An energy-based model of gas-solids transport in a riser

Chao Zhu, Jun You

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Gas-solids transport in riser flows can be found in many industrial applications such as FCC in petrochemical industry, coal combustion in utility industry, and pneumatic conveying of drug powders in pharmaceutical industry. An energy-based mechanistic model for analyzing the partitions of the axial gradient of pressure by solids acceleration, collision-induced energy dissipation, and solids holdup in gas-solid riser flows was developed. Based on this model, the correct estimation of axial distributions of solids holdup and solid velocity were obtained. The impact of solids acceleration on the pressure drop can be significant in a range of moderate solids holdup whereas the effect of energy dissipation became important in the dense phase transport region. The combined energy partition of solid acceleration and energy dissipation in the solid acceleration and dense phase transport regimes was typically about 20% and can be as high as 50%. This is an abstract of a paper presented at the AIChE Spring Annual Meeting - The 5th World Congress on Particle Technology (Orlando, FL 4/23-27/2006).

Original languageEnglish (US)
Title of host publication2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology
StatePublished - Dec 1 2006
Event2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology - Orlando, FL, United States
Duration: Apr 23 2006Apr 27 2006

Other

Other2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology
CountryUnited States
CityOrlando, FL
Period4/23/064/27/06

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Chemical Engineering(all)
  • Bioengineering
  • Safety, Risk, Reliability and Quality

Fingerprint Dive into the research topics of 'An energy-based model of gas-solids transport in a riser'. Together they form a unique fingerprint.

Cite this