Inorganic Membranes for Hydrogen Separation

authors	Cardoso, SP; Azenha, IS; Lin, Z; Portugal, I; Rodrigues, AE; Silva, CM
nationality	International
journal	SEPARATION AND PURIFICATION REVIEWS
author keywords	Carbon molecular sieve membranes; metallic membranes; proton conducting membranes; silica membranes; zeolite membranes
keywords	MOLECULAR-SIEVE MEMBRANES; HOLLOW-FIBER MEMBRANES; POROUS STAINLESS-STEEL; MFI-TYPE ZEOLITE; MICROPOROUS SILICA MEMBRANES; NANOPOROUS CARBON MEMBRANES; GAS PERMEATION PROPERTIES; INTERMETALLIC DIFFUSION-BARRIERS; TEMPERATURE PROTON CONDUCTOR; PD-ALLOY MEMBRANES
abstract	Hydrogen, one of the most promising energy carriers for the future, is currently produced mainly by natural gas reforming or coal gasification, where mixtures containing H-2, CO2 and contaminants like CO, H2S and CH4 are obtained. Among other methods, membrane technology has received special attention due to its potential efficiency for hydrogen separation, simplicity of operation, low energy consumption, and because it is environmentally friendly. For this application, the inorganic membranes can be essentially divided into five main families: metallic and proton conducting (dense phases), and silica, zeolite and carbon molecular sieve (porous solids). Over the past 20 years, palladium-based membranes have been the most studied and implemented at industrial level; however, recent advances in other membrane types have received a great deal of attention. This article critically reviews more than 520 publications, highlighting the latest research developments on inorganic membranes for the recovery and purification of hydrogen, with emphasis on their structural characteristics, synthesis, commercial application, drawbacks and challenges. Furthermore, a large compilation of data is provided in Supplementary Material divided according to membrane type.
publisher	TAYLOR & FRANCIS INC
issn	1542-2119
year published	2018
volume	47
issue	3
beginning page	229
ending page	266
digital object identifier (doi)	10.1080/15422119.2017.1383917
web of science category	Chemistry, Applied; Chemistry, Analytical; Engineering, Chemical
subject category	Chemistry; Engineering
unique article identifier	WOS:000432218000004