Application of the Gas Physical Adsorption in the Research of Petroleum Refining and Chemical Catalysts
The mass transfer capacity of catalytic materials,which are involved in more than 90％of petrochemical processing,is directly related to their catalytic performance.Therefore,the specific surface area and pore structure,as the important indexes characterizing mass transfer capacity,are key physical parameters that should be closely monitored in research,production and quality control of catalytic materials.Currently,gas physical adsorption is the main technique for characterizing the specific surface area and pore structure of petrochemical catalytic materials.This paper mainly introduces the gas physical adsorption method and its major progress.Moreover,some practical examples regarding pore modulation,hierarchical-pore construction,research of carrier performance and analysis of catalyst deactivation are cited to illustrate the application of gas physical adsorption method in the characterization of petrochemical catalytic materials.On this basis,the future development trend of the method is prospected
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