Analysis of steelmaking kinetics from IMPHOS pilot plant data

作者:Hewage Anuththara Kirindigoda*; Rout Bapin Kumar; Rout Bapin Kumar; Brooks Geoffrey; Naser Jamal
来源:Ironmaking and Steelmaking, 2016, 43(5): 358-370.
DOI:10.1179/1743281215Y.0000000064

摘要

It is widely accepted that understanding the kinetics of steelmaking is a complex task, and reliable and validated kinetics models are required for developing successful steelmaking process models. Therefore, as an initial attempt, this paper analyses the applicability of first order kinetics to explain the steelmaking reaction kinetics using the published data in the Improving Phosphorus Refining research report. The process data for 20 heats in a 6 tonne pilot plant were analysed for the removal of carbon, silicon, manganese and phosphorus using first order kinetics with static and dynamic equilibrium conditions. It was observed that the removal behaviour of silicon closely followed a first order kinetics relationship, while that of carbon only approximately followed a first order kinetics relationship. The removal of manganese did not show a good degree of fit with first order kinetics using static equilibrium condition, but a clear improvement was observed when calculated using dynamic equilibrium condition. In contrast, the kinetics of phosphorus oxidation did not follow any first order relationship.

  • 出版日期2016