Preparing a novel gradient porous metal fiber sintered felt with better manufacturability for hydrogen production via methanol steam reforming |
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| Affiliation: | 1. School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, 510640, China;2. Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen, 361005, China;1. Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;2. Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen 361005, China;3. Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, United States;4. Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;1. Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen 361005, China;2. The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China;3. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;4. Department of Mechanical Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133791, Republic of Korea;5. School of Materials Science & Engineering, Pusan National University, 30 Jangjeon-dong, Kumjeong-gu, Busan 609-735, Republic of Korea;1. A.V.Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, Moscow, 119991, Russia;2. Kuban State University, Krasnodar, Russia;3. N.S.Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prospect 31, Moscow, 119991, Russia;4. National Research University Higher School of Economics, Myasnitskaya Ulitsa 20, Moscow, 101000, Russia;1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;2. School of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China;1. Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen 361005, China;2. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 10084, China;3. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China;4. College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;5. School of Mathematics, Faculty of Science, University of East Anglia, Norwich NR4 7TJ, United Kingdom;1. Department of Chemistry, National Cheng Kung University, Tainan 70101, Taiwan;2. Energy Saving & Monitoring Technology Department, Greenhouse Systems Technology Center, ITRI Central Region Campus, Taiwan |
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| Abstract: | The porous copper fiber sintered felts with gradient porosity structure (gradient PCFSFs) as catalyst supports is beneficial for heat and mass transfer for methanol steam reforming (MSR). However, the previously developed gradient PCFSF based on the velocity distribution introduces curved interface between different porosity portions, making the mold pressing method for its preparation more sensitive to tiny process changes. To improve its manufacturability, a novel gradient PCFSF with planar interface (PCFSF-SLR) is proposed in this paper by fabrication with multi-step mold pressing and solid phase sintering method using cutting copper fibers. Furthermore, MSR experiments under different gas hourly space velocities and reaction temperatures are conducted to verify the characteristics of PCFSF-SLR loaded with Cu/Zn/Al/Zr catalyst. The results have shown that the reaction characteristics of the PCFSF-SLR were similar to those with curved interfaces, and PCFSF-SLRs with a middle portion porosity of 0.9 have better hydrogen production performance and lower carbon monoxide concentration. More importantly, the results indicated that the methanol conversion and hydrogen flow rate of the gradient PCFSF with planar interface and porosity of 0.7-0.9-0.8 were close or even almost the same with that of the best gradient PCFSFs with curved interface and porosities of 0.7-0.9-0.8 and 0.8-0.9-0.7. Therefore, the proposed PCFSF-SLR provides a superior alternative to gradient PCFSFs with better manufacturability. |
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| Keywords: | Methanol steam reforming Porous metal fiber sintered felt Gradient porosity configuration Flow velocity distribution |
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