A two-phase release model for quantifying risk reduction for modified HF alkylation catalysts

R. Muralidhar, G. R. Jersey, F. J. Krambeck, Sankaran Sundaresan

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


This paper describes a two-phase jet model for predicting the HF rainout (capture) in HF/additive releases. The parent droplets of the release mixture constitute the first phase. The second phase is a vapor-liquid fog. The drops are not in equilibrium with the fog phase with which they exchange mass and energy. The fog at any location is assumed to be in local equilibrium. The fog-phase calculations account for HF oligomerization and HF-water complex equilibria in the vapor phase and vapor-liquid equilibrium in the fog. The model incorporates jet trajectory calculations and hence can predict liquid 'rainout' and the capture distance. The model HF capture predictions are in agreement with small and large scale HF/additive release experiments. The fog properties and flow rate may be used to initialize atmospheric fog dispersion models for use in risk assessment calculations.

Original languageEnglish (US)
Pages (from-to)141-183
Number of pages43
JournalJournal of Hazardous Materials
Issue number2-3
StatePublished - Dec 1995

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis


  • Aerosol
  • HF
  • Jet
  • Multicomponent model
  • Rainout


Dive into the research topics of 'A two-phase release model for quantifying risk reduction for modified HF alkylation catalysts'. Together they form a unique fingerprint.

Cite this