Solid State Science and Technology, Vol. 17, No 2 (2009) 189-196

ISSN 0128-7389

Corresponding Author: anita_ramli@petronas.com.my

189

EFFECT OF DOPANT ON THE PHYSICOCHEMICAL PROPERTIES OF THE

Sb-V CATALYSTS FOR PROPANE AMMOXIDATION TO ACRYLONITRILE

Anita Ramli1, Asna Rasyidah Abdul Hamid2,

Suhaina Mohd Ibrahim3 and Farinaa Md Jamil3

1Chemical Engineering Department, Universiti Teknologi PETRONAS,

Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia

2PPSKTM, Fakulti Sains dan Teknologi, Universiti Kebangsaan Malaysia,

43600 Bangi, Selangor, Malaysia

3Advanced Materials Research Centre (AMREC), SIRIM Berhad, Lot 34, Jalan Hi-Tech

2/3, Kulim Hi-Tech Park, 09000 Kulim, Kedah, Malaysia

 

ABSTRACT

In the present work, the influence of Ti, Zr-Ce and Fe-Zn as dopant in Sb-V catalyst for propane ammoxidation to acrylonitrile was investigated. These catalysts were prepared by slurry method, dried and later calcined in air at 350-600 oC for a total of 10 h. The activity of all catalysts was tested in a fixed-bed microreactor with online gaschromatography at 420 oC with reaction feed (%v/v) of 5.8:7:17.4 (propane, ammonia, oxygen). Doping of Sb-V with Ti, Zr-Ce and Fe-Zn was found to improve the conversion of C3H8 but decreases the selectivity to ACN due to changes in the physicochemical properties of the Sb-V catalysts.

 

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