【摘要】 建立了炼焦过程的Aspen Plus模拟模型,包括煤料预热模块、反应器单元模块、以及反应器单元模块间的耦合模拟;对炭化室和燃烧室两个反应器进行热力学耦合,并以产品产率为灵敏度指标对过程进行优化分析。结果表明,模拟结果与实际工业过程具有一致性,RStoic模型构建煤调湿反应器,所产出的干煤水分为2.78%;RYield模型模拟炭化室煤干馏过程,产出荒煤气温度为751.42℃;燃烧室向单孔炭化室提供的最佳热负荷为431.47 kW,此时主产品焦炭产率为83%,燃烧室平均温度为1 412℃,节能率为18.18%。更多还原

【Abstract】 Aspen Plus simulation model for the coking process was established, which included coal preheating module,reactor modules, and coupled modeling of reactors. In addition, through thermodynamic coupling of two key reactors of carbonization chamber and combustion chamber, the process was optimized and analyzed with the product yield as the sensitivity index. Simulation results indicated that the simulation data were consistent with commercial process. The dry coal moisture content produced in the RStoic model for coal moisture control reactor was 2.78%. The temperature of raw coke oven gas was 751.42 ℃ in the RYield model for coal dry distillation process of carbonization chamber. The optimal heat load provided from combustion chamber to single-hole carbonization chamber was 431.47 kW. Meanwhile, the yield of the main product coke was 83%, the average temperature of combustion chamber was 1 412 ℃, and the efficiency of energy saving was 18.18%.更多还原