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Abstract
It is generally accepted that carbon capture and storage strategies will play a crucial role for mitigating CO2 emissions at short- and mid-term scenarios. In this study, a membrane gas absorption process was assessed as potential candidate method for CO2 capture in a Greek brick production industry. The membrane contactor pilot unit was installed near the flue, where a slip stream of the flue gases was continuously sampled and fed in the hollow fiber membrane module. A 0.25 M aqueous diethanolamine solution was used as a typical solvent for CO2 capture. The % CO2 removal was chosen as a typical performance indicator and the liquid to gas flow ratio was chosen as the main controlling variable of the process. The test results indicate that almost complete CO2 removal can be attained with a liquid to gas flow rate around 1, demonstrating the high potential of the proposed technology.
Highlights
It has been generally stated that climate change through global warming is one of the most serious environmental threats that humankind is facing; greenhouse gas emissions (GHG’s) should be reduced in every field of activities
It is generally accepted that carbon capture and storage strategies will play a crucial role for mitigating CO2 emissions at short- and mid-term scenarios
The results indicated that the flue gas stream is loaded with a number of other pollutants which could have synergistic effects and affect the performance of the process compared to laboratory experiments
Summary
It has been generally stated that climate change through global warming is one of the most serious environmental threats that humankind is facing; greenhouse gas emissions (GHG’s) should be reduced in every field of activities. During the last two decades, there was a growing scientific consensus that the rising atmospheric levels of CO2 as a result of man-made activities (e.g., fossil fuel burning, cement and lime production, ammonia and ethylene oxide synthesis, aluminum and glass industries, fermentation, deforestation, use of fertilizers, etc.) are responsible for around two-thirds of the greenhouse effects, while CO2 was recognized as the most significant anthropogenic greenhouse gas. For this reason, there is a pressing need to find ways for reducing CO2 levels in the atmosphere. Most studies on the potential application of CCS have focused on the power sector even though to achieve its full potential to reduce overall emissions, many other industry sectors must be considered [1,2,3,4]
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