Multiwavelength absorbance ratio difference spectrophotometry as a new method to determine two-mixed system was used injection.
多波长吸收度比值差法是一种可对多种混合组分同时测定的新的分光光度法.
The higher the absorbance ratio of Bronsted acid peak to Lewis acid peak ( i.e.AB/ AL) measured by infra-red absorption spectrum, the higher is the catalyst activity. The results show clearly that the Bronsted acid plays a dominant role in catalytic cracking reaction.
用红外光谱法测定了Bronsted酸峰与Lewis酸峰的吸光度(A)的比值,发现活性高的催化剂,其A B/A L值也高,说明在催化裂化反应中,Bronsted酸起主导作用。
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