AMP and MEA Carbamate Stability Comparison
In this post, we explain why carbamate of sterically hindered AMP is unstable relative to that of MEA. The instability of AMP carbamate then leads to an easy break down to release CO2 and amine in the desorption process, thus giving rise to a higher CO2 loading and a lower desorption heat requirement than those of MEA.
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Mathematical Modeling, Simulation and Optimization of a CO2 Capture Process in an Absorption Column using a Catalyzed Ionic Solvent as an Absorbent
As the world moves toward a more efficient and cleaner energy ecosystem, research in energy systems improvement and clean fuel technologies have taken the forefront of scientific studies within this domain. However, the development of innovative solutions from the laboratory to an industrial scale can be extremely costly, restricting the breadth of experimentation...
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Choice of Binder in Catalyst Preparation
Catalysts are employed in various industrial applications such as water purification, food, medical, cosmetology, automotive, gas purification, petroleum and precious metal recovery. Catalyst have the ability of speeding up the overall reaction without undergoing any permanent chemical change, as such, most catalyst are expected to be inert. All catalyst consist of an active phase, a support and a promoter or an inhibiter. When it comes to solid catalysts, one more component is key in obtaining the final catalyst; a binder!
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Absorber Column Dimensions
When designing an absorber column to achieve the maximum efficiency, two things need to be determined, the diameter and the height of the column. In lame man’s terms, the diameter refers to how fat the column whereas the height refers to how tall the column will be. For starters, diameter relates to capacity, whereas height relates to the absorption rate...
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Application of CO2 Loaded Ionic Solvent in Concrete
The increase in CO2 emissions, as a major greenhouse gas, has led to increase in average global temperature. At present CO2 levels in the atmosphere are more than 412 ppm and rising. To succeed in limiting the increase in global temperature to 1.5˚ C above pre-industrial levels, CO2 emissions worldwide must be reduced substantially in all sectors of the economy. Carbon capture utilization and storage (CCUS) provides a means of producing low-carbon electricity from fossil fuels and of reducing CO2 emissions from industrial processes such as gas processing, cement and steel making, where other decarbonization options are limited...
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Metal-Organic Frameworks for CO2 Capture
Developing an effective carbon dioxide capture system is essential to reducing greenhouse gas emissions and moving toward a cleaner energy future. As an emerging new class of porous solids, metal-organic frameworks (MOFs) adsorbents are particularly promising as CO2 capture materials because they have high internal surface areas, low heat capacity, and adjustable pore functionality enabling the selective adsorption of large quantities of CO2...
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Balancing the Global Carbon Budget with CCS
In the pre-industrial era, the amount of CO2 released into the atmosphere due to the natural geological processes was almost equal to that of sinking back to the land, vegetation, and ocean. It can be said that the carbon cycle was balanced. Due to human evolution especially in the industrial era, human activities create CO2 much faster than natural geological processes, leading to an imbalance of the carbon cycle that directly affects global warming and climate change...
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Carbon Capture Storage and Utilization
Though the post – combustion capture process by absorption – regeneration is the more mature technology in Carbon Capture Utilization and Storage (CCUS), its cost reduction is still necessary and requires immediate attention. The high cost in the capture process relates principally to infrastructure, energy and disposal of the CO2 captured.
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Effect of Temperature on Amine-CO2 Reaction Kinetics
In general, rate of chemical absorption of CO2 increases with increasing temperature. This is because an increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision that yields the product. This was observed in our experiments for the absorption temperature regime (40 - 60 ºC)...
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Effect of Intermolecular Interaction of Amine on Cp and ΔHvap
The knowledge of intermolecular forces and their strength between molecules of amines is a very important piece of information that one can use to determine the behavior of amines used for capture of carbon dioxide from industrial exhaust gases. In today’s what’s cooking post, we discuss on how the intermolecular forces that hold molecules of the amine together affect its specific heat capacity (Cp) and heat of vaporization (ΔHvap) which in turn, can affect the heat consumption of the amine process.
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