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可逆反应是在同一反应条件下既能向正反应方向进行同时也能向逆反应方向进行的反应,工业上的许多反应,如合成氨反应、硫酸工业的第二步反应(二氧化硫转化成三氧化硫)都是可逆反应。可逆反应是不能进行到底的反应,反应进行到什么程度即原料转化了多少这就是转化率的问题。反应进行到最大程度时原料转化率最大,此时可逆反应达到了化学平衡状态。为了提高转化率,需要结合平衡移动原理从温度、浓度、压强等多个角度去考虑提高转化率的方法,本文集中阐
Reversible reaction is under the same reaction conditions both forward and reverse reactions can be carried out at the same time, the reaction, many of the reactions in the industry, such as ammonia reaction, sulfuric acid industry in the second step (sulfur dioxide into sulfur trioxide) Are reversible reaction. Reversible reaction can not be carried out in the end the reaction, the reaction to what extent the conversion of raw materials how much is the conversion rate of the problem. The maximum conversion of raw materials, the maximum conversion rate, then the reversible reaction reached a state of chemical equilibrium. In order to improve the conversion rate, it is necessary to consider the principle of balance shift to consider ways to increase the conversion rate from the aspects of temperature, concentration and pressure.