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Ultrasonic Desorption of CO 2 – A New Technology to Save Energy and Prevent Solvent Degradation
Author(s) -
Gantert S.,
Möller D.
Publication year - 2012
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201100395
Subject(s) - desorption , data scrubbing , solvent , ultrasonic sensor , process engineering , amine gas treating , chemistry , chemical engineering , raw material , degradation (telecommunications) , waste management , stripping (fiber) , pulp and paper industry , materials science , adsorption , organic chemistry , computer science , composite material , engineering , telecommunications , physics , acoustics
A central concern of future research activities in the field of carbon capture and storage is the reduction of energy demand for solvent regeneration. This also includes, besides the development of more efficient CO 2 absorbents, the exploration of alternative desorption methods. The stripping process is generally regarded as the state‐of‐the‐art in amine scrubbing, although significant amounts of heat are required for steam generation in the stripper. Against this background, a new desorption technique on the basis of pressureless amine scrubbing is under development, in which an ultrasonic field is used to accelerate the CO 2 desorption. With the new ultrasound method, applied for a patent, desorption of CO 2 can be performed at temperatures below 80 °C. This special feature of the ultrasonic‐assisted CO 2 degassing can be applied advantageously together with weakly binding CO 2 absorbents which are in use in connection with a high CO 2 partial pressure in the raw gas.