Study of Lifetime and Selectivity Behaviour of Nanostructure Alumina-Supported CrOx Catalyst during O-VOCs Oxidative Removing from the Polluted Air

سال انتشار: 1390
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 563

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شناسه ملی سند علمی:

ICHEC07_731

تاریخ نمایه سازی: 25 فروردین 1394

چکیده مقاله:

The deactivation and selectivity behavior of nanostructure CrOx/γ-Al2O3 catalyst in catalytic oxidation of O-VOCs (ethyl acetate) was studied. The polluted air was simulated and the catalyst was tested in a course of 50 h time-on-stream in a packed bed catalytic micro reactor. Characterization of fresh and used catalysts was carried out using FT-IR, XRD, SEM and EDX methods. Analyzing of oxidation products using GC and GC-MS methods, showed that formationof byproducts increased by deactivation of catalyst and therefore approximate catalyst selectivity behavior during catalyst lifetime of 50 h was determined. Comparing the testing results of this catalyst and that of the industrial Pt/Al2O3 catalyst showed that prepared catalyst can be suitable for substitution with the expensive pt/Al2O3 catalyst in environmental applications.

نویسندگان

a niaei

Department of Applied Chemistry and Chemical Engineering, Faculty of Chemistry, University of Tabriz,Tabriz, Iran

d salari

Department of Applied Chemistry and Chemical Engineering, Faculty of Chemistry, University of Tabriz,Tabriz, Iran

h afshary

Department of Applied Chemistry and Chemical Engineering, Faculty of Chemistry, University of Tabriz,Tabriz, Iran

s.a hosseini

Department of Applied Chemistry and Chemical Engineering, Faculty of Chemistry, University of Tabriz,Tabriz, Iran

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