RT Journal Article
T1 Syngas upgrading in a membrane reactor with thin Pd-alloy supported membrane
A1 Brunetti, A.
A1 Caravella, A.
A1 Fernandez, E.
A1 Pacheco Tanaka, D. A.
A1 Gallucci, F.
A1 Drioli, E.
A1 Curcio, E.
A1 Viviente, J. L.
A1 Barbieri, G.
AB In hydrogen production, the syngas streams produced by reformers and/or coal gasification plants contain a large amount of H2 and CO in need of upgrading. To this purpose, reactors using Pd-based membranes have been widely studied as they allow separation and recovery of a pure hydrogen stream. However, the high cost of Pd-membranes is one of the main limitations for scaling up technology. Therefore, many researchers are now pursuing the possibility of using supported membranes with as thin as possible Pd-alloy layers. In this work, the upgrading of a syngas stream is experimentally investigated in a water gas shift membrane reactor operated in a high temperature range with an ultra-thin supported membrane (3.6 micron-thick). The membrane permeance was measured before and after catalyst packing and also after reaction for 2100 h of operation in total. Membrane reactor performance was evaluated as a function of operating conditions such as temperature, pressure, gas hourly space velocity, feed molar ratio, and sweep gas. A CO conversion significantly higher than the thermodynamics upper limit of a traditional reactor was achieved, even at high gas hourly space velocities and a 25% less reaction volume than that of a traditional reactor was enough to achieve a 90% equilibrium conversion.
SN 0360-3199
YR 2015
FD 2015-09-14
LA eng
NO Brunetti , A , Caravella , A , Fernandez , E , Pacheco Tanaka , D A , Gallucci , F , Drioli , E , Curcio , E , Viviente , J L & Barbieri , G 2015 , ' Syngas upgrading in a membrane reactor with thin Pd-alloy supported membrane ' , International Journal of Hydrogen Energy , vol. 40 , no. 34 , pp. 10883-10893 . https://doi.org/10.1016/j.ijhydene.2015.07.002
NO Publisher Copyright: © 2015 Hydrogen Energy Publications, LLC.
NO This project has received funding from the European Union; Seventh Programme for research, technological development and demonstration under grant agreement n. NMP3-LA-2011-262840 “DEMCAMER – Design and Manufacturing of Catalytic Membrane Reactors by Developing New Nano-architectured Catalytic and Selective Membrane Materials” ( www.demcamer.org ).
DS TECNALIA Publications
RD 1 jul 2024