《Table 3 Me thanol conve rsion, product distribution and C4hydroge n transfe r inde x of for MTP ove

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《H-ZSM-5分子筛硅铝比对其催化的甲醇转化丙烯选择性的影响（英文）》

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Since all the synthesized H-ZSM-5 zeolites exhibit the M FI structure（Figure 1）w ith high crystallinity（Table 1），the incomplete initial methanol conversion over HZ-5（x）samples of x>1600 should be ascribed to their insufficient acid sites on the catalyst surface.The conversion of methanol over HZ-5（x）of x≤200 remains steady over the reaction time studied（130 min），suggesting a sustained activity of H-ZSM-5 zeolites w ith a low silicon to aluminum ratio.