Extraction Of Naphthenic Acid From Indonesian Crude Oils By Methanol-Ammonium Solution

Anda Lucia

Abstract


Indonesia’s crude oil which has a total acid number (TAN) with a concentration more than 0.5 mg KOH/g are often found. The presence of naphtenic acid tends to increase the value of TAN. The existence of naphthenic acid needs to be reduced to avoid problems in the petroleum refining process because it will cause problems of corrosion, foaming, etc. On the other hand, naphthenic acid may have a value-added as an emulsifier, antiseptics timber, preservatives, and so on. This study extracted naphthenic acid from some Indonesian crude oils which have relatively high TAN value oil with the code A, B and C. Extraction of naphthenic acid from crude B shows quite high results of that is equal to 65.47% with a purity level of 96.6%


Keywords


Naphthenic acid, Extraction, Methanol-Ammonium Solution

Full Text:

PDF

References


Danzik, M. Pinole, Chevron Research Company.

Jan 1987. Process for Removing

Naphthenic Acids from Petroleum Distillates.

US patent 4 634 519.

Havre, T. E., 2002, Formation of Calcium

Naphthenate in Water/Oil System, Naphthenic

Acid Chemistry and Emulsion Stability, Thesis

Mediaas H. et al., 2003. The acid-IER methods

for selective isolation of carboxylic acids

from crude oils and other organic solvents.

SPE 5th International Symposium on Oilfield Scale

to be Held in Aberdeen, USA, 29-30 Jan 2003.

USA: Society of Petroleum Engineers Inc.

Mohammed, M.A., Sorbie, K.S., 2009.

Naphthenic acid extraction and characterization

from naphthenic field deposits and crude

oil using ESMS and APCI-MS. Colloid and Surfaces

A: Physicochem Eng. Aspects 349:1-18.

Shalaby, H.M., 2005. Refining of Kuwait’s

heavy crude oil: materials challenages. Workshop

on Corrosion and Protection of Metals,

Kuwait, 3-7 Des 2005. Kuwait: Kuwait Institute

for Science Research.

Shi, L.J., Shen BX, Wang GQ. 2008. Removal

of naphthenic acids from Beijing crude oil by

forming ionic liquids. Energy and Fuels 22:4177-

Wang, C., Wang, Y., Chen, J., Sun, X., Liu,

Z., Wan, Q., Dai, Y., Zheng, W., 2011. High

temperature naphthenic acids corrosion of

typical stells. Canadian Journal on Mechanical

Science and Engineering Vol 2, No. 2 :23-30.

Wang, Y., Chu, Z., Qiu, B., Liu, C., Zhang,Y.,

Removal of naphthenic acids from

vacuum fraction oil with an ammonium solution

of ethylene glycol. Fuel 85:2489-2493.




DOI: https://doi.org/10.29017/SCOG.34.1.795

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.