Increasing the yield of pure hydrogen generated in the chemical loop reforming of methanol by using the oxygen carrier catalyst bi- layer arrangement
The production of pure H2 for polymer fuel cells was studied by the chemical loop reforming of methanol in the presence of 0.3CoFe2O4-0.4ZrO2 as an oxygen carrier in a micro-channel reactor. The results of this study showed that the production of pure H2 is possible only if the coke deposition is co...
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Semnan University
2024-06-01
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| Series: | شیمی کاربردی روز |
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| Online Access: | https://chemistry.semnan.ac.ir/article_8925_85c71165aabda59dedd41fcbb9a858b8.pdf |
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| author | Hossein Khani Nahid Khandan Mohammad Hasan Eikani Ali Eliassi |
| author_facet | Hossein Khani Nahid Khandan Mohammad Hasan Eikani Ali Eliassi |
| author_sort | Hossein Khani |
| collection | DOAJ |
| description | The production of pure H2 for polymer fuel cells was studied by the chemical loop reforming of methanol in the presence of 0.3CoFe2O4-0.4ZrO2 as an oxygen carrier in a micro-channel reactor. The results of this study showed that the production of pure H2 is possible only if the coke deposition is controlled. By optimizing the reduction time to 7 minutes, the coke deposition controlled and pure H2 flow was produced with an average yield of 2.6%, which was an interesting result and so far this degree of purity of H2 has not been reported by the chemical loop reforming of methanol. To increase the yield of pure H2 in this study, a two-layer catalyst concept is proposed in the form of an additional layer coating with high resistance to coke and suitable reactivity with methanol from NiO/MgAl2O4 to 10% on 0.3CoFe2O4-0.4ZrO2 layer. Optimization of various parameters using the concept of double-layer oxygen carrier showed that the use of 20% nickel concentration with a reduction time of 11 minutes increased the yield of H2 with 100% purity, which increased by 42% in the double-layer arrangement compared to the single-layer state, and it is a promising result for the concept of bi-layer oxygen carrier in this process. |
| format | Article |
| id | doaj-art-15cfad79b60246dd97ae2be7712c0636 |
| institution | OA Journals |
| issn | 2981-2437 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | Semnan University |
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| series | شیمی کاربردی روز |
| spelling | doaj-art-15cfad79b60246dd97ae2be7712c06362025-08-20T02:30:37ZengSemnan Universityشیمی کاربردی روز2981-24372024-06-011971496810.22075/chem.2023.28374.20988925Increasing the yield of pure hydrogen generated in the chemical loop reforming of methanol by using the oxygen carrier catalyst bi- layer arrangementHossein Khani0Nahid Khandan1Mohammad Hasan Eikani2Ali Eliassi3Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, IranDepartment of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, IranDepartment of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, IranDepartment of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, IranThe production of pure H2 for polymer fuel cells was studied by the chemical loop reforming of methanol in the presence of 0.3CoFe2O4-0.4ZrO2 as an oxygen carrier in a micro-channel reactor. The results of this study showed that the production of pure H2 is possible only if the coke deposition is controlled. By optimizing the reduction time to 7 minutes, the coke deposition controlled and pure H2 flow was produced with an average yield of 2.6%, which was an interesting result and so far this degree of purity of H2 has not been reported by the chemical loop reforming of methanol. To increase the yield of pure H2 in this study, a two-layer catalyst concept is proposed in the form of an additional layer coating with high resistance to coke and suitable reactivity with methanol from NiO/MgAl2O4 to 10% on 0.3CoFe2O4-0.4ZrO2 layer. Optimization of various parameters using the concept of double-layer oxygen carrier showed that the use of 20% nickel concentration with a reduction time of 11 minutes increased the yield of H2 with 100% purity, which increased by 42% in the double-layer arrangement compared to the single-layer state, and it is a promising result for the concept of bi-layer oxygen carrier in this process.https://chemistry.semnan.ac.ir/article_8925_85c71165aabda59dedd41fcbb9a858b8.pdf" production of pure hydrogen""bi-layer catalyst""chemical loop process""oxygen carrier""yield enhancement" |
| spellingShingle | Hossein Khani Nahid Khandan Mohammad Hasan Eikani Ali Eliassi Increasing the yield of pure hydrogen generated in the chemical loop reforming of methanol by using the oxygen carrier catalyst bi- layer arrangement شیمی کاربردی روز " production of pure hydrogen" "bi-layer catalyst" "chemical loop process" "oxygen carrier" "yield enhancement" |
| title | Increasing the yield of pure hydrogen generated in the chemical loop reforming of methanol by using the oxygen carrier catalyst bi- layer arrangement |
| title_full | Increasing the yield of pure hydrogen generated in the chemical loop reforming of methanol by using the oxygen carrier catalyst bi- layer arrangement |
| title_fullStr | Increasing the yield of pure hydrogen generated in the chemical loop reforming of methanol by using the oxygen carrier catalyst bi- layer arrangement |
| title_full_unstemmed | Increasing the yield of pure hydrogen generated in the chemical loop reforming of methanol by using the oxygen carrier catalyst bi- layer arrangement |
| title_short | Increasing the yield of pure hydrogen generated in the chemical loop reforming of methanol by using the oxygen carrier catalyst bi- layer arrangement |
| title_sort | increasing the yield of pure hydrogen generated in the chemical loop reforming of methanol by using the oxygen carrier catalyst bi layer arrangement |
| topic | " production of pure hydrogen" "bi-layer catalyst" "chemical loop process" "oxygen carrier" "yield enhancement" |
| url | https://chemistry.semnan.ac.ir/article_8925_85c71165aabda59dedd41fcbb9a858b8.pdf |
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