This study aims to solve the problem of decarbonization of industrial emissions from metallurgical furnaces using the process of carbothermic reduction of silicon in ore-thermal furnaces (OTFs) as an example. The methods used for cleaning the exhaust gases cannot completely ensure the processing of carbonaceous emissions. We propose a method of using conversion-type gasifiers for carbon reduction when processing combustion products of exothermic reactions in metallurgical units. Computational fluid dynamics and mathematical modeling are applied to confirm the feasibility of the proposed solution. As part of the scientific problem of decarbonization associated with reducing the carbon footprint, the thermodynamic processes in changing the dust–gas medium composition based on the solution of fundamental principles related to the modification of the Bell–Boudouard equation have been analyzed. Consequently, the calculated value of the carbon dioxide flow rate can become the initial parameter for the calculation model of a conversion gasifier for an OTF in the production of metallurgical-grade silicon.

本研究旨在以矿热炉（OTF）中硅碳热还原工艺为例，解决冶金炉工业排放的脱碳问题。采用的废气净化方法并不能完全保证碳排放的处理。我们提出了一种在冶金装置中处理放热反应燃烧产物时使用转化型气化炉进行减碳的方法。应用计算流体动力学和数学模型来确认所提出的解决方案的可行性。作为与减少碳足迹相关的脱碳科学问题的一部分，基于与贝尔-布杜阿尔方程修正相关的基本原理的解决方案，分析了改变尘埃气体介质成分的热力学过程。因此，二氧化碳流量的计算值可以成为冶金级硅生产中OTF转化气化炉计算模型的初始参数。