分子筛骨架铝原子分布研究进展  

RESEARCH PROGRESS OF MOLECULAR SIEVE SKELETON ALUMINUM ATOM DISTRIBUTION

作　　者：吴一鹏 段绘州 任朝秀 侯春生 吴韬 Wu Yipeng;Duan Huizhou;Ren Chaoxiu;Hou Chunsheng;Wu Tao(Beijing Key Laboratory of Enze Biomass Fine Chemicals,College of New Materials and Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617;Capital Medical University;CNPCO and Gas Management Zone in the Tarim Oilfield Tower)

机构地区：[1]北京石油化工学院新材料与化工学院,恩泽生物质精细化工北京市重点实验室,北京102617 [2]首都医科大学 [3]中国石油塔里木油田塔中采油气管理区

出　　处：《石油炼制与化工》2024年第2期36-42,共7页Petroleum Processing and Petrochemicals

基　　金：北京市科技新星计划项目(Z211100002121024)。

摘　　要：分子筛由于具有大量可调变的酸性位点以及良好的择形性和水热稳定性等优点而被广泛应用于石油化工领域的酸催化反应。分子筛骨架铝原子的位置决定了其酸位点的分布,因而骨架铝原子的分布(包括所处的空腔体积、化学环境以及两个铝原子的距离)对其酸催化性能(反应路径及反应速率)影响很大。由于分子筛的合成涉及一个复杂晶化的过程,影响骨架铝原子分布的因素众多,如起始物料的种类和浓度、晶化条件、杂原子以及后处理方法等,科研人员对骨架铝原子调控方法展开了大量的研究。基于此,综述了相关研究成果,以期推动实现以功能为导向的特定铝原子分布分子筛的定向合成。Molecular sieves have been widely used in acid-catalyzed reactions of petrochemical industry because of their variable acidic sites,good shape selectivity and hydrothermal stability.The distribution of acid sites is determined by the position of aluminum atom in the molecular sieve framework,therefore,the distribution of skeleton aluminum atoms(including the pore volume,chemical environment of skeleton aluminum location,the distance between two aluminum atoms)has a great influence on its acid catalytic performance(reaction pathway or reaction rate).Because the synthesis of molecular sieve involves a complex crystallization process,there are many factors affecting the distribution of skeleton aluminum atoms,such as the kind and concentration of starting materials,crystallization conditions,introduction of heteroatoms,and post-treatment methods,etc.Many researchers have done a lot of research on regulation of skeleton aluminum atoms.Based on this,the related research results were reviewed in order to promote the oriented synthesis of specific aluminum atom-distributed molecular sieves.

关 键 词：分子筛 骨架铝原子 酸位点 晶化 定向合成 

分 类 号：TQ426[化学工程]