CAJ | 학술논문

针对目前 FCC 催化剂制备方法工艺流程复杂的现状，进行催化剂后处理工艺条件的探索。直接以 NaY 分子筛与拟薄水铝石、铝溶胶、高岭土打浆混合，喷雾干燥得到催化剂粉体，对该催化剂粉体进行基本性质的表征。利用已经制备好未经改性的催化剂进行一次焙烧和一次稀土交换，再分别采用三次焙烧和三次常温（＜90℃）铵盐交换、两次焙烧和两次高温（＞90℃）铵盐交换，探索了优化的工艺条件，两种铵盐交换方法得到的催化剂中 Na2 O 质量分数均达到0．3％以下。
침대목전 FCC 최화제제비방법공예류정복잡적현상，진행최화제후처리공예조건적탐색。직접이 NaY 분자사여의박수려석、려용효、고령토타장혼합，분무간조득도최화제분체，대해최화제분체진행기본성질적표정。이용이경제비호미경개성적최화제진행일차배소화일차희토교환，재분별채용삼차배소화삼차상온（＜90℃）안염교환、량차배소화량차고온（＞90℃）안염교환，탐색료우화적공예조건，량충안염교환방법득도적최화제중 Na2 O 질량분수균체도0．3％이하。
Due to the complexity of present FCC catalyst preparation process,catalyst post-treat-ment technology was explored. NaY zeolite,pseudo-boehmite,aluminum sol and kaolin were mixed and spray-dried into catalyst microsphere NaY35. The basic properties of the unmodified NaY35 were char-acterized by XRF,XRD,BET. The NaY35 catalyst was treated by once calcination and then once rare earth ion exchange. The treated NaY35 was used as a starting precursor. The precursor was then trea-ted by three times calcinations and three times ammonium ion exchanges at normal temperature (<90 ℃),and two times calcinations and two times ammonium ion exchanges at high temperature (>90 ℃),respectively to explore the optimized post-treatment conditions for FCC catalyst.The test re-sults indicate that the Na2 O contents in both prepared catalysts are less than 0.3%.