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Disposal of biomass in the agriculture and steel slags in the steel industry provides a significant solution toward sustainability in China. Herein these two sectors were creatively combined as a novel method, i.e., biomass/CO2 gasification using waste heat from hot slags where the influence of chemical compositions of steel slags, characterized as iron oxide content and basicity, on gasification...
Nowadays, disposal of sewage sludge from wastewater treatment plants and recovery of waste heat from steel industry, become two important environmental issues and to integrate these two problems, a two-stage high temperature sludge gasification approach was investigated using the waste heat in hot slags herein. The whole process was divided into two stages, i.e., the low temperature sludge pyrolysis...
This paper investigated the cooling processes of high temperature slags using SHTT (single hot thermocouple technique) and CFD (computational fluid dynamics) method for the purpose of recovering the waste heat. A series of slags with the CaO/SiO2 ratio of 1.1 and different Al2O3 contents were designed. The Continuous Cooling Transformation diagrams were established, aiming to bridge the gap between...
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