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(Cu·Zn)_6·Al_2·(OH)_(16)·CO_3·4H_2O分解所得的催化剂,在合成甲醇中具有较高的活性。钾对这种催化剂的催化性能有一定的影响。经过实验,发现用浸渍法添加钾时,如干燥条件温和,钾在催化剂上分布不均,但在激烈的干燥条件下,钾的分布则趋于均一。所得的加钾催化剂,对高碳醇(本文中系指C_6以下的高于甲醇的醇类)具有较高的选择性。此外,还观察到反应器中的CO_2不利于高碳醇的合成。
(Cu · Zn) _6 · Al_2 · (OH) _ (16) · CO_3 · 4H_2O decomposition of the catalyst obtained in the synthesis of methanol with high activity. Potassium has a certain influence on the catalytic performance of this catalyst. After the experiment, it was found that when potassium is added by the impregnation method, potassium is unevenly distributed on the catalyst if the drying conditions are mild, but the distribution of potassium tends to be uniform under intense drying conditions. The resulting potassium-added catalyst has a higher selectivity for higher alcohols (referred to herein as methanol above C_6). In addition, CO 2 in the reactor was also observed to be detrimental to the synthesis of higher alcohols.