Heterogeneous Catalyst HZSM5 in Biodiesel Production from Rapeseed Oil in Batch Process

Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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JR_IJEE-8-2_001

تاریخ نمایه سازی: 20 آبان 1397

Abstract:

In this paper, HZSM5 zeolite was synthesized through reflux method on support material CaO (25, 35and 45 wt%) in two specific methods: microwave and impregnation at high temperature. The zeolitecatalyst was modified with impregnation of NaOH (2, 4, 8, 12 wt%) at room temperature. Themodified zeolite was used in transesterification of rapeseed oil with methanol in abatch catalyticprocess.In transesterification of rapeseed oil, the catalyticactivities of HZSM5, NaZSM5, KZSM5were considered. The prepared catalysts were characterized by several techniques such as X-raydiffraction (XRD), Brunauer Emmett Teller (BET) surface area and also the surface image wasscanned by scanning electron microscopy (SEM). The parameters affecting on biodiesel yield atoptimum reaction conditions were investigated. The maximum yield was achieved with 8wt% ofNaOH loaded on HZSM5 at reaction temperature of 65˚C, reaction time of 12 hours and catalyst/oilmass ratio of 9. Also the yield of CaO loaded with impregnation at high temperature was more desiredthan CaO loaded with microwave. Meanwhile the catalytic activity of HZSM5, NaZSM5 and KZSM5was nearly zero; and the catalytic activity of modified zeolite was HZSM5> NaZSM5> KZSM5subsequently

Authors

m Mohammadpour

Biotechnology Research Laboratory, Department of Chemical Engineering, Babol Noshirvani University of Technology, Shariati Ave., Babol, Iran

g.d Najafpour

Biotechnology Research Laboratory, Department of Chemical Engineering, Babol Noshirvani University of Technology, Shariati Ave., Babol, Iran

m Rahimnejad

Biotechnology Research Laboratory, Department of Chemical Engineering, Babol Noshirvani University of Technology, Shariati Ave., Babol, Iran

m kiakojouri

Biotechnology Research Laboratory, Department of Chemical Engineering, Babol Noshirvani University of Technology, Shariati Ave., Babol, Iran