Application of Wavelength Dispersion X-Ray Fluorescence Spectrometry in the Research of Petroleum Refining and Chemical Catalysts
The development of X-ray fluorescence spectrometry(XRF)is reviewsed,the principle and procedure of XRF analysis are summarized,the components of spectrometer and the latest development of wavelength dispersive XRF(WD-XRF)are introduced from the aspects such as X-ray tube,detector,and angular instrument,and the application and significance of XRF in elemental analysis of catalysts are expounded.Moreover,the method of semi-quantitative analysis,quantitative analysis,and sample preparation such as powder pellet technology and fusion preparation technology of XRF are presented,as well as the influence of pretreatment on accuracy of quantitative analysis by XRF.The application and progress of WD-XRF for the characterization of petroleum refining and chemical catalysts are reviewed in the aspects of fluid catalytic cracking catalysts,hydrogenation catalysts,reforming catalysts and zeolites,and the future improvement of XRF is prospected.
wavelength dispersion X-ray fluorescence spectrometrypetroleum refining and chemical catalystelemental analysisquantitative analysisapplication
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