THERMODYNAMIC INDEXES OF IRON-CONTAINING CATALYSTS AND THE KINETICS OF HYDROGENATION OF HIGH-VISCOSITY KARAZHAMBAS CRUDE-OIL

Citation
At. Ordabayeva et al., THERMODYNAMIC INDEXES OF IRON-CONTAINING CATALYSTS AND THE KINETICS OF HYDROGENATION OF HIGH-VISCOSITY KARAZHAMBAS CRUDE-OIL, Petroleum chemistry, 35(4), 1995, pp. 332-340
Citations number
15
Categorie Soggetti
Energy & Fuels","Engineering, Chemical","Engineering, Petroleum
Journal title
ISSN journal
09655441
Volume
35
Issue
4
Year of publication
1995
Pages
332 - 340
Database
ISI
SICI code
0965-5441(1995)35:4<332:TIOICA>2.0.ZU;2-V
Abstract
Pyrite has been treated in an autoclave with the use of different redu cing media (CO, CO/H-2, CO/H2O) at 673 K and an initial gas pressure o f 4.0 MPa. Equations of the temperature dependence of the specific hea t have been derived, and the thermodynamic functions S-0(T), H-0(T)-H- 0(298.15) and Theta*(T) of pyrrhotines have been calculated. The Gibb s free energy, enthalpy, entropy and equilibrium constant of pyrite re duction have been determined. An investigation has been made of the ki netics of hydrogenation of high-viscosity crude oil of the Karazhambas field (Kazakhstan) in the presence of Write. Effective values of the reaction rate coefficients and the apparent activation energies have b een determined.