CO2, sequestration

Jackson, A.J.B., Audus, H. and Singh, R. (2000), Gas turbine requirement for power generation cycles having CO2. sequestration, ISABE-2001-1176. 

Freifeld, B.M., Trautz, R.C., Yousif K.K., Phelps, T.J., Myer, L.R., Hovorka, S.D., Collins, D. 2005. The U-Tube A novel system for acquiring borehole fluid samples from a deep geologic CO2 sequestration experiment. Journal Geophysical Research, 110, B10203, doi 10.1029/2005JB003735. 

Options for CO2 sequestration (a) oceanic and (b) geoiogicai. Source After Metz, B., et al. (2005). IPCC Special Report on Carbon Dioxide Capture and Storage. Cambridge University Press. (See companion website for coior version.)... 

The Commonwealth Scientific Industrial Research Organisation (CSIRO) is engaged in a number of projects relating to CO2 sequestration, including ... 

CO2 Sequestration into Coal Seams. This project is directed at developing fundamental physicochemical descriptions of the coal/ supercritical CO2 interactions as well as the coal/rocl/water/C02 interactions. It will provide quantitative data which will form the basis for deciding what the critical environmental issues are regarding CO2 underground ... 

Study CO2 sequestration in geological sites and development of related technologies. 

Can co2 sequestration on a massive scale be practical, economical, and permanent ... 

Preliminary assessments of the process indicated that hydrogen could be produced at a cost of US 5.00 per million BTU (if carbon sold at US 100/ton). This production cost is less than that for a steam reforming process coupled with CO2 sequestration. The CO2 emissions are also lower60. 

The practicality and environmental consequences of many sequestration techniques have not yet proven from an engineering or scientific aspect. Sequestration still requires much research and development before generating large volumes of hydrogen from coal and sequestering the CO2 produced. CO2 sequestration on a massive scale would need to be permanent to be practical. 

By 2050, CO2 sequestration is over 8 billion metric tons per year, one-... 

Ozdemir, E. (2004) Ph.D. thesis Chemistry of the adsorption of carbon dioxide by argorme premium coals and a model to simulate CO2 sequestration in coal seams. University of Pittsburg, Pittsburgh. 

Psia, (b) co-current CO2 rinse at that pressure with recycle of effluent gas as feed, (c) counter-current evacuation to - 2.5 Psia with simultaneous steam pui e, and (d) counter-current pressurization with a part of CO2 depleted product gas from step (a). The effluent gas from step (c) is partly used as the purge gas in step (b) after recompression, and the balance is withdrawn as the recovered CO2 product gas. The inert gas and CO2 recoveries from the feed gas are, respectively, - 100 and 78% [21]. This application may be attractive for green house gas emission control (CO2 sequestration from a hot flue gas or CO2 removal from combustion gases for power generation). 

Hodson A. J., Tranter M., and Vatne G. (2000) Contemporary rates of chemical weathering and atmospheric CO2 sequestration in glaciated catchments an Arctic perspective. Earth Surf. Process. Landforms 25, 1447-1471. 

Anita A. N., et al. (2001) Basin-wide particulate carbon flux in the Atlantic Ocean regional export patterns and potential for atmospheric CO2 sequestration. Global Biogeochem. Cycles 15, 845-862. 

In the polar ocean, both export production and nutrient status must be known to determine the impact on atmospheric CO2, because both of these terms are needed to determine the ratio of CO2 supply from deep water to CO2 sequestration by export production (Figure 7). For instance, a decrease in export production associated with an increase in surface nutrients would imply an increased leak in the biological pump, whereas a decrease in export production associated with reduced nutrient availability would imply a smaller leak in the pump. In low-latitude regions of upwelling, nutrient status is less important from the perspective of the global biological pump. Nevertheless, since nutrient status is potentially variable in these environments, it must be constrained to develop a tractable list of explanations for an observed change in productivity. 

Since CO2 sequestration raises the cost of energy, it is unlikely that sequestration will be introduced without regulatory pressure. The trade-off between ignoring the risk of climate change and paying for a carbon-neutral energy infrastructure is easier if the cost of the carbon management can be held low. 

Sequestration will only be considered if it is cheaper than the alternatives for reducing CO2 emissions. Alternative forms of energy, including wind and nuclear energy, limit the acceptable price of CO2 sequestration. 

CO2 sequestration technology is a viable contender among a set of options to stabilize the atmospheric CO2 level over the next few decades. The technical ability to start such a process exists today, but the institutional structures required to reduce CO2 emissions are still missing. Carbon sequestration at the very least will buy time for alternatives to fossil fuels to become competitive. It is, however, equally possible that carbon sequestration may remove the major environmental obstacles to the use of fossil fuels, in which case they may prove competitive with alternatives for a long time to come. 

Coal Reforming Hydrogen with CO2 sequestration Renewable Energy Hydrogen/... 

Irrespective of these controversies, research in this intriguing area is crucially important from both fundamental and applied points of view. For instance, solid electrolytes and mixed conductors with mobile AP + cations may find applications in new types of rechargeable battery, and also in the aluminum industry alkaline-earth cation conductors may be used, in particular, for precise humidity control in gaseous media and for CO2 sequestration. This chapter includes a brief introduction to the field, with emphasis placed primarily on the authors own studies. Although many aspects of materials electrochemical behavior require detailed investigation and further validation, the chapter provides an excellent overview of the phases where multivalent cation conduction may occur. 

CO2 sequestration after fossil fuel combustion in energy conversion devices... 

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