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

• Autorzy: Zafar F. , Mandal P. C. , Shaari K. Z. K. , Ullah Z.

Identyfikatory

DOI

10.1515/pjct-2017-0051

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

Naphthenic Acids; Subcritical Methanol; Acidic Ionic Liquids; Total Acid Number; Esterification

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2017
• Tom: Vol. 19, nr 3
• Strony: 68--74
• Opis fizyczny: Bibliogr. 34 poz., rys., tab.

Twórcy

autor

Zafar F.

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

autor

Mandal P. C.

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

autor

Shaari K. Z. K.

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

autor

Ullah Z.

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

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).