some important differences between the acceptance of iCCS and CCS. Due to the technical diversity of future iCCS applications, future acceptance research must be able to better address the complexity of the research subject.

scholarly journals The need for a Net Zero Principles Framework to support public policy at local, regional and national levels

2020 ◽  
Vol 35 (7) ◽  
pp. 627-634
Author(s):  
Karen Turner ◽  
Antonios Katris ◽  
Julia Race
Keyword(s):  
Public Policy ◽  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Economic Returns ◽  
Net Zero ◽  
Local Areas ◽  
Zero Carbon ◽  
Near Term ◽  
And Storage ◽  
Do So

Many nations have committed to midcentury net zero carbon emissions targets in line with the 2015 Paris Agreement. These require systemic transition in how people live and do business in different local areas and regions within nations. Indeed, in recognition of the climate challenge, many regional and city authorities have set their own net zero targets. What is missing is a grounded principles framework to support what will inevitably be a range of broader public policy actions, which must in turn consider pathways that are not only technically, but economically, socially and politically feasible. Here, we attempt to stimulate discussion on this issue. We do so by making an initial proposition around a set of generic questions that should challenge any decarbonisation action, using the example of carbon capture and storage to illustrate the importance and complexity of ensuring feasibility of actions in a political economy arena. We argue that this gives rise to five fundamental ‘Net Zero Principles’ around understanding of who really pays and gains, identifying pathways that deliver growing and equitable prosperity, some of which can deliver near-term economic returns, while avoiding outcomes that simply involve ‘off-shoring’ of emissions, jobs and gross domestic product.

scholarly journals Life Cycle Assessment of Direct Air Carbon Capture and Storage with Low-Carbon Energy Sources

2021 ◽  
Author(s):  
Tom Terlouw ◽  
Karin Treyer ◽  
christian bauer ◽  
Marco Mazzotti
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Carbon Capture ◽  
Large Scale ◽  
Carbon Capture And Storage ◽  
Low Carbon ◽  
Solid Sorbent ◽  
Low Carbon Energy ◽  
And Storage ◽  
Limited Scope

Prospective energy scenarios usually rely on Carbon Dioxide Removal (CDR) technologies to achieve the climate goals of the Paris Agreement. CDR technologies aim at removing CO2 from the atmosphere in a permanent way. However, the implementation of CDR technologies typically comes along with unintended environmental side-effects such as land transformation or water consumption. These need to be quantified before large-scale implementation of any CDR option by means of Life Cycle Assessment (LCA). Direct Air Carbon Capture and Storage (DACCS) is considered to be among the CDR technologies closest to large-scale implementation, since first pilot and demonstration units have been installed and interactions with the environment are less complex than for biomass related CDR options. However, only very few LCA studies - with limited scope - have been conducted so far to determine the overall life-cycle environmental performance of DACCS. We provide a comprehensive LCA of different low temperature DACCS configurations - pertaining to solid sorbent-based technology - including a global and prospective analysis.

scholarly journals Deploying Low Carbon Public Procurement to Accelerate Carbon Removal

2021 ◽  
Vol 3 ◽  
Author(s):  
Eric Dunford ◽  
Robert Niven ◽  
Christopher Neidl
Keyword(s):  
Carbon Dioxide ◽  
Carbon Capture ◽  
Large Scale ◽  
Carbon Materials ◽  
Public Procurement ◽  
Emerging Technology ◽  
Regulatory Environment ◽  
Low Carbon ◽  
Procurement Strategies ◽  
And Storage

Carbon dioxide removal (CDR) will be required to keep global temperature rise below 2°C based on IPCC models. Greater adoption of carbon capture utilization and storage (CCUS) technologies will drive demand for CDR. Public procurement of low carbon materials is a powerful and under-utilized tool for accelerating the development and of CCUS through a targeted and well-regulated approach. The policy environment is nascent and presents significant barriers for scaling and guiding emerging technology solutions. The concrete sector has unique attributes that make it ideally suited for large-scale low-carbon public procurement strategies. This sector offers immediate opportunities to study the efficacy of a supportive policy and regulatory environment in driving the growth of CCUS solutions.

scholarly journals Pathways for Low-Carbon Transition of the Steel Industry—A Swedish Case Study

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3840
Author(s):  
Alla Toktarova ◽  
Ida Karlsson ◽  
Johan Rootzén ◽  
Lisa Göransson ◽  
Mikael Odenberger ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Co2 Emissions ◽  
Steel Industry ◽  
Carbon Capture ◽  
Direct Reduction ◽  
Carbon Capture And Storage ◽  
Steel Production ◽  
Mitigation Measures ◽  
Production Plant ◽  
Low Carbon

The concept of techno-economic pathways is used to investigate the potential implementation of CO2 abatement measures over time towards zero-emission steelmaking in Sweden. The following mitigation measures are investigated and combined in three pathways: top gas recycling blast furnace (TGRBF); carbon capture and storage (CCS); substitution of pulverized coal injection (PCI) with biomass; hydrogen direct reduction of iron ore (H-DR); and electric arc furnace (EAF), where fossil fuels are replaced with biomass. The results show that CCS in combination with biomass substitution in the blast furnace and a replacement primary steel production plant with EAF with biomass (Pathway 1) yield CO2 emission reductions of 83% in 2045 compared to CO2 emissions with current steel process configurations. Electrification of the primary steel production in terms of H-DR/EAF process (Pathway 2), could result in almost fossil-free steel production, and Sweden could achieve a 10% reduction in total CO2 emissions. Finally, (Pathway 3) we show that increased production of hot briquetted iron pellets (HBI), could lead to decarbonization of the steel industry outside Sweden, assuming that the exported HBI will be converted via EAF and the receiving country has a decarbonized power sector.

scholarly journals Special Issue “Climate Change, Carbon Capture, Storage and CO2 Mineralisation Technologies”

2020 ◽  
Vol 10 (21) ◽  
pp. 7463
Author(s):  
Nikolaos Koukouzas ◽  
Pavlos Tyrologou ◽  
Petros Koutsovitis
Keyword(s):  
Climate Change ◽  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Special Issue ◽  
Scientific Papers ◽  
Storage Technologies ◽  
And Storage ◽  
Carbon Capture Storage

This Special Issue presents sixteen scientific papers that explore the application of carbon capture and storage technologies, mitigating the effects of climate change [...]

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