Zeolitic coatings and their potential use in catalysis
Zeolitic coatings and their potential use in catalysis
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DOI：
10.1016/s1387-1811(97)00061-9
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发表时间：
1998-05
影响因子：
5.2
通讯作者：
J. Jansen;J. Koegler;H. Bekkum;H. Calis;C. M. Bleek;F. Kapteijn;J. Moulijn;E. Geus;N. V. D. Puil
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文献类型：
--
作者：
J. Jansen;J. Koegler;H. Bekkum;H. Calis;C. M. Bleek;F. Kapteijn;J. Moulijn;E. Geus;N. V. D. Puil
沸石涂层的形成及其性能，如晶体的厚度、连续性和取向，都与前驱相的存在和宏观组织有关。基于这一观点，可以制备预先成型的沸石涂层，它既可以是活性催化剂本身，也可以是现有催化剂上的惰性薄膜。它们可以作为沸石膜应用于低压降反应器、吸附装置、催化蒸馏装置和综合反应分离系统中。本文讨论了沸石涂层在膜结构、NOx选择性催化转化、催化剂相惰性膜和模型结构催化剂系统中的涂层制备和性能的具体方面。
The formation of zeolitic coatings and their properties, such as the thickness, continuity and orientation of the crystals, are related to the presence and macro-organization of a precursor phase. Based on this view, preshaped zeolitic coatings can be prepared which may be either active catalysts themselves or an inert thin membrane on an existing catalyst. They can be applied in low pressure drop reactors, in adsorption units, in catalytic distillation units and in integrated reaction separation systems as zeolitic membranes. Coating preparation and particular aspects of the performance of the zeolitic coatings in a membrane configuration, in selective catalytic conversion of NOx, as an inert membrane on a catalyst phase, and model structured catalyst systems are discussed.