Fuel cell grade hydrogen production using multitube Pd composite membrane module from water electrolysis
Paper ID : 1330-MST2015-FULL
sona jamshidi *1, Pedram Hajizadeh Parvin2, Seyyed Ahmad Mousavifar3, Behrang ansari3, aliakbar babaluo4
1Chemical Engineering Department, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Islamic Republic of Iran
2Sahand University of Technology
3Hydrogen Energy and Fuel Cell center, Renewable Energy Organization of Iran
4chemical engineering department
Palladium thin wall tubes are produced by an innovative procedure based on the activation process in ELP method. In activation process, organic-inorganic method was applied to enhance the stability of Pd membranes. These permeators are proposed for separating and producing high-pure hydrogen from products of water electrolysis with 1Nm3/h. The performance of these dense metallic membranes is strongly related to the design configuration of membrane module. In fact, due to thermal coefficient difference between membrane and module, cyclic axial stresses are applied to the thin wall membrane tubes. In our application, a finger-like assembly of the permeator tube has been designed. In this multi-membrane module, each of membrane element permits the free elongation and avoids any thermal stresses. Finally, the performance and long-term stability at different temperature of 15 Pd membranes are investigated. The results show that the purity of hydrogen in permeated side is more than 99.999%. H2 permeance and separation factor of H2/Ar kept constant for more than 240 h, confirming the high potential of the prepared membranes in H2 purification at high temperatures.
Pd composite membrane, Fuel cell hydrogen purification, electrolysis of water, Multi tube module
Status : Conditional Accept (Oral Presentation)