## Developing a thermochemical model for the iron blast furnace: rate of reduction of an oxide sphere in a stream of reducing gas |

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### Contents

Abstract | 1 |

Composite equation for rate of reduction | 10 |

Discussion | 16 |

1 other sections not shown

### Common terms and phrases

area of reaction Boltzman's constant boundary conditions Bureau of Mines chemical reaction collision integral concentration gradient counterdiffusion DEVELOPING A THERMOCHEMICAL diffusion of gases diffusion of hydrogen effective diffusivity equation 15 Equation 41 EQUATION FOR RATE equilibrium constant ferrous oxide function cp gas and solid gas flow gas phase gases in porous given in equation gives the rate hematite incoming reducing gas iron blast furnace Iron Oxide l+k)a DR0cp labyrinth factor mass transfer metal-oxide interface molecular moles per cm3 Nusselt oxide core Oxide Sphere oxygen packed bed parameter porosity porous metal shell porous shell radius of metal-oxide rate equations rate of gas rate of mass rate of reaction rate of reduction reaction rate coefficient reaction surface reactor reduced oxide reduction process represents the effect reverse reaction shell of reduced Stream of Reducing temperature THERMOCHEMICAL MODEL Transport Properties value of cp Values of Function void fraction water vapor