Hydrogen production via glycerol dry reforming over La-Ni/Al 2 O3 catalyst
Glycerol (a bio-waste generated from biodiesel production) has been touted as a promising bio-syngas precursor via reforming route. Previous studies have indicated that carbon deposition is the major performance-limiting factor for nickel (Ni) catalyst during glycerol steam reforming. In the current...
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| Format: | Article |
| Language: | English |
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Department of Chemical Engineering, Diponegoro University
2013
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| Online Access: | http://umpir.ump.edu.my/id/eprint/25334/1/Hydrogen%20production%20via%20glycerol%20dry%20reforming%20over%20La-Ni-Al%202%20O3%20catalyst.pdf |
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| author | Siew, Kah Weng Lee, Hua Chyn Jolius, Gimbun Cheng, C. K. |
| author_facet | Siew, Kah Weng Lee, Hua Chyn Jolius, Gimbun Cheng, C. K. |
| author_sort | Siew, Kah Weng |
| collection | UMP |
| description | Glycerol (a bio-waste generated from biodiesel production) has been touted as a promising bio-syngas precursor via reforming route. Previous studies have indicated that carbon deposition is the major performance-limiting factor for nickel (Ni) catalyst during glycerol steam reforming. In the current paper, dry (CO2)-reforming of glycerol, a new reforming route was carried out over alumina (Al2O3)-supported non-promoted and lanthanum-promoted Ni catalysts. Both sets of catalysts were synthesized via wet co-impregnation procedure. The physicochemical characterization of the catalyst showed that the promoted catalyst possessed smaller metal crystallite size, hence higher metal dispersion compared to the virgin Ni/Al2O3 catalyst. This was also corroborated by the surface images captured by the FESEM analysis. In addition, BET surface area measurement gave 92.05m²/g for non-promoted Ni catalyst whilst promoted catalysts showed an average of 1 to 6% improvement depending on the La loading. Reaction studies at 873 K showed that glycerol dry reforming successfully produced H2 with glycerol conversion and H2 yield that peaked at 9.7% and 25% respectively over 2wt% La content. The optimum catalytic performance by 2%La-Ni/Al2O3 can be attributed to the larger BET surface area and smaller crystallite size that ensured accessibility of active catalytic sites. |
| first_indexed | 2024-03-06T12:34:07Z |
| format | Article |
| id | UMPir25334 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:34:07Z |
| publishDate | 2013 |
| publisher | Department of Chemical Engineering, Diponegoro University |
| record_format | dspace |
| spelling | UMPir253342019-12-10T01:12:08Z http://umpir.ump.edu.my/id/eprint/25334/ Hydrogen production via glycerol dry reforming over La-Ni/Al 2 O3 catalyst Siew, Kah Weng Lee, Hua Chyn Jolius, Gimbun Cheng, C. K. TP Chemical technology Glycerol (a bio-waste generated from biodiesel production) has been touted as a promising bio-syngas precursor via reforming route. Previous studies have indicated that carbon deposition is the major performance-limiting factor for nickel (Ni) catalyst during glycerol steam reforming. In the current paper, dry (CO2)-reforming of glycerol, a new reforming route was carried out over alumina (Al2O3)-supported non-promoted and lanthanum-promoted Ni catalysts. Both sets of catalysts were synthesized via wet co-impregnation procedure. The physicochemical characterization of the catalyst showed that the promoted catalyst possessed smaller metal crystallite size, hence higher metal dispersion compared to the virgin Ni/Al2O3 catalyst. This was also corroborated by the surface images captured by the FESEM analysis. In addition, BET surface area measurement gave 92.05m²/g for non-promoted Ni catalyst whilst promoted catalysts showed an average of 1 to 6% improvement depending on the La loading. Reaction studies at 873 K showed that glycerol dry reforming successfully produced H2 with glycerol conversion and H2 yield that peaked at 9.7% and 25% respectively over 2wt% La content. The optimum catalytic performance by 2%La-Ni/Al2O3 can be attributed to the larger BET surface area and smaller crystallite size that ensured accessibility of active catalytic sites. Department of Chemical Engineering, Diponegoro University 2013 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25334/1/Hydrogen%20production%20via%20glycerol%20dry%20reforming%20over%20La-Ni-Al%202%20O3%20catalyst.pdf Siew, Kah Weng and Lee, Hua Chyn and Jolius, Gimbun and Cheng, C. K. (2013) Hydrogen production via glycerol dry reforming over La-Ni/Al 2 O3 catalyst. Bulletin of Chemical Reaction Engineering & Catalysis, 8 (2). pp. 160-166. ISSN 1978-2993. (Published) http://dx.doi.org/10.9767/bcrec.8.2.4874.160-166 http://dx.doi.org/10.9767/bcrec.8.2.4874.160-166 |
| spellingShingle | TP Chemical technology Siew, Kah Weng Lee, Hua Chyn Jolius, Gimbun Cheng, C. K. Hydrogen production via glycerol dry reforming over La-Ni/Al 2 O3 catalyst |
| title | Hydrogen production via glycerol dry reforming over La-Ni/Al 2 O3 catalyst |
| title_full | Hydrogen production via glycerol dry reforming over La-Ni/Al 2 O3 catalyst |
| title_fullStr | Hydrogen production via glycerol dry reforming over La-Ni/Al 2 O3 catalyst |
| title_full_unstemmed | Hydrogen production via glycerol dry reforming over La-Ni/Al 2 O3 catalyst |
| title_short | Hydrogen production via glycerol dry reforming over La-Ni/Al 2 O3 catalyst |
| title_sort | hydrogen production via glycerol dry reforming over la ni al 2 o3 catalyst |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/25334/1/Hydrogen%20production%20via%20glycerol%20dry%20reforming%20over%20La-Ni-Al%202%20O3%20catalyst.pdf |
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