CO2 sequestration Articles
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Enhanced liquid recovery by carbon dioxide sequestration in gas/condensate reservoirs
CO2 sequestration in a depleted gas/condensate reservoir could be a viable option due to the economic benefits associated with the enhanced liquid recovery. According to previous laboratory investigations, CO2 may be superior to methane (CH4) or nitrogen (N2) for enhanced condensate recovery from the depleted gas/condensate reservoirs. However, the impact of CO2 distribution (and the associated ...
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Recovering coal bed methane from deep unmineable coal seams and carbon sequestration
Published data from nearly 2,000 coal samples comprising 250 coal beds from 17 states, representing many of the coal producing horizons in the USA, shows moderate correlation (0.7) between depth and methane content for high volatile coal ranks. Low-volatile rank coals average the highest methane content, 12.74 m?/ton (450 ft?/ton), subbituminous rank coals the lowest, Keywords: CO2 sequestration, ...
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Systematic approach to numerical simulation and modelling of shale gas reservoirs
With the rapid development of unconventional resources in the USA and its contribution by diminishing energy dependency on foreign supplies, reservoir simulation technology is facing new challenges in providing key information to be utilised for long-term development decisions. Therefore, growth in shale gas reservoir development necessitated new approach to reservoir simulation. In this paper, ...
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Meeting the energy challenges of the 21st century
The first half of the 21st century will have to meet two major challenges supply energy to everyone in an equitable manner, while preserving their environment both locally and globally. Energy efficiency and conservation are essential factors in meeting these challenges, but are in no way sufficient. The paper analyses the pros and cons of each source of energy, and the role each could play. Some ...
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Carbon dioxide capture and storage scenarios: a case study of the East Midlands and Yorkshire (UK)
This paper uses quantitative electricity supply scenarios to explore the potential for CO2 storage at locations in the Southern North Sea basin from point sources within a case study region that consists of the East Midlands combined with Yorkshire and Humberside in the UK. The reactions to these scenarios from a variety of stakeholders from the public and private sectors are explored using an ...
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Demands on thermal power plants in the liberalised energy market
In the liberalised energy market, a diversified set ("mix") of power plants will be needed. By investigating present and anticipated future criteria in detail, available technologies and outlines of further development are identified and discussed. Among them, concepts for efficiency-optimised base load plants as well as units with an improved cycling operation capability are both attributed to a ...
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EPA`s proposed underground injection control regulations
As the drivers for global climate change become better understood by scientists, politicians, industry, and the public, there is growing consensus that action should be taken to limit atmospheric emissions of carbon dioxide (CO2) and other greenhouse gases (GHGs). Even as wind, solar, nuclear, biofuels, and other alternative energy sources become increasingly important, the United States will ...
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Crediting co2 sequestration – An alternative approach to integrating CCS into the EU ETS
Carbon Capture and Storage (CCS) technologies are currently discussed as a promising measure by stakeholders in the power industry sector, who see it as an opportunity to both continue using fossil fuels and to comply with the challenges of climate protection by reducing carbon dioxide emissions. Initial demonstration projects have already been launched.1 According to the European Commission, it ...
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A method for estimating the cost to sequester carbon dioxide by delivering iron to the ocean
The need to find economical methods of CO2 sequestration is now urgent. Ocean iron fertilisation has been suggested as a low cost mitigation option to capture and store carbon. However, previous methods of estimating the cost fail to account for many of the losses and offsets occurring over the storage period. A method for calculating the net carbon stored from iron fertilisation of high nutrient ...
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Energy-efficient stirred-tank photobioreactors for simultaneous carbon capture and municipal wastewater treatment
Algal based wastewater treatment (WWT) technologies are attracting renewed attention because they couple energy-efficient sustainable treatment with carbon capture, and reduce the carbon footprint of the process. A low-cost energy-efficient mixed microalgal culture-based pilot WWT system, coupled with carbon dioxide (CO2) sequestration, was investigated. The 21 L stirred-tank photobioreactors ...
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Analysis of availability and accessibility of hydrogen production: An approach to a sustainable energy system using methane hydrate resources
It is considered that use of hydrogen as an energy source may contribute to environmental improvement and provide an alternative energy system. Moreover, it is anticipated that hydrogen will be in great demand in the near future for use in such vehicles as fuel cell-based cars. Research and development of a number of advanced methods of hydrogen production (OTEC, water photolysis using a ...
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Air pollution impacts from carbon capture and storage (CCS)
Carbon Capture and Storage (CCS) consists of the capture of carbon dioxide (CO2) from power plants and/or CO2-intensive industries such as refineries, cement, iron and steel, its subsequent transport to a storage site, and finally its injection into a suitable underground geological formation for the purposes of permanent storage. It is considered to be one of the medium term 'bridging ...
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Polygeneration-IGCC concepts for the production of hydrogen rich fuels based on lignite
This paper presents three IGCC-power plant concepts for central production of a hydrogen-rich fuel (methanol, hydrogen, synthetic natural gas ? SNG) from lignite. Each concept contains a CO2-separation, which produces a sequestration-ready CO2-rich stream. Thus, CO2-emissions caused by use of lignite are considerably reduced. Furthermore, the produced low-carbon fuels are converted in ...
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Liability and financial responsibility frameworks for carbon capture and sequestration
Carbon dioxide capture and sequestration (CCS) is an important option for reducing CO2 emissions from human activities. There is growing interest in CCS as renewable energy and energy efficiency alone are unlikely to deliver the emission reductions necessary to stabilize atmospheric concentrations of greenhouse gases by mid-century.1 CCS involves capturing CO2 generated from fossil fuel ...
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Effects of regional afforestation on global climate
Carbon (C) sequestration following afforestation is regarded as economically, politically, and technically feasible for fighting global warming, whereas the afforested area which will contribute more efficiently as sinks for CO2 is still uncertain. To compare the benefits for C sequestration combined with its biogeochemical effects, an earth system model of intermediate complexity, the McGill ...
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An Overview of Terrestrial Sequestration of Carbon Dioxide: The United States Department of Energy`s Fossil Energy R&D Program
Abstract Increasing concentrations of CO2 and other greenhouse gases (GHG) in the Earth's atmosphere have the potential to enhance the natural greenhouse effect, which may result in climatic changes. The main anthropogenic contributors to this increase are fossil fuel combustion, land use conversion, and soil cultivation. It is clear that overcoming the challenge of global climate change ...
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A review of non–renewable energy options in Illinois
The State of Illinois has the largest non–renewable (fossil) energy reserves among all the states in the USA. We report our studies on coal, oil and gas energy resources, conversions, consumptions and carbon dioxide sequestration advances in Illinois from the point of view of sustainability in energy and environmental. This includes reserves and characteristics of coal, oil and gas in the ...
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