Feasibility Evaluation of the Terminated Waste Energy In Situ Conversion Strategy toward Carbon Neutralization in Metallurgical Processes

• DOI: 10.1021/acssuschemeng.1c03731
• Publication Date: 2021-10-14T05:01:26Z
• Authors: Jianping Dong; Huining Zhang; Chao Wei; Liang Yang; Caifang Cao; Shaohua Yang; Zuotai Zhang
• Keywords: Carbon fibers

Integrated consideration of carbon dioxide reduction, terminated energy conversion, and resourceful disposal wastes like plastics broadens a new horizon for green metallurgical processes. Here, chlorine-free plastic gasification process in situ utilizing converter slag flue gas heat was proposed as an example, this complicated system's superiority comprehensively evaluated terms syngas preparation efficiency reduction depth through thermodynamics. Specifically, the effects parameters such temperature, pressure, H2O/P, CO2/P, SS/P ratios on both were discussed detail; moreover, two sets theoretical operation conditions explored maximum or reduction. Furthermore, waste agent amount reaction system balance when H2/CO ratio 3:1 2:1 CH4 CH3OH preparation, respectively, purpose product quality regulation. The results showed that H2 CO yields CO2 conversion rate increased temperature but decreased pressure increased, yield promoted by H2O/P instead rate, CO2/P had positive effect not rate; CaCO3 increased. Meanwhile, consumption less needed. However, yield, namely, 44.82–64.13% 88.88–135.69% 800–1000 °C, 1.0 atm, 1–2.0, 1.2–3.0, 1.0, respectively; with respect to efficiency, capacity ranging from 75.17 90% can be obtained 0–0.8, 0.4–1.2, adopted. Definitely, strategy indeed feasible industrial application.