中国石油大学学报（自然科学版）2024，Vol.48Issue(1)：197-205,9.DOI:10.3969/j.issn.1673-5005.2024.01.022
快速合成Cu-SAPO-34分子筛及其甲醇制烯烃催化性能
Rapid synthesis of Cu-SAPO-34 zeolite and MTO catalytic performance
摘要
Abstract
Cu-SAPO-34 molecular sieves were rapidly synthesized with introduced copper zeolite seed as copper source for 10 h,which were compared with the traditional hydrothermal synthesis method and copper amine complex introduced copper source.Meanwhile,the structure and methanel to olefin(MTO)catalytic performance of the sample were characterized by XRD,SEM,IR,TPD and micro reaction.The results show that the Cu-SAPO-34 molecular sieve with a crystallinity of 86.24%and solid yield of 94.65%could be prepared by rapid synthesis method in 10 h,and the sum of ethylene and pro-pylene selectivity reaches 81.26%.Compared with the addition of copper amine complex,the introduction of copper by adding copper seed is more suitable for rapid synthesis and avoids the problem that copper cannot combine with molecular sieve framework.Nanosized Cu-SAPO-34 molecular sieves with grain diameter of 470 nm could be rapidly synthesized by ad-justing the properties and adding amount of Cu-SAPO-34 seed,in which the solid yield is 96.72%,and the ethylene and propylene selectivity is 86.24%.关键词
甲醇制烯烃/Cu-SAPO-34 分子筛/快速合成/含铜分子筛晶种Key words
methanel to olefin/Cu-SAPO-34 molecular sieve/rapid synthesis/copper zeolite seed分类
化学化工引用本文复制引用
张强,周洲,李建祥,田梦阳,于梦云..快速合成Cu-SAPO-34分子筛及其甲醇制烯烃催化性能[J].中国石油大学学报（自然科学版）,2024,48(1):197-205,9.基金项目
山东省重点研发计划重大科技创新工程项目(2021ZLGX06) （2021ZLGX06）
