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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Main Authors: Ismail, Mohd Farid, Bakaruddin, Balqis Raihan, Lethesh, Kallidanthiyil Chellappan, Abdul Mutalib, Mohammad Ibrahim, Syah, Syed Nasir
Format: Article
Published: Elsevier 2019
Online Access:http://psasir.upm.edu.my/id/eprint/79796/
https://www.sciencedirect.com/science/article/pii/S1383586618327138
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spelling my.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
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
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.
format Article
author Ismail, Mohd Farid
Bakaruddin, Balqis Raihan
Lethesh, Kallidanthiyil Chellappan
Abdul Mutalib, Mohammad Ibrahim
Syah, Syed Nasir
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
author_facet Ismail, Mohd Farid
Bakaruddin, Balqis Raihan
Lethesh, Kallidanthiyil Chellappan
Abdul Mutalib, Mohammad Ibrahim
Syah, Syed Nasir
author_sort Ismail, Mohd Farid
title 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_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_sort experimental and theoretical study on extraction and recovery of naphthenic acid using dicyanamide-based ionic liquids
publisher Elsevier
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/79796/
https://www.sciencedirect.com/science/article/pii/S1383586618327138
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score 13.211869