温度与压力对石油焦气化制备甲醇合成气的影响

Effect of temperature and pressure on gasification of petroleum coke for methanol synthesis gas

基于Aspen plus建立石油焦-氧气水蒸气流化床气化制备甲醇合成气模型,用仿真模拟结果与实验值相比较,发现模拟值与实验值具有良好的一致性。并且分析了不同条件下(气化温度、气化压力)对合成气体积分数、合成气产率、φ(H_2)/φ(CO)的影响。结果表明:升高温度可导致φ(H_2)/φ(CO)比值下降,低压有利于制取甲醇合成气。

Based on Aspen plus, a model of methanol synthesis gas was prepared by petroleum coke oxygen water vapour fluidized bed gasification. The simulation results were compared with the experimental values. The results showed that the simulated values were in good agreement with the experimental values. The effects of gasification temperature and gasification pressure on the volume fraction of synthetic gas, the yield of synthetic gas and the molar ratio of H 2 to CO were also analyzed. The results show that the increase of temperature can lead to a decrease in the ratio of the molar ratio of H 2 to CO. Low pressure is beneficial to the production of methanol synthesis gas.