关键词: 精甲醇, 酸度, 控制

Abstract: By analyzing factors affecting the acidity of fine methanol in a methanol production unit, some measures to overcome the high acidity of methanol product were proposed, such as adjusting the adding amount of sodium hydroxide to predistillation column, optimizing the operating parameters of predistillation column, using optimum reflux ratios for pressured distillation column and atmospheric distillation column, keeping the methanol synthesis system under optimum reaction conditions and venting the non-condensable gas of predistillation column under proper conditions. Since process improvements and the optimization of operation parameters, the acidity of fine methanol could meet the requirement of super grade product standard.

Key words: fine methanol, acidity, control