This work presents a techno-economic & environmental analysis of a CO₂ mineralization process, intended to examine its potential for CO₂ reduction and economic feasibility. The CO₂ mineralization technology of this study is composed of the CO₂ carbonation process and the brine electrolysis process, producing various chemical compounds such as sodium bicarbonate, hydrogen, and chlorine. Notably, the CO₂ mineralization process is able to utilize flue gas with a low concentration of CO₂ that has not been subjected to CO₂ capture processes. For the technical feasibility analysis of the CO₂ mineralization process examined in the study, performance evaluation is conducted for a bench-scale CO₂ mineralization test unit (2 kg/day CO₂ utilization capacity), yielding sodium bicarbonate of over 97% purity. It is also estimated that the CO₂ utilization process of this study produces 0.65 tons of CO₂ emissions per ton of sodium bicarbonate produced, which indicates a 2.09 ton CO₂ reduction compared to the conventional processes which produce 2.74 tons of CO₂ emissions for the same amount of sodium bicarbonate production. With these results as a basis, an economic evaluation is conducted for a commercial-scale CO₂ utilization plant (sodium bicarbonate production capacity: approximately 5000 tons/year) which utilizes CO₂ in flue gas produced from thermal power plants. The evaluation supports the economic feasibility of the process with a benefit/cost ratio (B/C ratio) of 1.12 and internal rate of return (IRR) of 10.4%.

这项工作提出了对CO ₂矿化过程的技术经济和环境分析，旨在检查其减少CO _2的潜力和经济可行性。这项研究的CO ₂矿化技术由CO ₂碳化过程和盐水电解过程组成，可产生各种化学化合物，例如碳酸氢钠，氢气和氯气。值得注意的是，CO ₂矿化过程能够利用未经过CO ₂捕集过程的具有低浓度CO _2的烟道气。用于CO ₂的技术可行性分析在研究中研究的矿化过程中，对台式规模的CO ₂矿化测试装置（2 kg /天的CO ₂利用能力）进行了性能评估，得出纯度超过97％的碳酸氢钠。还估计，该研究的CO ₂利用过程每生产一吨碳酸氢钠会产生0.65吨CO ₂排放，这表明与传统方法相比，传统过程会产生2.74吨CO ₂排放，从而减少了2.09吨CO ₂。碳酸氢钠产量相同。以这些结果为基础，对商业规模的CO ₂进行了经济评估。利用火力发电厂产生的烟道气中的CO _2的利用厂（碳酸氢钠生产能力：约5000吨/年）。该评估以1.12的收益/成本比率（B / C比率）和10.4％的内部收益率（IRR）支持该过程的经济可行性。