提高流化床分子筛催化剂耐磨性能研究进展  

Advanceson improving the attrition resistance of molecular sieve catalysts for fluidized bed

作　　者：杨杰[1] 刘创 于万金 林胜达 刘武灿 程党国[1] 陈丰秋[1] Yang Jie;Liu Chuang;Yu Wanjin;Lin Shengda;Liu Wucan;Cheng Dangguo;Chen Fengqiu(College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310030,Zhejiang,China;Lan Qi Sheng Ke(Zhejiang)New Material Co.,Ltd.,Hangzhou 311228,Zhejiang,China;State Key Laboratory of Fluorinated Greenhouse Gases Replacement and Treatment,Zhejiang Research Institute of Chemical Industry,Hangzhou 310023,Zhejiang,China)

机构地区：[1]浙江大学化学工程与生物工程学院,浙江杭州310030 [2]蓝启生科(浙江)新材料有限公司,浙江杭州311228 [3]浙江省化工研究院含氟温室气体替代及控制处理国家重点实验室,浙江杭州310023

出　　处：《工业催化》2023年第11期26-35,共10页Industrial Catalysis

摘　　要：分子筛催化剂是当前研究较多的一类流化床催化剂,工业上通常采用双铝基溶胶、硅铝复合溶胶、磷铝溶胶等作为粘结剂,通过喷雾造粒制备分子筛类微球催化剂。流化床工艺不仅要求催化剂具有良好的催化性能,还要有较好的耐磨性能、良好的球形度和适宜的粒径分布以满足实际的工业生产。粘结剂和载体的选择、浆液的制备工艺、喷雾造粒机的进口和出口温度、雾化器转速和成型的后处理都会对催化剂耐磨性能、粒径分布、球形度和催化性能产生巨大影响。本文以工业研究较为成熟的FCC催化剂和MTO催化剂为例,从催化剂浆液组分优化、喷雾造粒成型过程优化以及催化剂后处理优化三个方面总结当前流化床分子筛催化剂耐磨性能研究进展,为其它耐磨流化床催化剂的开发提供一定的参考。Molecular sieve catalysts are one of the most studied fluidized bed catalysts.Molecular sieve microsphere catalysts are typically prepared by spraydrying processes,which used double aluminum-based sol,silica-aluminum composite sol,phosphorus-aluminum sol,etc.as binders in industry.The fluidized bed catalysts required not only good catalytic performance,but also superiorattrition resistance,favourable sphericity and appropriate particle size distribution to match the actual industrial manufacturing.The attrition resistance,particle size distribution,sphericity and catalytic performance of molecular sieve catalysts are significantly affected by the selection of binders and supports,the slurry preparation processes,the inlet and outlet temperatures of the spraydrying processes,the atomizer speed and the post-processing of the catalysts.The current research progresseson i mproving the attrition resistance of fluidized bed molecular sieve catalysts(FCC catalysts and MTO catalysts are taken as examplesin this paper)are summarized from three aspects including optimization of catalyst slurry components,optimization of spraydrying processes and post-processing of catalysts,and provide some references for the research&development of other attrition resistant fluidized bed catalysts.

关 键 词：催化剂工程 分子筛催化剂 流化床工艺 粘结剂 喷雾造粒 耐磨性能 

分 类 号：TQ426.6[化学工程] O643.36[理学—物理化学]