关键词: “背包式”反应精馏, 乙酸甲酯, 水解

Abstract: An experimental setup of catalytic distillation coupled with a side reactor was established to hydrolyze methyl acetate with high conversion rate. The influences of operating parameters on the conversion rate and the mass ratio of acetic acid to water were investigated. This new technology was also compared with traditional single column catalytic distillation. The results showed that the molar ratio of water to methyl acetate had a great impact on the conversion rate of methyl acetate. With the increase of the volume ratio of reflux to methyl acetate feed the conversion rate of methyl acetate slowly increased and energy consumption linearly increased，and the optimum volume ratio of reflux to methyl acetate feed was 3.0. Due to a slow decrease of conversion rate of methyl acetate with the increase of space velocity，a higher space velocity would be favorable in increasing processing capacity. A bigger fixed reactor can improve the conversion rate of methyl acetate at the outlet of the reactor but is not necessarily conducive to higher total conversion rate. This new technology can realize the hydrolysis of methyl acetate with high conversion rate and is better than traditional single column catalytic distillation.

Key words: catalytic distillation coupled with side reactor, methyl acetate, hydrolysis