Addition of Pore-Forming Agents and Their Effect on the Pore Architecture and Catalytic Behavior of Shaped Zeolite-Based Catalyst Bodies  

作　　者：Nikolaos Nikolopoulos Luke A.Parker Abhijit Wickramasinghe Oscar van Veenhuizen Gareth Whiting Bert M.Weckhuysen 

机构地区：[1]Inorganic Chemistry and Catalysis group,Debye Institute for Nanomaterials Science&Institute for Sustainable and Circular Chemistry,Utrecht University,3584 CG Utrecht,The Netherlands [2]TNO Environmental Modelling,Sensing and Analysis,Princetonlaa 6,3584 CB Utrecht,The Netherlands

出　　处：《Chemical & Biomedical Imaging》2023年第1期40-48,共9页化学与生物医学影像（英文）

基　　金：funding from the European Union’s EU Framework Program for Research and Innovation Horizon 2020 under Grant Agreement No.721385(MSCA-ETN SOCRATES,https://etn-socrates.eu/)and the US Army Research Office.

摘　　要：Porous materials,such as solid catalysts,are used in various chemical reactions in industry to produce chemicals,materials,and fuels.Understanding the interplay between pore architecture and catalytic behavior is of great importance for synthesizing a better industrial-grade catalyst material.In this study,we have investigated the modiffcation of the pore architecture of zeolite-based aluminabound shaped catalyst bodies via the addition of different starches as pore-forming agents.A combination of microscopy techniques allowed us to visualize the morphological changes induced and make a link between pore architecture,molecular transport,and catalytic performance.As for the catalytic performance in the methanol-to-hydrocarbons(MTH)reaction,pore-forming agents resulted in up to∼12%higher conversion,an increase of 74%and 77%in yield(14%and 13%compared to 8.6%and 7.7%of the reference sample in absolute yields)toward ethylene and propylene,respectively,and an improved lifetime of the catalyst materials.

关 键 词：Shaped catalyst bodies Porogens METHANOL-TO-HYDROCARBONS Pore architecture Coke formation Molecular transport Visualization 

分 类 号：O643.3[理学—物理化学]