The Permeability of Hydrogen in Novel Membranes at Elevated Temperatures and Pressures
نویسندگان
چکیده
B.D. Morreale, M.V. Ciocco, K.S. Rothenberger, B.H. Howard, A.V. Cugini, R.M. Enick Considerable interest in hydrogen separation and membrane reactors has motivated the research and development of hydrogen permeable materials. One particular interest in membrane technology is the application to processes that can benefit from operation at elevated temperatures (up to 1173 K) and pressures (up to 2.75 MPa). Although high cost, poor mechanical characteristics and low flux have prevented palladium from being a practical bulk membrane material, its catalytic surface and infinite selectivity have not diminished it applicability in reduced amounts. Therefore, the permeability of bulk palladium was determined at elevated conditions in efforts to better understand its bulk characteristics for application in reduced amounts.
منابع مشابه
Advances on High Temperature Pd-Based Membranes and Membrane Reactors for Hydrogen Purifcation and Production
Membrane technology applied in the chemical and energy industry has the potential to overcome many drawbacks of conventional technologies such as the need of large volume plants and large CO2 emissions. Recently, it has been reported that this technology might become more competitive...
متن کاملRegeneration of СO2 Physical Solvents at Elevated Pressures in Gas-Liquid Membrane Contactor
In the present work, a membrane contactor with asymmetric flat-sheet poly(vinyltrimethylsilane) (PVTMS) membranes was proposed for the CO2 desorption process from physical solvents at elevated trans-membrane pressures. Different solvents were studied: water, a mixture of polyethylene g...
متن کاملDevelopment of Palladium-Alloy Membranes for Hydrogen Separation and Purification
This paper summarizes R&D activities and progress at NORAM Engineering and the University of British Columbia (UBC) on preparation and testing of thin palladium-based membranes and their applications. Most of these activities were carried out internally at NORAM, some jointly with UBC and their spin-off company, Membrane Reactor Technology (MRT) through a wide range of projects. Key results out...
متن کاملInvestigation the effect of nanocomposite material on permeation flux of polyerthersulfone membrane using a mathematical approach
Integrally skinned asymmetric membranes based on nanocompositepolyethersulfone were prepared by the phase separation process using the supercritical CO2 as a nonsolvent for the polymer solution. In present study, the effects of temperature and nanoparticle on selectivity performance and permeability of gases has beeninvestigated. It is shown that the presence of silica nanoparticles not only di...
متن کامل