These results can be used as a reference for optimization of polygeneration systems . the syngas generated from coal needs shifting reaction to adjust h2 / co ratio to fit the methanol synthesis requirement 由煤制得的合成气经过变换反应达到满足甲醇合成要求的氢碳比,这一过程消耗了能量但提高了甲醇产率,在不同的甲醇产率下多联产系统的效率随之改变。