Coupling of subcritical methanol with acidic ionic liquids for the acidity reduction of naphthenic acids-Reference-Cited by-同舟云学术

Coupling of subcritical methanol with acidic ionic liquids for the acidity reduction of naphthenic acids

Published:2017-09-01 Issue:3 Volume:19 Page:68-74
ISSN:1899-4741
Container-title:Polish Journal of Chemical Technology
language:en
Short-container-title:

Author:

Zafar Faisal¹,Mandal Pradip Chandra¹,Shaari Ku Zilati Bt Ku¹,Ullah Zahoor²

Affiliation:

1. Universiti Teknologi PETRONAS , Department of Chemical Engineering , 32610 , Bandar Seri Iskandar , Perak, Malaysia

2. Balochistan University of IT , Department of Chemistry, Engineering and Management Sciences (BUITEMS) , Takatu Campus, Quetta - 87100 , Pakistan

Abstract

Abstract The presence of naphthenic acids (NAs) in crude oil is the major cause of corrosion in the refineries and its processing equipment. The goal of this study is to reduce the total acid number (TAN) of NAs by treating them with subcritical methanol in the presence of acidic ionic liquid (AIL) catalysts. Experiments were carried out in an autoclave batch reactor and the effect of different reaction parameters was investigated. It was observed that TAN reduction was positively dependent on the temperature and concentration of the AIL whereas excess of methanol has a negative effect. Approximately 90% TAN reduction was achieved under the optimized reaction conditions using [BMIM]HSO4 as catalyst. It was also perceived from the experimental results that the AILs with longer alkyl chain exhibited higher catalytic activity. The activity and stability of AIL showed that they can be promising catalyst to esterify NAs under subcritical methanol.

Publisher

Walter de Gruyter GmbH

Subject

General Chemical Engineering,General Chemistry,Biotechnology

Reference34 articles.

1. 1. Clemente, J.S. & Fedorak, P.M. (2005). A review of the occurrence, analyses, toxicity, and biodegradation of naphthenic acids. Chemosphere 60(5), 585–600. DOI: 10.1016/j.chemosphere.2005.02.065.10.1016/j.chemosphere.2005.02.065

2. 2. Headley, J.V., Peru, K.M. & Barrow, M.P. (2016). Advances in mass spectrometric characterization of naphthenic acids fraction compounds in oil sands environmental samples and crude oil—a review. Mass Spectr. Rev. 35(2), 311–328. DOI: 10.1002/mas.21472.10.1002/mas.21472

3. 3. Mandal, P.C. & Nagarajan, T. (2016) Kinetics and reaction pathways of total acid number reduction of cyclopentane carboxylic acid using subcritical methanol. Pol. J. Chem. Technol. 18(3) 44–49. DOI: 10.1515/pjct-2016-0047.10.1515/pjct-2016-0047

4. 4. Shi, L.J., Shen, B.X. & Wang, G.Q. (2008). Removal of naphthenic acids from Beijiang crude oil by forming ionic liquids. Energy Fuels 22(6), 4177–4181. DOI: 10.1021/ef800497p.10.1021/ef800497p

5. 5. Lirong, D. (2005). Formation mechanism and model of oil and gas accumulations in the Melut Basin, Sudan. Bulletin of Mineralogy Petrol. Geochem. 24(1), 50–57.

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