Experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids
Naphthenic acid is a toxic component that is present in the crude oil. It causes severe operational problems for oil refineries. However, naphthenic acid is a useful raw material for many industrial processes. Thus, it is advantageous to extract and recover the naphthenic acid from crude oil. Ionic...
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| Format: | Article |
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Elsevier
2019
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| _version_ | 1796980673690468352 |
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| author | Ismail, Mohd Farid Bakaruddin, Balqis Raihan Lethesh, Kallidanthiyil Chellappan Abdul Mutalib, Mohammad Ibrahim Syah, Syed Nasir |
| author_facet | Ismail, Mohd Farid Bakaruddin, Balqis Raihan Lethesh, Kallidanthiyil Chellappan Abdul Mutalib, Mohammad Ibrahim Syah, Syed Nasir |
| author_sort | Ismail, Mohd Farid |
| collection | UPM |
| description | Naphthenic acid is a toxic component that is present in the crude oil. It causes severe operational problems for oil refineries. However, naphthenic acid is a useful raw material for many industrial processes. Thus, it is advantageous to extract and recover the naphthenic acid from crude oil. Ionic liquid has been considered as an environmental friendly material that can be used to extract naphthenic acid from crude oil. However, the characteristics of the ionic liquids to achieve the best extraction efficiency is still not completely known. In this research, the performance of the ionic liquids consists of diazabicyclo undecene (DBU) based cations and dicyanamide (DCN) anion in the extraction of naphthenic acid from acidic model oil was studied. Computer simulation of a mixture of naphthenic acid, ionic liquid, and n-dodecane was also performed. The study showed that the DBU-DCN based ionic liquids can effectively extract naphthenic acid from highly acidic model oil. The increase in the alkyl chain length on the cation increases the percent naphthenic acid extraction. Molecular simulation studies showed that the dicynamide anion interacting directly with the naphthenic acid. The alkyl chain on the DBU cation does not form any cage around the naphthenic acid as previously proposed. The study suggests that the biggest factor affecting naphthenic acid extraction efficiency is the extent of solubility of the polar ionic liquid in the non-polar oil. |
| first_indexed | 2024-03-06T10:26:31Z |
| format | Article |
| id | upm.eprints-79796 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T10:26:31Z |
| publishDate | 2019 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-797962022-11-07T01:48:55Z http://psasir.upm.edu.my/id/eprint/79796/ Experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids Ismail, Mohd Farid Bakaruddin, Balqis Raihan Lethesh, Kallidanthiyil Chellappan Abdul Mutalib, Mohammad Ibrahim Syah, Syed Nasir Naphthenic acid is a toxic component that is present in the crude oil. It causes severe operational problems for oil refineries. However, naphthenic acid is a useful raw material for many industrial processes. Thus, it is advantageous to extract and recover the naphthenic acid from crude oil. Ionic liquid has been considered as an environmental friendly material that can be used to extract naphthenic acid from crude oil. However, the characteristics of the ionic liquids to achieve the best extraction efficiency is still not completely known. In this research, the performance of the ionic liquids consists of diazabicyclo undecene (DBU) based cations and dicyanamide (DCN) anion in the extraction of naphthenic acid from acidic model oil was studied. Computer simulation of a mixture of naphthenic acid, ionic liquid, and n-dodecane was also performed. The study showed that the DBU-DCN based ionic liquids can effectively extract naphthenic acid from highly acidic model oil. The increase in the alkyl chain length on the cation increases the percent naphthenic acid extraction. Molecular simulation studies showed that the dicynamide anion interacting directly with the naphthenic acid. The alkyl chain on the DBU cation does not form any cage around the naphthenic acid as previously proposed. The study suggests that the biggest factor affecting naphthenic acid extraction efficiency is the extent of solubility of the polar ionic liquid in the non-polar oil. Elsevier 2019 Article PeerReviewed Ismail, Mohd Farid and Bakaruddin, Balqis Raihan and Lethesh, Kallidanthiyil Chellappan and Abdul Mutalib, Mohammad Ibrahim and Syah, Syed Nasir (2019) Experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids. Separation and Purification Technology, 213. pp. 199-212. ISSN 1383-5866; ESSN: 1873-3794 https://www.sciencedirect.com/science/article/pii/S1383586618327138 10.1016/j.seppur.2018.12.033 |
| spellingShingle | Ismail, Mohd Farid Bakaruddin, Balqis Raihan Lethesh, Kallidanthiyil Chellappan Abdul Mutalib, Mohammad Ibrahim Syah, Syed Nasir Experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids |
| title | Experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids |
| title_full | Experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids |
| title_fullStr | Experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids |
| title_full_unstemmed | Experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids |
| title_short | Experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids |
| title_sort | experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide based ionic liquids |
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