Pore Model Prediction of CH4 Separation from H2S using PTMSP and γ -Alumina Membranes

Hilmi , Mukhtar and N M, Noor and Ridzwan , Nasir and Mohshim, Dzeti (2012) Pore Model Prediction of CH4 Separation from H2S using PTMSP and γ -Alumina Membranes. [Citation Index Journal]



The main aim of this work is to develop a model of hydrogen sulfide (HS) separation from natural gas by using membrane separation technology. The model is developed by incorporating three diffusion mechanisms which are Knudsen, viscous and surface diffusion towards membrane selectivity and permeability. The findings from the simulation result shows that the permeability of the gas is dependent toward the pore size of the membrane, operating pressure, operating temperature as well as feed composition. The permeability of methane has the highest value for Poly (1-trimethylsilyl-1-propyne ) PTMSP membrane at pore size of 0.1nm and decreasing toward a minimum peak at pore range 1 to 1.5 nm as pore size increased before it increase again for pore size is greater than 1.5 nm. On the other hand, the permeability of hydrogen sulfide is found to increase almost proportionally with the increase of membrane pore size. Generally, the increase of pressure will increase the permeability of gas since more driving force is provided to the system while increasing of temperature would decrease the permeability due to the surface diffusion drop off effect. A corroboration of the simulation result also showed a good agreement with the experimental data.

Item Type:Citation Index Journal
Academic Subject One:Academic Department - Chemical Engineering - Material Development
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:8818
Deposited By: Assoc Prof Dr Hilmi Mukhtar
Deposited On:16 Jan 2013 02:07
Last Modified:12 Mar 2013 08:10

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