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britannica.com
article
https://www.britannica.com/science/geoengineering/Carbon-removal-proposals
The carbon-removal approach would extract CO2 from other gases in the atmosphere by changing it into other forms of carbon (such as carbonate) through photosynthesis or artificial “scrubbing.” This separated carbon then would be either sequestered in biomass at the surface or transported away for storage in the ocean or underground. These include carbon burial, ocean fertilization, biochar production, and scrubbing towers or “artificial trees.”. Carbon burial, more commonly known as carbon capture, utilization, and storage (CCUS), involves the pumping of pressurized CO2 into suitable geological structures (that is, with gas-tight upper layers to cap the buried carbon) deep underground or in the deep ocean (*see* carbon sequestration). The carbon-burial process could also make use of carbon dioxide captured from the atmosphere using scrubbers (*see below* Scrubbers and artificial trees). Direct air captureCollector containers for capturing carbon dioxide from the atmosphere at the Orca plant in Hellisheiði, Iceland. Another form of carbon capture, called direct air capture (DAC), would involve the use of scrubbing towers and so-called artificial trees.
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nae.edu
research
https://www.nae.edu/300509/Engineering-the-Sequestration-of-Carbon
From a technological perspective, the oil and gas industry has the tools and expertise to implement and adopt carbon capture, utilization, and storage projects and contribute to a sustainable future. The engineering of CO2 sequestration itself requires three main domains: (1) separation technologies, (2) transportation and midstream operations, and (3) broader subsurface engineering to identify storage sinks and design efficient systems to safely store CO2 underground. Similar advances in membrane technologies would reduce the cost of CO2 capture, especially around gas streams with low CO2 concentrations. Research and development efforts should focus on developing efficient and low-cost capture technologies covering the whole spectrum to enable large scale CCUS developments. While CO2 capture has been applied to several small power plants, there have been no large-scale applications at power plants, which are the major sources of current and projected CO2 emissions. Although liquefied gas can also be transported by rail and road tankers, these options are unlikely to be considered attractive for large-scale CO2 capture and storage projects (IPCC 2005).
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wri.org
article
https://www.wri.org/insights/6-ways-remove-carbon-pollution-sky
Carbon removal strategies include familiar approaches like growing trees as well as more novel technologies like direct air capture, which scrubs CO2 from the air after which it can be sequestered underground. **The latest** **climate model scenarios** **show that in addition to substantial and rapid emissions reductions, large-scale carbon removal will be needed to keep temperature rise to 1.5 degrees C.** The amount of carbon removal ultimately needed will depend on how quickly we reduce emissions in the near term as well as the magnitude and duration of any increase above 1.5 degrees C, known as overshoot. Some management approaches that can increase carbon removal by trees and forests include:. Cost estimates for DAC with sequestration vary: voluntary purchases of carbon removal credits from direct air capture range from $100 to more than $2,000 per metric ton of CO2 depending on the technology, energy source, use of policy incentives, and other factors.
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energy.gov
official
https://www.energy.gov/science/doe-explainscarbon-sequestration
Carbon sequestration refers to the storage of carbon dioxide (CO2) after it is captured from industrial facilities and power plants or removed directly from
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stories.uh.edu
research
https://stories.uh.edu/magazine/magazine/energy-scale/summer-2024/carbon-diox…
*Assistant Professor Mim Rahimi’s team develops electrochemical processes to mitigate climate change and help industries become more energy efficient.*. *Assistant Professor Mim Rahimi’s team develops electrochemical processes to mitigate climate change and help industries become more energy efficient.*. **I**n the global push to address the negative impacts of climate change, carbon dioxide removal has emerged as a key economic and environmental strategy. His research focuses on the innovative application of environmental laws to emerging technologies, including climate engineering, deep decarbonization, nanoscale materials and microplastics, and climate liability. His research lab is developing a range of electrochemical processes to help industries become more energy efficient and to capture carbon dioxide from ocean and air point sources. **How should we support research and development in the CDR arena to more effectively meet goals related to decarbonization and clean energy efforts?**. **MR:**Several markets exist for the carbon dioxide captured through CDR processes, but the most common application is in enhanced oil recovery.
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climate.mit.edu
research
https://climate.mit.edu/explainers/carbon-capture
Carbon capture and storage (CCS) refers to a collection of technologies that can help address climate change by reducing carbon dioxide (CO2) emissions.
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newclimate.org
article
https://newclimate.org/sites/default/files/2020/07/Options-for-supporting-Car…
100K tCO2 yearly (2012-2020) (Sawada et al., 2018) • The US National Academies of Sciences, Engineering, and Medicine (NASEM) have recommended yearly RD&D funding for DAC of US$ 240 million per year for the next 10 years (Larsen et al., 2019) • UK: £31.5 million GHG Removal Research Programme (UKRI, 2020) • EU Horizon 2020: the NER300 fund has issued funding to CCS demonstration projects • EU Climate KIC accelerator funding for Climeworks direct air capture 2012/2013 Regulation and standards Adoption of a national MRV system for CDR • To our knowledge, no country has yet adopted a national Monitoring, Reporting and Verification (MRV) system for CDR CDR obligations • To our knowledge, no country has yet formulated direct obligations for CDR for companies or consumers Procurement rules • Legislation in the US has been proposed that would require states to purchase a certain amount of fuels or building materials made with air-captured CO2 (Friedmann, 2019) Markets and incentives Tax credits • US 45Q tax credit for carbon capture and storage or utilisation (2008, amended in 2018) Emission reduction credits, results-based payments • Afforestation and reforestation included in CDM with temporary Certified Emission Reductions (tCERs) under the UNFCCC • Reducing emissions from deforestation and degradation (REDD+) is supported with results-based payments under the UNFCCC • California Low-Carbon Fuels Standard (LCFS) (2006, amended in 2018) • Australia’s Emissions Reduction Fund awards credits to projects that would classify as CDR Carbon pricing / carbon tax • The carbon tax in Norway has directly supported CCS projects in the country (Zapantis, Townsend and Rassool, 2019) Public GHG emission targets International – Paris Agreement • 1.5°C goal requires large-scale negative emissions technologies to be deployed by 2050 National- and state-level emission targets • At least 70 countries have committed to net-zero emissions targets that will almost certainly necessitate negative emissions from CDR Public utilities • Consumers Energy’s (USA) net-zero emissions by 2040 plan utilises
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c2es.org
article
https://www.c2es.org/content/carbon-capture/
* Carbon capture, use, and storage technologies can capture more than 90 percent of carbon dioxide (CO2) emissions from power plants and industrial facilities. This natural gas processing plant serves ExxonMobil, Chevron, and Anadarko Petroleum carbon dioxide pipeline systems to oil fields in Wyoming and Colorado and is the largest commercial carbon capture facility in the world at 7 million tons of capacity annually. The first ethanol plant to deploy carbon capture, it supplies 170,000 tons of carbon dioxide per year to Chaparral Energy, which uses it for EOR in Texas oil fields. Carbon dioxide from a gas processing plant owned by DTE Energy is captured at a rate of approximately 1,000 tons per day and injected into a nearby oil field operated by Core Energy in the Northern Reef Trend of the Michigan Basin. This project involves capturing carbon dioxide from natural gas processing for use in enhanced oil recovery in the Lula and Sapinhoá oil fields.