Separation of Diethylbenzene Isomers on Silicalite in the Presence of High Pressure Carbon Dioxide and Propane
An experimental study of the separation of m- and p-diethylbenzene (DEB) from a mixture containing the weight composition 66.7% m-DEB and 33.3% p-DEB on silicalite has been undertaken using high-pressure carbon dioxide and propane. The high-pressure gases functioned both as a carrier and a desorbent...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publications
1991-12-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/026361749100800405 |
| _version_ | 1797283641313722368 |
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| author | Chung-Sang Tan Chen-Lung Liao Shiaw-Tseh Chiang |
| author_facet | Chung-Sang Tan Chen-Lung Liao Shiaw-Tseh Chiang |
| author_sort | Chung-Sang Tan |
| collection | DOAJ |
| description | An experimental study of the separation of m- and p-diethylbenzene (DEB) from a mixture containing the weight composition 66.7% m-DEB and 33.3% p-DEB on silicalite has been undertaken using high-pressure carbon dioxide and propane. The high-pressure gases functioned both as a carrier and a desorbent. The results show that the most appropriate operating combinations for obtaining 100% recovery of DEB isomer with a purity of over 99% and the smallest mean retention time for m-DEB was achieved by utilizing CO2 and propane at 34.0 atm, 363 K and 30 cm3/min, and at 6.8 atm, 443 K and 15 cm3/min, respectively. With these various combinations, the mean retention time of m-DEB was 149.7 min and 84.4 min using CO2 and propane, respectively. Accommodation to the operating temperature in the DEB production plant, and taking account of the compression costs and the operation time required, suggests the use of propane to achieve separation. |
| first_indexed | 2024-03-07T17:33:45Z |
| format | Article |
| id | doaj.art-1ab48363f56b46dcba25ec87029d63d6 |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T17:33:45Z |
| publishDate | 1991-12-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-1ab48363f56b46dcba25ec87029d63d62024-03-02T17:12:06ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40381991-12-01810.1177/026361749100800405Separation of Diethylbenzene Isomers on Silicalite in the Presence of High Pressure Carbon Dioxide and PropaneChung-Sang Tan0Chen-Lung Liao1Shiaw-Tseh Chiang2Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan 300 43, Republic of China.Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan 300 43, Republic of China.Department of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan 300 43, Republic of China.An experimental study of the separation of m- and p-diethylbenzene (DEB) from a mixture containing the weight composition 66.7% m-DEB and 33.3% p-DEB on silicalite has been undertaken using high-pressure carbon dioxide and propane. The high-pressure gases functioned both as a carrier and a desorbent. The results show that the most appropriate operating combinations for obtaining 100% recovery of DEB isomer with a purity of over 99% and the smallest mean retention time for m-DEB was achieved by utilizing CO2 and propane at 34.0 atm, 363 K and 30 cm3/min, and at 6.8 atm, 443 K and 15 cm3/min, respectively. With these various combinations, the mean retention time of m-DEB was 149.7 min and 84.4 min using CO2 and propane, respectively. Accommodation to the operating temperature in the DEB production plant, and taking account of the compression costs and the operation time required, suggests the use of propane to achieve separation.https://doi.org/10.1177/026361749100800405 |
| spellingShingle | Chung-Sang Tan Chen-Lung Liao Shiaw-Tseh Chiang Separation of Diethylbenzene Isomers on Silicalite in the Presence of High Pressure Carbon Dioxide and Propane Adsorption Science & Technology |
| title | Separation of Diethylbenzene Isomers on Silicalite in the Presence of High Pressure Carbon Dioxide and Propane |
| title_full | Separation of Diethylbenzene Isomers on Silicalite in the Presence of High Pressure Carbon Dioxide and Propane |
| title_fullStr | Separation of Diethylbenzene Isomers on Silicalite in the Presence of High Pressure Carbon Dioxide and Propane |
| title_full_unstemmed | Separation of Diethylbenzene Isomers on Silicalite in the Presence of High Pressure Carbon Dioxide and Propane |
| title_short | Separation of Diethylbenzene Isomers on Silicalite in the Presence of High Pressure Carbon Dioxide and Propane |
| title_sort | separation of diethylbenzene isomers on silicalite in the presence of high pressure carbon dioxide and propane |
| url | https://doi.org/10.1177/026361749100800405 |
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