摘要
通过正交试验,发现在用无水醋酸钠热解脱螗制取甲烷时,增加碱石灰中氢氧化钠含量、减少氧化钙的含量,可以提高甲烷的纯度和产率。无水醋酸钠、氢氧化钠和氧化钙的最佳质量比为3:(5～6):1,所得甲烷的纯度和产气速度可以满足教学实验的要求。不纯甲烷经浓硫酸洗气后,可以排除副产物对甲烷性质试验的干扰。
By orthogonal test, it is found that the best ratio of sodium acetate, sodium hydroxide and calcium oxide for making methane is 3: (5～6): 1. The reaction rate and purity of methane are high enough for demonstration test. The imprity in methane such as ethylene and acetone can be washed out by concentrated sulphuric acid.
关键词
甲烷
醋酸钠
热解法
纯度
Acetic acid(P)
Sodium compounds
Carboxylates
Thermolysis
Decarboxylation
Experiments
Multicomponent system
Generalized mass
Proportion
