CAJ | 학술논문

采用水热合成法制备了锆硅介孔分子筛催化剂，并通过XRD、N2吸附-脱附进行了表征，表明其具有介孔结构。以乙醇脱水制乙烯为模型反应，考察了催化剂的活性。结果表明，在锆硅摩尔比为1∶2、焙烧温度440℃、焙烧时间3h所制备出的催化剂，在脱水温度310℃，进料空速0.7h-1，乙烯收率在99%以上时，进料可用低浓度乙醇。
채용수열합성법제비료고규개공분자사최화제，병통과XRD、N2흡부-탈부진행료표정，표명기구유개공결구。이을순탈수제을희위모형반응，고찰료최화제적활성。결과표명，재고규마이비위1∶2、배소온도440℃、배소시간3h소제비출적최화제，재탈수온도310℃，진료공속0.7h-1，을희수솔재99%이상시，진료가용저농도을순。
Mesoporous Zr/Si materials was synthesized under hydrothermal conditions,and characterized by XRD and nitrogen adsorption-desorption.The results showed that the obtained materials were of the characteristics of mesoporous molecular sieves. Mesoporous Zr/Si was used as catalyst in the procedure of alcohol into ethylene.Results indicated that molar ratio of Zr/Si was 1∶2,calcination temperature was 440℃, calcination time was 3h, reaction temperature was 310℃,and feed space velocity was 0.7h-1, the catalytic performance was better than the others and yield of ethylene was higher than 99%.Low concentration ethanol could be used as feed.