Hydrodynamic analysis of a circulating fluidized bed coal water slurry gasifier

Huachung Tsui, Savash Yavuzkurt

Research output: Contribution to conferencePaper

Abstract

The hydrodynamic analysis was conducted in order to understand how the hydrodynamics of the circulating fluidized bed (CFB) influences the process of gasification. The fundamentals of this operation are still not fully understood. The solid entrainment rates in the CFB are underestimated if the empirical correlation developed in the previous literature are used. Thus, a correlation between the dimensionless entrainment rate and the entrainment parameter was derived for determining the solid entrainment rate more accurately. Combustion and solid entrainment models were also developed. Finally, comparisons were made between the results obtained from the hydrodynamic analysis and the kinetic analysis. It was concluded that the process of gasification of coal water slurry fuels was less sensitive to the hydrodynamic effects than to the kinetics of char gasification for a given solid loading. However, the hydrodynamics in the main mechanism which determines the solid loading.

Original languageEnglish (US)
Pages39-47
Number of pages9
StatePublished - Dec 1 1990
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Dallas, TX, USA
Duration: Nov 25 1990Nov 30 1990

Other

OtherWinter Annual Meeting of the American Society of Mechanical Engineers
CityDallas, TX, USA
Period11/25/9011/30/90

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Tsui, H., & Yavuzkurt, S. (1990). Hydrodynamic analysis of a circulating fluidized bed coal water slurry gasifier. 39-47. Paper presented at Winter Annual Meeting of the American Society of Mechanical Engineers, Dallas, TX, USA, .