基于HSC计算的煤焦油化学链热裂解反应优化

Optimization of the chemical looping reaction for the thermal cracking of coal tar based on HSC calculation

中文关键词: 化学链热裂解  炭黑收率  载氧体  HSC模拟  能量利用率

英文关键词: Chemical looping pyrolysis  HSC  oxygen carriers  carbon black yield  energy utilization rate

中文摘要:

      以流化床装置中煤焦油化学链热裂解制取炭黑条件为参照，进行了煤焦油化学链热裂解制炭黑反应的数值计算。对比分析了不同载氧体类型以及同一载氧体不同掺混比例下的炭黑收率和能量利用率。结果表明：采用Fe/Al复合载氧体时与其他载氧体相比，炭黑收率更高，并且能达到较高的能量利用效率；Fe/Ni复合载氧体更适用于气化。虽然模拟结果与实验数据有所偏差，但本模拟结果对煤焦油化学链热裂解制炭黑反应工况的优化具有参考作用。

英文摘要:

      The chemical looping pyrolysis of coal tar to produce the carbon black (CB) in a fluidized bed system was as the referenced condition; the theory calculations in thermo chemistry software HSC was carried out to optimize the chemical looping thermal cracking reaction of coal tar to achieve the higher CB yield and higher energy utilization rate. The different kinds of oxygen carriers under the wide range of reaction temperature were compared according to its carbon yield, energy utilization rate and NO/SO2 pollutants emission. For all three carriers, Fe/Al compound carrier of Fe2O3 to Al2O3 of 6:4, gets the highest carbon black yield and higher energy utilization efficiency; Fe/Ni compound carrier is more suitable for gasification to produce the CO gas fuel. Although the simulation results somewhat differ from the experimental data, the simulation and calculation results are useful for the optimization of the chemical looping reaction of coal tar thermal cracking.