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題 名 | A Mathematical Model for Carbothermic Nitridation of Powder Mixture of Carbon and Metal Oxide=碳和金屬氧化物混合物的碳熱還原氧化反應之數學模擬 |
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作 者 | 陳錫圭; 林俊一; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷 期 | 25:6 1994.11[民83.11] |
頁 次 | 頁375-381 |
分類號 | 341.393 |
關鍵詞 | 碳和金屬氧化物混合物; 碳熱; 還原; 氧化反應; Mathematical model; Carbothermic nitridation; Metal oxide; |
語 文 | 英文(English) |
中文摘要 | 本文提出一個碳/金屬氧化物混合物在氮氣氣氛下還原氮化的物理化學模式。基於本模式,在正常擴散區域下,我們導出無因次的統禦方程式。本系統的特性可由五個無因次參數來決定:反應/擴散比σ²、反應性比ß₁和ß₂、反應物含量比γ和謝烏數N□。當ß、γ或N□/的值增加或σ²或ß₁的值降低時,反應速率增加。 |
英文摘要 | A physico-chemical model is proposed to describe the nitridation of carbon/metal oxide powder mixture in a stream of nitrogen. Based on the model, dimensionless governing equations are derived to represent the system in normal diffusion region. The system is characterized by five dimensionless parameters: the reaction/diffusion ratioσ², the reactivity ratios ß₁ and ß₂, the reactant amount ratio γ and the Sherwood number N□. The reaction was found to increase when the values of ß₂, γ or N□ increased, or the values of σ² or ß₁ decreased. |
本系統中英文摘要資訊取自各篇刊載內容。