Catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous SBA-15 : effects of physicochemical properties on ethylene formation
The current study investigated on the ethanol (C2H5OH) dehydration for ethylene (C2H4) production over commercial SBA-15 (SBA-15(Comm.)) and palm oil clinker derived SBA-15 (POC-SBA-15) with pH 3, 5, and 7. The fresh catalysts were characterized by XRD, BET, N2 isotherm, FTIR, TEM, FESEM and NH3-TP...
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| Format: | Conference or Workshop Item |
| Language: | English English |
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Universiti Malaysia Pahang
2019
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| Online Access: | http://umpir.ump.edu.my/id/eprint/26450/1/43.%20Catalytic%20synthesis%20of%20ethylene%20from%20ethanol%20dehydration%20over%20palm%20oil%20clinker.pdf http://umpir.ump.edu.my/id/eprint/26450/2/43.1%20Catalytic%20synthesis%20of%20ethylene%20from%20ethanol%20dehydration%20over%20palm%20oil%20clinker.pdf |
| _version_ | 1825812982041411584 |
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| author | Cheng, Y. W. Chong, Chi Cheng Cheng, C. K. |
| author_facet | Cheng, Y. W. Chong, Chi Cheng Cheng, C. K. |
| author_sort | Cheng, Y. W. |
| collection | UMP |
| description | The current study investigated on the ethanol (C2H5OH) dehydration for ethylene (C2H4) production over commercial SBA-15 (SBA-15(Comm.)) and palm oil clinker derived SBA-15 (POC-SBA-15) with pH 3, 5, and 7. The fresh catalysts were characterized by XRD, BET, N2 isotherm, FTIR, TEM, FESEM and NH3-TPD, and confirmed the successfully formation of POC-SBA-15 by comparing with SBA-15(Comm.). At the reaction temperature range 200-400 °C, all the POC-SBA-15 catalysts performed better than SBA-15(Comm.), in which the POC-SBA-15(pH 5) exhibited the best catalytic activity. Overall, C2H5OH conversion and C2H4 selectivity increased in the order of SBA-15(Comm.) < POC-SBA-15(pH 3) < POC-SBA-15(pH 3) < POC-SBA-15(pH 3). The superiority of POC-SBA-15(pH 5) can be attributed to the enriched weak acid sites that aid in protonating the hydroxyl (-OH) group of C2H5OH. Spent catalysts characterizations confirmed the least coke deposition on POC-SBA-15(pH 5). The best catalyst was then investigated in term of C2H5OH concentration and weight hourly space velocity (WHSV) in the function of temperature. C2H5OH concentration tended to affect the C2H4 selectivity more apparent than C2H5OH. Highest C2H5OH conversion and C2H4 selectivity were achieved at 74.65% and 92.21%, respectively over POC-SBA-15 (pH 5) at reaction temperature of 400 °C, C2H5OH concentration of 50 wt.% and WHSV of 10,000 cm3/g.h. |
| first_indexed | 2024-03-06T12:37:14Z |
| format | Conference or Workshop Item |
| id | UMPir26450 |
| institution | Universiti Malaysia Pahang |
| language | English English |
| last_indexed | 2024-03-06T12:37:14Z |
| publishDate | 2019 |
| publisher | Universiti Malaysia Pahang |
| record_format | dspace |
| spelling | UMPir264502019-12-23T03:17:11Z http://umpir.ump.edu.my/id/eprint/26450/ Catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous SBA-15 : effects of physicochemical properties on ethylene formation Cheng, Y. W. Chong, Chi Cheng Cheng, C. K. TP Chemical technology The current study investigated on the ethanol (C2H5OH) dehydration for ethylene (C2H4) production over commercial SBA-15 (SBA-15(Comm.)) and palm oil clinker derived SBA-15 (POC-SBA-15) with pH 3, 5, and 7. The fresh catalysts were characterized by XRD, BET, N2 isotherm, FTIR, TEM, FESEM and NH3-TPD, and confirmed the successfully formation of POC-SBA-15 by comparing with SBA-15(Comm.). At the reaction temperature range 200-400 °C, all the POC-SBA-15 catalysts performed better than SBA-15(Comm.), in which the POC-SBA-15(pH 5) exhibited the best catalytic activity. Overall, C2H5OH conversion and C2H4 selectivity increased in the order of SBA-15(Comm.) < POC-SBA-15(pH 3) < POC-SBA-15(pH 3) < POC-SBA-15(pH 3). The superiority of POC-SBA-15(pH 5) can be attributed to the enriched weak acid sites that aid in protonating the hydroxyl (-OH) group of C2H5OH. Spent catalysts characterizations confirmed the least coke deposition on POC-SBA-15(pH 5). The best catalyst was then investigated in term of C2H5OH concentration and weight hourly space velocity (WHSV) in the function of temperature. C2H5OH concentration tended to affect the C2H4 selectivity more apparent than C2H5OH. Highest C2H5OH conversion and C2H4 selectivity were achieved at 74.65% and 92.21%, respectively over POC-SBA-15 (pH 5) at reaction temperature of 400 °C, C2H5OH concentration of 50 wt.% and WHSV of 10,000 cm3/g.h. Universiti Malaysia Pahang 2019 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/26450/1/43.%20Catalytic%20synthesis%20of%20ethylene%20from%20ethanol%20dehydration%20over%20palm%20oil%20clinker.pdf pdf en http://umpir.ump.edu.my/id/eprint/26450/2/43.1%20Catalytic%20synthesis%20of%20ethylene%20from%20ethanol%20dehydration%20over%20palm%20oil%20clinker.pdf Cheng, Y. W. and Chong, Chi Cheng and Cheng, C. K. (2019) Catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous SBA-15 : effects of physicochemical properties on ethylene formation. In: The 8th Asia Pacific Congress on Catalysis , 4-7 August 2019 , Bangkok, Thailand. pp. 1-45.. (Unpublished) (Unpublished) |
| spellingShingle | TP Chemical technology Cheng, Y. W. Chong, Chi Cheng Cheng, C. K. Catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous SBA-15 : effects of physicochemical properties on ethylene formation |
| title | Catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous SBA-15 : effects of physicochemical properties on ethylene formation |
| title_full | Catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous SBA-15 : effects of physicochemical properties on ethylene formation |
| title_fullStr | Catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous SBA-15 : effects of physicochemical properties on ethylene formation |
| title_full_unstemmed | Catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous SBA-15 : effects of physicochemical properties on ethylene formation |
| title_short | Catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous SBA-15 : effects of physicochemical properties on ethylene formation |
| title_sort | catalytic synthesis of ethylene from ethanol dehydration over palm oil clinker derived mesoporous sba 15 effects of physicochemical properties on ethylene formation |
| topic | TP Chemical technology |
| url | http://umpir.ump.edu.my/id/eprint/26450/1/43.%20Catalytic%20synthesis%20of%20ethylene%20from%20ethanol%20dehydration%20over%20palm%20oil%20clinker.pdf http://umpir.ump.edu.my/id/eprint/26450/2/43.1%20Catalytic%20synthesis%20of%20ethylene%20from%20ethanol%20dehydration%20over%20palm%20oil%20clinker.pdf |
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