Numerical simulation on high-temperature gasification and melting furnace for solid waste

Xiaoping Liang, Hiroshi Nogami, Jun Ichiro Yagi, Shinichi Isozaki, Tsuneo Matsudaira

Research output: Contribution to journalArticlepeer-review

Abstract

Currently, a number of waste treatment technologies have been developed. Among them, melting treatment has drawn more and more attentions due to merits such as low environmental pollution, high volume reduction and widespread treatment capacity for various waste materials. In this study, a two-dimensional mathematical model of high-temperature gasification and melting furnace was developed. This model considers motion; heat transfer and mass transfer of gas, solid and liquid phases in the furnace. Furthermore, this model did take into account the possible chemical reactions and phase transformations. The governing equations include inter-phase exchange of mass, momentum and heat, and consist of strongly coupled set of simultaneous partial differential equations. The model was applied to a gasification-melting furnace having packed bed for gasification and melting of wastes, and freeboard for secondary combustion of pyrolyzed gas. The computational results clearly showed regions of gasification, combustion and melting in the furnace as well as the flow field distributions of temperature, component concentration and other process variables.

Original languageEnglish
Pages (from-to)79-85
Number of pages7
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume90
Issue number2
DOIs
Publication statusPublished - 2004 Feb

Keywords

  • Free board
  • Mathematical model
  • Packed bed
  • Smelting furnace
  • Waste treatment

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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