Clay concentration and heating rate effect on crude oil combustion by thermogravimetry

Kok M. V.

FUEL PROCESSING TECHNOLOGY, cilt.96, ss.134-139, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 96
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.fuproc.2011.12.029
  • Dergi Adı: FUEL PROCESSING TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.134-139
  • Anahtar Kelimeler: Heavy crude oil, Clay, Thermal analysis, Kinetics, THERMAL-ANALYSIS TECHNIQUES, IN-SITU COMBUSTION, REACTION-KINETICS, PYROLYSIS, OXIDATION, DSC
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this research, the effect of heating rate and different clay concentrations on heavy oil combustion was investigated by thermogravimetry (TG-DTG). In TG-DTG experiments, two main distinct reaction regions were identified in all of the crude oil + limestone mixtures; known as low temperature oxidation (LTO) and high temperature oxidation (HTO) respectively. It was observed that addition of clay to porous matrix (limestone + heavy oil) significantly affected the thermal characteristics and kinetics of crude oil. It was also observed that heating rate affected the reaction region intervals, peak and burn-out temperatures. Kinetic analysis of the samples was determined and it was observed that activation energies generated for the high temperature oxidation region for crude oil and crude oil/clay mixtures are in the range of 48.5-151 kimol(-1) at three different heating rates (C) 2011 Elsevier B.V. All rights reserved.