CAJ | 학술논문

通过改变硝酸胶溶剂的用量，采用挤条成型工艺制备了一系列ZSM-5分子筛催化剂。以甲醇制丙烯为模型反应，在450℃、0.1MPa、甲醇空速为1h-1的条件下，对催化剂性能进行评价。采用颗粒强度测试仪、X射线衍射(XRD)、氨气-程序升温脱附(NH3-TPD)等手段对其物理化学性质进行表征，结果表明，随成型过程中硝酸用量的增加，分子筛颗粒强度呈现先增大后减小的趋势，分子筛总酸量不断增加。
통과개변초산효용제적용량，채용제조성형공예제비료일계렬ZSM-5분자사최화제。이갑순제병희위모형반응，재450℃、0.1MPa、갑순공속위1h-1적조건하，대최화제성능진행평개。채용과립강도측시의、X사선연사(XRD)、안기-정서승온탈부(NH3-TPD)등수단대기물이화학성질진행표정，결과표명，수성형과정중초산용량적증가，분자사과립강도정현선증대후감소적추세，분자사총산량불단증가。
A series of ZSM-5 zeolite catalyst samples had been prepared with changing nitric acid dosage as peptizator using an extrusion molding method. Taking the methanol to propylene as a model reaction, at 450℃, 0.1MPa, 1h-1, the performances of the catalysts were evaluated. The zeolites were characterized by means of particle strength tests, X-ray diffraction spectrum (XRD) and temperature pro-grammed desorption (NH3-TPD). The results showed that with increasing nitric acid dosage, the mechanical strength of the zeolite catalyst increased at first and then decreased, the total acid of the zeolite catalyst were enhanced.