Universiti Teknologi Malaysia Institutional Repository

Gibbs energy minimization method for analysis of methane oxidation to higher hydrocarbons

Saidina Amin, Nor Aishah and Soon, Ee Peng (2008) Gibbs energy minimization method for analysis of methane oxidation to higher hydrocarbons. Jurnal Teknologi (48F). pp. 33-50. ISSN 0127-9696

[img]
Preview
PDF
536Kb

Official URL: http://www.penerbit.utm.my/onlinejournal/48/F/JT48...

Abstract

The total Gibbs energy minimization method is useful to theoretically analyze the feasibility of methane conversion to higher hydrocarbons and syngas at the selected temperature and pressure. Numerical results showed that the conversion of methane increased with oxygen concentration and reaction temperature, but decreased with pressure. Nevertheless, the presence of oxygen suppressed the formation of higher hydrocarbons that mostly consisted of aromatics, but enhanced the formation of hydrogen. As the system pressure increased, the aromatics, olefins and hydrogen yields diminished, but the paraffin yield improved. Carbon monoxide seemed to be the major oxygen-containing equilibrium product from methane oxidation whilst almost no H2O, CH3OH and HCOH were detected although traces amount of carbon dioxide were formed at relatively lower temperature and higher pressure.

Item Type:Article
Uncontrolled Keywords:Thermodynamic chemical equilibrium, Gibbs energy minimization, methane conversion, higher hydrocarbons
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:6756
Deposited By: Pn Norhayati Abu Ruddin
Deposited On:04 Nov 2008 01:02
Last Modified:25 Oct 2010 04:25

Repository Staff Only: item control page