Thermodynamic threshold for Pd4S formation in H2S Poisoning of hydrogen purifier palladium membranes
Publish place: Hydrogen and fuel cell conference
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
H2FC04_003
تاریخ نمایه سازی: 13 شهریور 1396
Abstract:
The influence of H2S-to-H2 ratio in real feed stream in sulfidation of pure palladium membranes was investigated through the comparison of the last decade experimental results in which pure palladium membrane experience varying H2S-to-H2 by those predicted by developing Pd4S equilibrium diagram which obviously delimit stable and unstable threshold condition for the Pd4S formation. The most of cases exhibit good agreement between predicted and experimental results. However, some cases have shown inconsistency. That is because of difference in hydrogen partial pressure which cause sulfur to develop strong covalent bond instead of sulfidation
Keywords:
Hydrogen purification , Pure palladium membrane , Pd4S equilibrium phase diagram , palladium poisoning mechanism
Authors
Reza Mohseni Shargh
Nanostructure Materials Research Center, Chemical Engineering Faculty, Sahand University Of Technology, Tabriz, Iran
Mina Omidifar
Nanostructure Materials Research Center, Chemical Engineering Faculty, Sahand University Of Technology, Tabriz, Iran
Ali Akbar Babaluo
Nanostructure Materials Research Center, Chemical Engineering Faculty, Sahand University Of Technology, Tabriz, Iran
Sona Jamshidi
Chemical Engineering Faculty, Islamic Azad University, Tabriz Branch, Iran