Attrition of granola as a function of manufacturing process parameters during fluidised bed granulation and subsequent pneumatic conveying

Pankaj B. Pathare*, Nurşin Baş, Edmond P. Byrne

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The present study examines the breakage of particulate granola produced by fluidised bed granulation during pneumatic conveying process. Granola was pneumatically conveyed in a purpose built conveying rig designed to mimic product conveying and packaging. Three different conveying rig configurations were employed: a straight pipe, a rig consisting two 45o bends and one with a 90o bend. Particle breakage increases with applied pressure drop, and a 90o bend pipe results in more attrition for all conveying velocities relative to other pipe geometry. In terms of the fluidised bed granulation, there was no single operating parameter that was deemed to have a significant effect on breakage during subsequent conveying. A simple power law breakage model based on process input parameters was developed to describe aggregate breakage during pneumatic conveying.

Original languageEnglish
Pages (from-to)679-686
Number of pages8
JournalAsia-Pacific Journal of Chemical Engineering
Issue number5
Publication statusPublished - Sep 2013


  • breakage
  • fluidised bed granulation
  • granola
  • pneumatic conveying

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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