Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation
The major problem plaguing propane dehydrogenation process is the coke formation on the Pt-Sn/Al2O3cat-alyst which leads to catalyst deactivation. Due to information paucity, the physicochemical characteristics of the commercially obtained regenerated Pt-Sn/Al2O3catalyst (operated in moving...
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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/25358/1/Characterization%20of%20industrial%20Pt-Sn-Al2%20O3%20catalyst%20and%20transient%20product%20formations.pdf |
| _version_ | 1825812778691067904 |
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| author | Ho, Kah Sing Chye, Joanna Jo Ean Chin, S. Y. Cheng, C. K. |
| author_facet | Ho, Kah Sing Chye, Joanna Jo Ean Chin, S. Y. Cheng, C. K. |
| author_sort | Ho, Kah Sing |
| collection | UMP |
| description | The major problem plaguing propane dehydrogenation process is the coke formation on the Pt-Sn/Al2O3cat-alyst which leads to catalyst deactivation. Due to information paucity, the physicochemical characteristics of the commercially obtained regenerated Pt-Sn/Al2O3catalyst (operated in moving bed reactor) and coke formation at different temperatures of reaction were discussed. The physicochemical characterization of re-generated catalyst gave a BET surface area of 104.0 m2/g with graphitic carbon content of 8.0% indicative of incomplete carbon gasification during the industrial propylene production. Effect of temperatures on coke formation was identified by studying the product yield via temperature-programmed reaction carried out at 500 oC, 600 oC and 700 oC. It was found that ethylene was precursor to carbon laydown while propylene tends to crack into methane. Post reaction, the spent catalyst possessed relatively lower surface area and pore radius whilst exhibited higher carbon content (31.80% at 700 oC) compared to the regenerated cata-lyst. Significantly, current studies also found that higher reaction temperatures favoured the coke for-mation. Consequently, the propylene yield has decreased with reaction temperature. |
| first_indexed | 2024-03-06T12:34:11Z |
| format | Article |
| id | UMPir25358 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T12:34:11Z |
| publishDate | 2013 |
| publisher | Department of Chemical Engineering, Diponegoro University |
| record_format | dspace |
| spelling | UMPir253582019-12-10T01:19:53Z http://umpir.ump.edu.my/id/eprint/25358/ Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation Ho, Kah Sing Chye, Joanna Jo Ean Chin, S. Y. Cheng, C. K. TP Chemical technology The major problem plaguing propane dehydrogenation process is the coke formation on the Pt-Sn/Al2O3cat-alyst which leads to catalyst deactivation. Due to information paucity, the physicochemical characteristics of the commercially obtained regenerated Pt-Sn/Al2O3catalyst (operated in moving bed reactor) and coke formation at different temperatures of reaction were discussed. The physicochemical characterization of re-generated catalyst gave a BET surface area of 104.0 m2/g with graphitic carbon content of 8.0% indicative of incomplete carbon gasification during the industrial propylene production. Effect of temperatures on coke formation was identified by studying the product yield via temperature-programmed reaction carried out at 500 oC, 600 oC and 700 oC. It was found that ethylene was precursor to carbon laydown while propylene tends to crack into methane. Post reaction, the spent catalyst possessed relatively lower surface area and pore radius whilst exhibited higher carbon content (31.80% at 700 oC) compared to the regenerated cata-lyst. Significantly, current studies also found that higher reaction temperatures favoured the coke for-mation. Consequently, the propylene yield has decreased with reaction temperature. Department of Chemical Engineering, Diponegoro University 2013 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25358/1/Characterization%20of%20industrial%20Pt-Sn-Al2%20O3%20catalyst%20and%20transient%20product%20formations.pdf Ho, Kah Sing and Chye, Joanna Jo Ean and Chin, S. Y. and Cheng, C. K. (2013) Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation. Bulletin of Chemical Reaction Engineering & Catalysis, 8 (1). pp. 77-82. ISSN 1978-2993. (Published) https://doi.org/10.9767/bcrec.8.1.4569.77-82 https://doi.org/10.9767/bcrec.8.1.4569.77-82 |
| spellingShingle | TP Chemical technology Ho, Kah Sing Chye, Joanna Jo Ean Chin, S. Y. Cheng, C. K. Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation |
| title | Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation |
| title_full | Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation |
| title_fullStr | Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation |
| title_full_unstemmed | Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation |
| title_short | Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation |
| title_sort | characterization of industrial pt sn al2 o3 catalyst and transient product formations during propane dehydrogenation |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/25358/1/Characterization%20of%20industrial%20Pt-Sn-Al2%20O3%20catalyst%20and%20transient%20product%20formations.pdf |
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