scholarly journals Templated nanostructure silica membrane versus template free one: synthesis, characterization and performance for hydrogen separation

2019 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Asieh Jabbari Gargari ◽  
Farnaz Assa ◽  
Ali Akbar Babaluo ◽  
Kamran Ghasemzadeh
Keyword(s):  
Hydrogen Separation ◽  
Silica Membrane ◽  
Template Free ◽  
And Performance

Modeling study of silica membrane performance for hydrogen separation

2015 ◽  
Vol 10 (5) ◽  
pp. 781-790 ◽  
Author(s):  
Abbas Aghaeinejad-Meybodi ◽  
Kamran Ghasemzadeh ◽  
Ali Akbar Babaluo ◽  
Pietropaolo Morrone ◽  
Angelo Basile
Keyword(s):  
Hydrogen Separation ◽  
Silica Membrane ◽  
Membrane Performance ◽  
Modeling Study

Hydrogen separation from synthesis gas using silica membrane: CFD simulation

2020 ◽  
Vol 45 (38) ◽  
pp. 19381-19390 ◽  
Author(s):  
Davood Tahmasbi ◽  
Siamak Hossainpour ◽  
Ali Akbar Babaluo ◽  
Mashallah Rezakazemi ◽  
Seyyed Sajad Mousavi Nejad Souq ◽  
...  
Keyword(s):  
Synthesis Gas ◽  
Cfd Simulation ◽  
Hydrogen Separation ◽  
Silica Membrane

Hydrogen separation of methyltriethoxysilane templating silica membrane

AIChE Journal ◽  
2007 ◽  
Vol 53 (12) ◽  
pp. 3125-3136 ◽  
Author(s):  
Jong-Ho Moon ◽  
Chang-Ha Lee
Keyword(s):  
Hydrogen Separation ◽  
Silica Membrane

Design and Performance Analysis of a 1 MW Solid Oxide Fuel Cell System for Combined Production of Heat, Hydrogen, and Power

2011 ◽  
Author(s):  
William L. Becker ◽  
Robert J. Braun ◽  
Michael Penev
Keyword(s):  
Fuel Cell ◽  
Hydrogen Production ◽  
Capital Investment ◽  
Energy Requirement ◽  
Unit Cost ◽  
Hydrogen Separation ◽  
Hydrogen Gas ◽  
Performance Estimation ◽  
Pure Hydrogen ◽  
And Performance

SOFC systems with co-generation exhibit high overall efficiency. Fuel cell-based co-generation studies have typically focused on electricity and heat; pure hydrogen gas can also be generated in these systems as an energy co-product resulting in the combined production of heat, hydrogen, and power (CHHP). Co-locating a distributed generation SOFC CHHP plant with fueling stations for fuel cell vehicles enables use of lower scale (200 kg/day) hydrogen production and leverages the capital investment among all co-products, thereby lowering the unit cost of hydrogen and offering a potentially promising transition pathway to a hydrogen economy. This work focuses on the design and performance estimation of a methane-fueled 1 MW SOFC CHHP system operating at steady-state. System design and modeling are carried out employing Aspen Plus™ software where performance characteristics of the SOFC and the balance-of-plant are estimated from industry and literature sources. Analysis of the SOFC CHHP system indicates that the SOFC electrochemical performance is independent of the heat recovery and hydrogen production processes because the latter two subsystems are downstream of the SOFC power module. The system is configured such that it can preferentially produce hydrogen or low-temperature thermal energy (80 °C) as needed. Two methods of hydrogen purification and recovery from the SOFC tail-gas were analyzed: pressure swing adsorption (PSA) and electrochemical hydrogen separation (EHS). The recovered hydrogen is compressed to 425 bar for storage. The SOFC electrical efficiency at rated power is estimated at 48.1% (LHV) and the overall CHHP efficiency is 84.4% (LHV) for the EHS design concept. The amount of hydrogen recovery (85–90%) with EHS is higher than PSA for typical SOFC effluent gas compositions. The hydrogen separation energy requirement of 2.7 kWh/kg H2 for EHS is found to be about three times lower than PSA in this system. Increasing the amount of hydrogen production can be independently controlled by flowing excess methane into the system, effectively decreasing SOFC fuel utilization yet still reforming the fuel to a hydrogen-rich syngas. A case study for hydrogen overproduction is given. Operating the system to produce excess hydrogen increases the efficiency for both hydrogen separation design concepts.

Design and performance of asymmetric supported membranes for oxygen and hydrogen separation

2020 ◽  
Author(s):  
Vladislav A. Sadykov ◽  
Nikita F. Eremeev ◽  
Yulia E. Fedorova ◽  
Alexey V. Krasnov ◽  
Ludmilla N. Bobrova ◽  
...  
Keyword(s):  
Hydrogen Separation ◽  
Supported Membranes ◽  
And Performance

Development of an All-ceramic Module with Silica Membrane Tubes for High Temperature Hydrogen Separation

2008 ◽  
Vol 43 (13) ◽  
pp. 3432-3447 ◽  
Author(s):  
Yasushi Yoshino ◽  
Takehiro Suzuki ◽  
Hisatomi Taguchi ◽  
Mikihiro Nomura ◽  
Shin-ichi Nakao ◽  
...  
Keyword(s):  
High Temperature ◽  
Hydrogen Separation ◽  
Silica Membrane ◽  
All Ceramic

Modeling hydrogen separation in high temperature silica membrane systems

AIChE Journal ◽  
2006 ◽  
Vol 52 (5) ◽  
pp. 1729-1735 ◽  
Author(s):  
M. C. Duke ◽  
J. C. Diniz da Costa ◽  
G. Q. Lu ◽  
P. G. Gray
Keyword(s):  
High Temperature ◽  
Hydrogen Separation ◽  
Membrane Systems ◽  
Silica Membrane
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