Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride

Brazilian Journal of Chemical Engineering

A. T. Georgieva²  A. I. Anastasov¹  V. A. Nikolov¹ 

[1] ,Bulgarian Academy of Sciences Institute of Chemical Engineering Sofia,Bulgaria

关键词: Catalyst deactivation;    Experimental;    Fixed-bed;    Identification problem;   

DOI  :  10.1590/S0104-66322008000200013

来源: SciELO

【 摘 要 】

The behavior of a high-productive V2O5-TiO2 (anatase) supported O 4-28 catalyst for oxidation of o-xylene to phthalic anhydride was investigated in the first three years of its exploitation in industry. By using a suitable mathematical model, an identification problem was solved and activation profiles of the catalyst along a fixed bed located in the tubes of an industrial reactor were determined. Experimental temperature regimes and yields of the main and side products for different periods of the catalyst life were used. The proper technological regimes providing for a maximum yield according to the requirements of the catalyst producer company were defined.

【 授权许可】

CC BY   
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