Options for Nitriles Removal from C–C Cuts: 1. Via Adsorption
Light cuts from fluid catalyst cracking (FCC) units are commonly used as feedstocks for etherification units in oil refineries. These feedstocks contain nitriles and diolefins that poison the etherification catalyst. PDVSA Intevep has developed several methods for removing these nitriles. An adsorpt...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2005-12-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361705777641981 |
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| author | Maria M. Ramírez-Corredores Zaida Hernández Julia Guerra Jaqueline Medina Rosa Alvarez |
| author_facet | Maria M. Ramírez-Corredores Zaida Hernández Julia Guerra Jaqueline Medina Rosa Alvarez |
| author_sort | Maria M. Ramírez-Corredores |
| collection | DOAJ |
| description | Light cuts from fluid catalyst cracking (FCC) units are commonly used as feedstocks for etherification units in oil refineries. These feedstocks contain nitriles and diolefins that poison the etherification catalyst. PDVSA Intevep has developed several methods for removing these nitriles. An adsorption-based option is discussed in this paper; two other options reported recently were based on catalytic conversions (Ramírez-Corredores et al. 2002, 2003). The oligomerization tendencies of the diolefins dictated the use of a rather inert adsorbent. Some of the critical features of this adsorbent and the adsorption process are discussed. The adsorbent design was based on a geometrical premise and on active non-acid sites to achieve a highly selective adsorbent with a high adsorption capacity for nitriles. Chemical shift was selected for the desorption stage of the removal process to preserve the active lifetime of the adsorbent in the treatment of reactive feedstocks. This was demonstrated to be both effective and beneficial. |
| format | Article |
| id | doaj-art-adfe74d9ca324a3eba4f3d644024c272 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2005-12-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-adfe74d9ca324a3eba4f3d644024c2722025-01-03T00:10:27ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382005-12-012310.1260/026361705777641981Options for Nitriles Removal from C–C Cuts: 1. Via AdsorptionMaria M. Ramírez-CorredoresZaida HernándezJulia GuerraJaqueline MedinaRosa AlvarezLight cuts from fluid catalyst cracking (FCC) units are commonly used as feedstocks for etherification units in oil refineries. These feedstocks contain nitriles and diolefins that poison the etherification catalyst. PDVSA Intevep has developed several methods for removing these nitriles. An adsorption-based option is discussed in this paper; two other options reported recently were based on catalytic conversions (Ramírez-Corredores et al. 2002, 2003). The oligomerization tendencies of the diolefins dictated the use of a rather inert adsorbent. Some of the critical features of this adsorbent and the adsorption process are discussed. The adsorbent design was based on a geometrical premise and on active non-acid sites to achieve a highly selective adsorbent with a high adsorption capacity for nitriles. Chemical shift was selected for the desorption stage of the removal process to preserve the active lifetime of the adsorbent in the treatment of reactive feedstocks. This was demonstrated to be both effective and beneficial.https://doi.org/10.1260/026361705777641981 |
| spellingShingle | Maria M. Ramírez-Corredores Zaida Hernández Julia Guerra Jaqueline Medina Rosa Alvarez Options for Nitriles Removal from C–C Cuts: 1. Via Adsorption Adsorption Science & Technology |
| title | Options for Nitriles Removal from C–C Cuts: 1. Via Adsorption |
| title_full | Options for Nitriles Removal from C–C Cuts: 1. Via Adsorption |
| title_fullStr | Options for Nitriles Removal from C–C Cuts: 1. Via Adsorption |
| title_full_unstemmed | Options for Nitriles Removal from C–C Cuts: 1. Via Adsorption |
| title_short | Options for Nitriles Removal from C–C Cuts: 1. Via Adsorption |
| title_sort | options for nitriles removal from c c cuts 1 via adsorption |
| url | https://doi.org/10.1260/026361705777641981 |
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