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SUMMARY:Understanding the role of thermophysical properties to design effi
 cient processes for CO2 capture and separation
DTSTART:20200326T160000
DTEND:20200326T170000
DTSTAMP:20260427T201757Z
UID:f51ad8118ed4ee7eab9d3465b9c9b67909d43a6bd6c1c97f534d27ca
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Lourdes F. Vega\nResearch and Innovation Center on CO2 a
 nd H2 (RICH Center) and Chemical Engineering Department\,\nKhalifa Univers
 ity\, Abu Dhabi\, UAE\nChE-606 - Highlights in Energy Research seminar ser
 ies\nOne of the alternatives to mitigate CO2 emissions is to capture and s
 eparate it from diluted sources before it is emitted into the atmosphere. 
 The first step in this process is to find suitable CO2 capture technologie
 s\, being aqueous monoethanolamine (MEA) solutions the most mature technol
 ogy for this purpose currently used in industrial processes. However\, thi
 s process has some important drawbacks such as high regeneration energy co
 nsumption\, loss of solvent and amine degradation. Different strategies ar
 e devised to overcome these limitations\, all of which require the fundame
 ntal understanding of the key molecular properties leading to the desired 
 performance. The focus of this presentation will be on how understanding t
 he molecular interactions of complex mixtures can help in the development 
 of more efficient processes for CO2 capture and separation. We will presen
 t the capabilities of a robust molecular-based equation as a screening too
 l of chemical solvents for the efficient removal of CO2 from industrial ga
 s streams. The tool is built based on the soft-SAFT equation in which subs
 tances are modelled as chain molecules characterized by a set of molecular
  parameters representing the chemical structure of molecules and key inter
 molecular interactions. The equation provides accurate phase equilibria\, 
 interfacial properties and viscosities of the relevant mixtures allowing p
 redictions of their performance at process conditions\, with a very limite
 d set of experimental data. The study is performed in a systematic manner\
 , first benchmarking the performance of the model for capturing CO2 in aqu
 eous amines\, followed by water-free and water-lean amine systems. In addi
 tion\, results from molecular simulations performed to understand the effe
 ct of degraded amines in the capture and separation process will also be p
 resented. Finally\, examples will be provided on combining molecular simul
 ations with process modeling for designing ad-hoc processes of CO2 separat
 ion by adsorption as an alternative to aqueous amines.\n\nThe seminar can 
 also be followed remotely by joining the online Cisco WebEx meeting (conne
 ction possible 15 minutes before the talk).\nYou can find how to use 'Cisc
 o WebEx' on MacOS (PDF file) or on a Windows system (PDF file).\nIn case o
 f problem\, you can contact our IT support (37679 - it.vs@epfl.ch)
LOCATION:Tzeuzier\, I17 4 K2 https://plan.epfl.ch/?room==I17%204%20K2
STATUS:CANCELLED
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