Effect of clay on crude oil combustion by thermal analysis techniques


KÖK M. V.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, vol.84, no.2, pp.361-366, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 84 Issue: 2
  • Publication Date: 2006
  • Doi Number: 10.1007/s10973-005-7153-2
  • Title of Journal : JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Page Numbers: pp.361-366
  • Keywords: clay, crude oil, differential thermal analysis, heating rates, reaction kinetics, thermal analysis, thermogravimetry, KINETICS, OXIDATION, SAMPLES

Abstract

This research was aimed to investigate the role of clay on the combustion and kinetic behavior of crude oils in limestone matrix. For this purpose, simultaneous TG (thermogravimetry) and DTA (differential thermal analysis) experiments were performed at three different heating rates as 10-15 and 20 degrees C min(-1), respectively. A uniform trend of decreasing activation energies was observed with the addition of clay. It was concluded that clays surface area affects the values of Arrhenius constant, while it is the catalytic properties of clay, which lower the activation energies of all the reactions, involved in the combustion process.