TY - JOUR
T1 - Application of multisection packing concept to sorption-enhanced steam methane reforming reaction for high-purity hydrogen production
AU - Lee, Chan Hyun
AU - Mun, Sungyong
AU - Lee, Ki Bong
N1 - Funding Information:
This research was supported by the Energy Efficiency and Resources R&D Program ( 2011201020004A ) and the Human Resources Development Program ( 20134010200600 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant, funded by the Korean government's Ministry of Trade, Industry & Energy. The authors also acknowledge the Korea Research Council of Fundamental Science and Technology (KRCF) for the additional support received from the National Agenda Program (NAP).
Publisher Copyright:
© 2015 Elsevier B.V.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - Hydrogen has been gaining popularity as a new clean energy carrier, and bulk hydrogen production is achieved through the steam methane reforming (SMR) reaction. Since hydrogen produced via the SMR reaction contains large amounts of impurities such as unreacted reactants and byproducts, additional purification steps are needed to produce high-purity hydrogen. By applying the sorption-enhanced reaction (SER), in which catalytic reaction and CO2 byproduct removal are carried out simultaneously in a single reactor, high-purity hydrogen can be directly produced. Additionally, the thermodynamic limitation of conventional SMR reaction is circumvented, and the SMR reaction process becomes simplified. To improve the performance of the SER, a multisection packing concept was recently proposed. In this study, the multisection packing concept is experimentally demonstrated by applying it to a sorption-enhanced SMR (SE-SMR) reaction. The experimental results show that the SE-SMR reaction is significantly influenced by the reaction temperature, owing to the conflicting dependence of the reaction rate and the CO2 sorption uptake on the reaction temperature. Additionally, it is confirmed that more high-purity hydrogen (<10 ppm of CO) can be produced by applying the multisection packing concept to the SE-SMR reactions operated at sufficiently high temperatures where the SMR reaction is not limited by rate.
AB - Hydrogen has been gaining popularity as a new clean energy carrier, and bulk hydrogen production is achieved through the steam methane reforming (SMR) reaction. Since hydrogen produced via the SMR reaction contains large amounts of impurities such as unreacted reactants and byproducts, additional purification steps are needed to produce high-purity hydrogen. By applying the sorption-enhanced reaction (SER), in which catalytic reaction and CO2 byproduct removal are carried out simultaneously in a single reactor, high-purity hydrogen can be directly produced. Additionally, the thermodynamic limitation of conventional SMR reaction is circumvented, and the SMR reaction process becomes simplified. To improve the performance of the SER, a multisection packing concept was recently proposed. In this study, the multisection packing concept is experimentally demonstrated by applying it to a sorption-enhanced SMR (SE-SMR) reaction. The experimental results show that the SE-SMR reaction is significantly influenced by the reaction temperature, owing to the conflicting dependence of the reaction rate and the CO2 sorption uptake on the reaction temperature. Additionally, it is confirmed that more high-purity hydrogen (<10 ppm of CO) can be produced by applying the multisection packing concept to the SE-SMR reactions operated at sufficiently high temperatures where the SMR reaction is not limited by rate.
KW - CO sorption
KW - High-purity hydrogen
KW - Multisection packing
KW - Sorption-enhanced reaction
KW - Steam methane reforming reaction
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U2 - 10.1016/j.jpowsour.2015.01.175
DO - 10.1016/j.jpowsour.2015.01.175
M3 - Article
AN - SCOPUS:84922773684
SN - 0378-7753
VL - 281
SP - 158
EP - 163
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -