A Kinetic Approach to the Temperature-Programmed Pyrolysis of Turkish Oil Shales in a Fixed Bed Reactor: Determination of Kinetic Parameters for n-Paraffins and 1-Olefins Evolution
Makaleler > Tam Makale · 2002
Yazarlar: Levent BALLİCE, MÜMİNE YÜKSEL
Energy & Fuels, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Wos, 2002, cilt 16, ss 96-101
DOI: 10.1021/ef010077o
Özet
The thermal degradation of both Göynük oil shales (GOS) and Beypazari oil shales (BOS) has been investigated under nonisothermal conditions. The recovery of organic carbon as 1-olefins and n -paraffins was determined by temperature-programmed pyrolysis of oil shales. A fixed bed reactor under argon flow was used to pyrolyze small samples of oil shales. A special gas-phase sampling technique was used to determine the composition of products eluted from the reactor as a function of temperature and time. Hydrocarbon evolution data have been analyzed by Coats-Redfern and Chen-Nuttall combinations. It must be emphasized that the evaluation of temperature-programmed pyrolysis data by combined use of Coats-Redfern and Chen-Nuttall methods provide satisfactory mathematical approaches to obtain kinetic parameters for 1-olefins and n -paraffins formation from thermal degradation of Turkish oil shales. Using this method, it is possible to identify every stage of pyrolysis and derive values for kinetic parameters.