Predicting amine mist formation based on aerosol number concentration and size measurements in flue gas

Jan Mertens*, Leonie Brachert, Dominique Desagher, Bernd Schallert, Purvil Khakharia, Earl Goetheer

*Corresponding author for this work

Research output: Contribution to journalConference articleScientificpeer-review

18 Citations (Scopus)


Amine based solvent used for SO4 capture can be lost during the process due to: degradation, vaporization, mechanical losses and aerosol (mist) formation. Only recently, studies have appeared pointing out that aerosols can dominate the total amine emission at pilot plant scale behind coal fired power plants. Future full scale amine scrubber installations will be imposed emission limit values (ELV) for a number of components including NH3 and the amine itself. Most likely these ELV will be expressed as maximum concentrations tolerated in the SO4 poor flue gas leaving the stack so it is important to prevent or cure amine aerosol emission. The study presents a novel combination of two existing measurement techniques, that measure: (i) amine emissions from the top of the absorber using FTIR and (ii) PSD of the incoming flue gas using the ELPI+. The study is the first to show how combining these two measurement techniques allows to predict the presence or absence of mist formation. This hypothesis is based on information obtained during several measurement campaigns on different pilot plants.

Original languageEnglish
Pages (from-to)893-901
JournalEnergy Procedia
Publication statusPublished - 2014
Externally publishedYes
Event12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 - Austin, United States
Duration: 5 Oct 20149 Oct 2014


  • Aerosol
  • Amine emission
  • Electrical low pressure impactor (ELPI)
  • Fourier transformed infra red (FTIR)
  • Mist


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