scholarly journals The water-gas shift reaction: from conventional catalytic systems to Pd-based membrane reactors-a review

2010 ◽  
Vol 5 (1) ◽  
pp. 111-137 ◽  
Author(s):  
D. Mendes ◽  
A. Mendes ◽  
L. M. Madeira ◽  
A. Iulianelli ◽  
J. M. Sousa ◽  
...  
Keyword(s):  
Membrane Reactors ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Catalytic Systems ◽  
Shift Reaction ◽  
Water Gas

scholarly journals Development of CVD Silica Membranes Having High Hydrogen Permeance and Steam Durability and a Membrane Reactor for a Water Gas Shift Reaction

Membranes ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 140 ◽  
Author(s):  
Ryoichi Nishida ◽  
Toshiki Tago ◽  
Takashi Saitoh ◽  
Masahiro Seshimo ◽  
Shin-ichi Nakao
Keyword(s):  
Carbon Dioxide Emission ◽  
Membrane Reactors ◽  
Water Gas Shift ◽  
Vapor Concentration ◽  
Water Gas Shift Reaction ◽  
High Hydrogen ◽  
Silica Membranes ◽  
Hydrogen Permeance ◽  
Shift Reaction ◽  
Water Gas

Water gas shift reaction of carbon monoxide (CO) with membrane reactors should be a promising method for hydrogen mass-production because of its high CO conversion, high hydrogen purity and low carbon dioxide emission. For developing such membrane reactors, we need hydrogen permselective membranes with high hydrogen permeance with order of 10−6 mol m−2 s−1 Pa−1 at 573 K and high steam durability. In this study, we have optimized the kind of substrates, precursors, vapor concentration, and chemical vapor deposition (CVD) time using the counter-diffusion CVD method for developing such membranes. The developed membrane prepared from hexamethyldisiloxane has a hydrogen permeance of 1.29 × 10−6 mol m−2 s−1 Pa−1 at 573 K and high steam durability. We also conducted water gas shift reactions with membrane reactors installed the developed silica membranes. The results indicated that reactions proceed efficiently with the conversion around 95–97%, hydrogen purity around 94%, and hydrogen recovery around 60% at space velocity (SV) 7000.

Wall-catalyzed water-gas shift reaction in multi-tubular Pd and 80wt%Pd–20wt%Cu membrane reactors at 1173K

2007 ◽  
Vol 298 (1-2) ◽  
pp. 14-23 ◽  
Author(s):  
Osemwengie Iyoha ◽  
Robert Enick ◽  
Richard Killmeyer ◽  
Bret Howard ◽  
Bryan Morreale ◽  
...  
Keyword(s):  
Membrane Reactors ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Shift Reaction ◽  
Water Gas

A study on catalytic membrane reactors for water gas shift reaction

1996 ◽  
Vol 10 (1) ◽  
pp. 53-61 ◽  
Author(s):  
A. Basile ◽  
E. Drioli ◽  
F. Santell ◽  
V. Violante ◽  
G. Capannelli ◽  
...  
Keyword(s):  
Membrane Reactors ◽  
Water Gas Shift ◽  
Catalytic Membrane ◽  
Water Gas Shift Reaction ◽  
Shift Reaction ◽  
Water Gas ◽  
Catalytic Membrane Reactors

Enhancing the production of hydrogen via water–gas shift reaction using Pd-based membrane reactors

2010 ◽  
Vol 35 (22) ◽  
pp. 12596-12608 ◽  
Author(s):  
Diogo Mendes ◽  
Vânia Chibante ◽  
Ju-Meng Zheng ◽  
Silvano Tosti ◽  
Fabio Borgognoni ◽  
...  
Keyword(s):  
Membrane Reactors ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
Production Of Hydrogen ◽  
Shift Reaction ◽  
Water Gas

Performance assessment of high temperature water-gas-shift reaction for hydrogen generation and its purification in a membrane reactor/separator of hydrogen or of carbon dioxide

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Imed Eddi ◽  
Lemnouer Chibane
Keyword(s):  
Carbon Dioxide ◽  
High Temperature ◽  
Hydrogen Generation ◽  
Membrane Reactors ◽  
Water Gas Shift ◽  
Water Gas Shift Reaction ◽  
High Temperature Water ◽  
Shift Reaction ◽  
Water Gas ◽  
Temperature Water

AbstractIn the current work, the high temperature water gas shift reaction assessment for hydrogen generation and its purification was carried out in reactors integrating hydrogen or carbon dioxide perm-selective membranes. Indeed, the performance of the high temperature water gas shift reaction was analyzed under adiabatic conditions through a mathematical model developed for this purpose. The main results indicate that both membrane reactors provide under some conditions a complete carbon monoxide conversion. As a result the dual phase membrane presents a great separation capacity of carbon dioxide. This gives us the opportunity to obtain a high purity of hydrogen. Thus, it can be concluded that the concept of the membrane reactor that used for carbon dioxide separation could be a veritable competitor and a great promise candidate for replacing the Pd based membrane reactors which is used for hydrogen separation.

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