The removal of methyldiethanolamine (MDEA) from solvent
naphtha
is crucial due to its impacts on pH and the refining process. In this
study, the Fluent simulation method was used to study the internal
flow field of a jet-cyclone separator to address the limitations of
experimental research. The absorption capacity of water and ethylene
glycol were compared by batch experiments as a jet-cyclone coupled
separation method for MDEA. In addition, the effects of cyclone inlet
flow rate, absorbing liquid temperature, absorbing liquid flow rate,
and equipment structure on the separation efficiency of MDEA were
investigated. The results showed that the comprehensive separation
efficiency of MDEA ranged from 81.4 to 95.43%. This work is the first
to use a jet-cyclone coupling separator to treat MDEA in solvent naphtha,
expanding the gas–liquid mass transfer equipment field, with
promising application prospects.
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