浆态床甲醇合成过程工艺研究

Study on the Methanol Synthesis in Slurry Reactors

对浆态床内液相甲醇合成过程进行研究 ,分析不同操作条件对反应过程的影响 ,并重点考察传质过程对反应的影响 ,为确定浆态床甲醇合成工业化生产最佳反应条件提供了基础实验数据。实验结果表明 ,CO转化率随温度的变化存在一个最优区域 ,而随压力的升高单调增大 ;原料气空速的增大虽然可提高甲醇的产率 ,但同时会降低CO的转化率 ;对于浆态床体系 ,最优氢碳摩尔比大于 2 /1;浆态床可通过改善传质效果达到进一步提高CO转化率的目的。

Studies on methanol synthesis from syngas have been carried out in a slurry reactor,and the effect of different operation conditions on the synthesis process has been analyzed,especially the influence of mass transfer process.All these are important for determining the optimum reaction conditions and for reactor development and design for methanol synthesis in slurry systems.The results show that there is an optimum temperature range in which CO conversion can reach a maximum,and CO conversion increases with the reaction pressure.A large space velocity of syngas can enhance the productivity of methanol,but it decreases the CO conversion.The best ratio of hydrogen to carbon of syngas at reactor entrance is above 2/1 in slurry system,and the CO conversion in slurry reactor can be enhanced by improving the mass transfer process.