The Utilization of Waste Activated Bleaching Earth in Biodiesel Production: Optimization by Response Surface Methodology


Gül Ö., Tüter M. , Aksoy H.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, cilt.32, ss.1812-1820, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 32 Konu: 19
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1080/15567030902882984
  • Dergi Adı: ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
  • Sayfa Sayıları: ss.1812-1820

Özet

The waste oil adsorbed on activated bleaching earth was evaluated as a raw material for biodiesel production. Alcoholysis reactions of waste oil extracted from activated bleaching earth using n-hexane were conducted by NaOH as catalysts. The reactions were performed at a temperature range from 50 to 60 degrees C with catalyst (1-2% based on oil weight) at oil:alcohol molar ratios of 1:5-1:7. Based on optimization by response surface methodology, the critical alcoholysis conditions for 30 min reaction time giving maximum 85% methyl ester content were determined as follows: temperature 57.3 degrees C, catalyst 2.1% (based on oil weight), and oil/methanol molar ratio 1/6.3.