Advances in Characterization Techniques for Petroleum Refining and Chemical Catalysts Based on Structure-Activity Relationship Studies
The R&D pattern of new catalysts is changing from experimental design and trial-and-error mode to theoretical design and guide.The investigation of the structure-activity relationship,which is established based on the composition and structure information of the catalysts and their corresponding reaction performances,provides important information for catalyst design.A variety of ultra-high resolution electron microscopies,surface analysis,nuclear magnetic resonance,spectroscopic characterization,and synchrotron radiation-based high-resolution spectroscopies are significant approaches to investigate the active centers of catalysts.This paper reviews the development of characterization techniques for catalysts over the past 20 years and the investigation methods for structure-activity relationships,and emphatically introduces the progress of atomic scale and in situ characterization techniques,and the application of characterization techniques in research of typical catalysts such as molecular sieves,hydrogenation catalysts,reforming catalysts,PDH catalysts,and desulphurization adsorbents.It is expected to provide guidance and inspiration for researchers to better investigate the structure-activity relationship of catalysts.
catalystin situ characterizationstructure-activity relationshippetroleum refining and chemical industry
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