Numerical Simulation for Direct Reduction of Pure Zinc Oxide Pellet Containing Carbon
Based on the equations of mass conservation, energy conservation and chemical reaction rates, a mathematical model of direct reduction for pure zinc oxide pellet containing carbon was built. On the basis of verifying the accuracy of the model by comparing calculated values with experimental results, the effects of furnace temperature, porosity and radius of pellet on the reduction were investigated. The calculated results revealed that the furnace temperature and the radius of pellet have significant effect while porosity has only a little. Thus it can be inferred that the rate-determining step for direct reduction in the pellet containing zinc oxide and carbon is heat transfer.
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
X. W. An et al., "Numerical Simulation for Direct Reduction of Pure Zinc Oxide Pellet Containing Carbon", Advanced Materials Research, Vols. 194-196, pp. 56-60, 2011