Abstract:

The main objective of this study is preparation of Activated carbon (AC) from Rice husk. This AC is used to support for preparation of catalyst of 35wt% Cr/RHAC and catalyst is characterization by X-ray diffraction (XRD), surface area (SA), pore size distribution (PSD) and Thermo gravimetric analysis (TGA). Dehydration of 1- phenylethanol to styrene over 30wt% Cr/RHAC catalyst, temperature range 246oC to 267oC in the vapor phase reaction. The conversion of 1- phenylethanol to styrene is 95% due to well dispersion of Chromia on RHAC support small particle size of Chromia and more acidic strength. AC prepared from rice husk show good SA 312 m2g-1 and PSD 3.13nm. So that catalyst shows very good activity and selectivity towards the desired product. The activity of catalyst remains same during the time on stream due to high porosity and acidity.

Description:

.