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通过测定煤的着火点研究了不同催化剂对大同烟煤和晋城无烟煤的催化着火的影响。结果表明,催化剂化学组成是决定催化作用大小的一个重要的因素,具有同一碱金属离子,不同阴离子的催化剂酸性越强,催化作用越弱,其催化活性顺序为OH~->CO_3~(2-)>Cl~->SO_4~(2-);具有同一阴离子,不同碱金属或碱土金属阳离子的催化作用可用“电子转移学说”来解释,其催化作用的大小,随相应的碱金属,碱土金属的第一电离能的减少而增加。
The effects of different catalysts on the catalytic ignition of Datong bituminous coal and Jincheng anthracite were investigated by measuring the ignition point of coal. The results show that the chemical composition of the catalyst is an important factor determining the size of the catalyst. The stronger the acidity of the catalyst with the same alkali metal ion and different anion is, the weaker the catalytic activity is. The order of the catalytic activity is OH ~ -> CO_3 ~ (2- )> Cl ~ -> SO_4 ~ (2-); with the same anion, different alkali metal or alkaline earth metal cation can be used “electron transfer theory” to explain the size of its catalytic role with the corresponding alkali metal, alkaline earth metal The first ionization energy decreases.