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ZSM-5沸石在甲醇气相胺化反应中具有很高的活性和选择性.在375～450℃,NH3/CH3OH分子此为2.5～4.0,空速(液)为3.0～6.0的条件下,甲醇转化率为99.6.～100%.甲胺的空时收率为0.63～1.34克/克催化剂,小时.目前工业还在使用的r-Al2O3催化剂的甲胺空时收率只有0.394克左右.HZSM-5和2A-521催化剂的活性是r-Al2O3的2～3倍.HZSM-5和ZSM-5的选择性,即甲胺在三种胺中所占的克分子百分率是r-Al2O3的4倍.在450℃,空速6,NH3/CH3OH分子比4时,ZSM-5和HZSM-5具有显著的择形催化效应.
ZSM-5 zeolite has a high activity and selectivity in gas phase amination of methanol.Under the condition of 375-450 ℃, NH3 / CH 3 OH molecule is 2.5-4.0 and space velocity (liquid) is 3.0-6.0, methanol The yield of methylamine is 0.63 ~ 1.34 g / g catalyst, the current industrial use of r-Al2O3 catalyst methylamine space-time yield of only about 0.394 grams.HZSM -5 and 2A-521 were 2 to 3 times more active than r-Al2O3.The selectivity of HZSM-5 and ZSM-5, that is, the percentage of methylamine in the three amines, was 4 Times.At 450 ℃, space velocity 6 and NH3 / CH 3 OH ratio 4, ZSM-5 and HZSM-5have significant shape-selective catalysis.