Adsorption Behaviour of Normal Paraffins in a Fixed Bed Adsorber Containing 5 Å Molecular Sieves
The adsorption process for separating normal paraffins from naphtha using 5 Å molecular sieves was studied with the purpose of optimizing the utilization of naphtha and providing a proper allocation of the feeds for the steam cracking and catalytic reforming processes. The separation efficiency of t...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publications
2006-05-01
|
| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361706779319643 |
| _version_ | 1797288928410075136 |
|---|---|
| author | Liu Jichang Shen Benxian Sun Hui |
| author_facet | Liu Jichang Shen Benxian Sun Hui |
| author_sort | Liu Jichang |
| collection | DOAJ |
| description | The adsorption process for separating normal paraffins from naphtha using 5 Å molecular sieves was studied with the purpose of optimizing the utilization of naphtha and providing a proper allocation of the feeds for the steam cracking and catalytic reforming processes. The separation efficiency of the normal paraffins was > 99.9% while their purity in the desorption oil could reach 98.2%. The effects of adsorption temperature and space velocity on the adsorption process were investigated. The adsorption capacity was large and the adsorption mass-transfer zone was short when the adsorption temperature was low in the range of 180–340°C and the feed space velocity was small in the range of 30–300 h −1 . The adsorptivity of the normal paraffins improved with increasing carbon number. Long-chain normal paraffins had a notable displacement desorption relative to short-chain normal paraffins. |
| first_indexed | 2024-03-07T18:56:46Z |
| format | Article |
| id | doaj.art-c83c162be9d8441aaccd3f258c4c21ad |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T18:56:46Z |
| publishDate | 2006-05-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-c83c162be9d8441aaccd3f258c4c21ad2024-03-02T00:19:37ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382006-05-012410.1260/026361706779319643Adsorption Behaviour of Normal Paraffins in a Fixed Bed Adsorber Containing 5 Å Molecular SievesLiu JichangShen BenxianSun HuiThe adsorption process for separating normal paraffins from naphtha using 5 Å molecular sieves was studied with the purpose of optimizing the utilization of naphtha and providing a proper allocation of the feeds for the steam cracking and catalytic reforming processes. The separation efficiency of the normal paraffins was > 99.9% while their purity in the desorption oil could reach 98.2%. The effects of adsorption temperature and space velocity on the adsorption process were investigated. The adsorption capacity was large and the adsorption mass-transfer zone was short when the adsorption temperature was low in the range of 180–340°C and the feed space velocity was small in the range of 30–300 h −1 . The adsorptivity of the normal paraffins improved with increasing carbon number. Long-chain normal paraffins had a notable displacement desorption relative to short-chain normal paraffins.https://doi.org/10.1260/026361706779319643 |
| spellingShingle | Liu Jichang Shen Benxian Sun Hui Adsorption Behaviour of Normal Paraffins in a Fixed Bed Adsorber Containing 5 Å Molecular Sieves Adsorption Science & Technology |
| title | Adsorption Behaviour of Normal Paraffins in a Fixed Bed Adsorber Containing 5 Å Molecular Sieves |
| title_full | Adsorption Behaviour of Normal Paraffins in a Fixed Bed Adsorber Containing 5 Å Molecular Sieves |
| title_fullStr | Adsorption Behaviour of Normal Paraffins in a Fixed Bed Adsorber Containing 5 Å Molecular Sieves |
| title_full_unstemmed | Adsorption Behaviour of Normal Paraffins in a Fixed Bed Adsorber Containing 5 Å Molecular Sieves |
| title_short | Adsorption Behaviour of Normal Paraffins in a Fixed Bed Adsorber Containing 5 Å Molecular Sieves |
| title_sort | adsorption behaviour of normal paraffins in a fixed bed adsorber containing 5 a molecular sieves |
| url | https://doi.org/10.1260/026361706779319643 |
| work_keys_str_mv | AT liujichang adsorptionbehaviourofnormalparaffinsinafixedbedadsorbercontaining5amolecularsieves AT shenbenxian adsorptionbehaviourofnormalparaffinsinafixedbedadsorbercontaining5amolecularsieves AT sunhui adsorptionbehaviourofnormalparaffinsinafixedbedadsorbercontaining5amolecularsieves |