Given the ill-defined term “naphthenic acids”(NAs), we will classify NAs as the carboxylic
acids found naturally in crude oil, which include both classic NAs (c-NAs, monoacids) and ox …

N-alkyl imidazolium carbonate ionic liquids were employed to separate and recover
naphthenic acid from model oils. The effects of the cationic and anionic structures of ionic …

A density functional theory study was performed to investigate the interactions between 1-
butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF 4]) and six different model …

Crude oil acidity, usually quantified through total acid number (TAN) and mainly due to
carboxylic compounds, is a main problem because causes high corrosion rates and fouling …

In this study, a new approach is introduced for the thermodynamic correlation of liquid-liquid
extraction (LLE) systems involving ionic liquids (ILs). The model incorporates the effect of …

Liquid–liquid equilibrium data for the system consisting of toluene, n-heptane and Aliquat
336 ionic liquid was obtained at 303.15 K and atmospheric pressure. The values of …

Naphthenic acid (NA) is one of the components of heavy crude oil. It is composed of a
carboxylic acid functional group attached to a hydrocarbon molecule. Heavy crude oils with …

A series of adamantane-based ionic liquids (ADM-ILs) with [MF n]− anions were synthesized
as cocatalysts for the alkylation of isobutane and butene. By systematically tuning the …

Naphthenic acids that are naturally carboxylic compounds contained in heavy crude oil are
the main source of corrosion and blockage in a crude oil pipeline. The blockage is due to the …

This paper represents a detailed techno-economic analysis of a typical commercial-scale
catalytic decarboxylation process of naphthenic acids over HZSM-5 zeolite. Simulation of the …