Extraction of naphthenic acid from highly acidic oil using phenolate based ionic liquids

Shah, Syed Nasir; Lethesh, Kallidanthiyil Chellappan; Gonfa, Girma; Mutalib, M.I. Abdul; Pilus, Rashidah M.; Bustam, Mohamad Azmi

doi:10.1016/j.cej.2015.09.017

Cited by 64 publications

(11 citation statements)

References 28 publications

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“…The COSMO-RS calculated activity coefficients of dodecane and naphthenic acid in ionic liquids are displayed in Figures 5c and 5d, respectively. The two compounds, dodecane and naphthenic acid were chosen to represent hydrocarbons [79] and organic acids [80], respectively. NTF 2 -based ILs possess low water affinities (Figure 5b) and high dodecane solubilities, making them well suited for hydrocarbon extraction.…”

Section: Potential Ionic Liquid Applicationsmentioning

confidence: 99%

Rapid, comprehensive screening of ionic liquids towards sustainable applications

Venkatraman

Evjen

Lethesh

et al. 2019

Sustainable Energy Fuels

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Section: Potential Ionic Liquid Applicationsmentioning

confidence: 99%

Rapid, comprehensive screening of ionic liquids towards sustainable applications

Venkatraman

Evjen

Lethesh

et al. 2019

Sustainable Energy Fuels

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“…One key advantage of ILs is the ability to tune their properties for specific applications by careful selection and design of cations and anions. For instance, some ILs are good electrolytes for rechargeable batteries and promising media for separation processes (Brennecke and Maginn, 2001; Domanska et al, 2007; Nasir Shah et al, 2014; Shah et al, 2016; Su et al, 2016). Others are promising solvents for chemical reactions and material transformations (Green et al, 2009; Chen and Ying, 2013).…”

Section: Introductionmentioning

confidence: 99%

Hydroxyl Functionalized Pyridinium Ionic Liquids: Experimental and Theoretical Study on Physicochemical and Electrochemical Properties

et al. 2019

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Structurally modified hydroxyl functionalized pyridinium ionic liquids (ILs), liquid at room temperature, were synthesized and characterized. Alkylated N-(2-hydroxyethyl)-pyridinium ILs were prepared from alkylpyridines via corresponding bromide salts by N-alkylation (65–93%) and final anion exchange (75–96%). Pyridinium-alkylation strongly influenced the IL physicochemical and electrochemical properties. Experimental values for the ILs physicochemical properties (density, viscosity, conductivity, and thermal decomposition temperature), were in good agreement with corresponding predicted values obtained by theoretical calculations. The pyridinium ILs have electrochemical window of 3.0–5.4 V and were thermally stable up to 405°C. The IL viscosity and density were measured over a wide temperature range (25–80°C). Pyridine alkyl-substitution strongly affected the partial positive charge on the nitrogen atom of the pyridinium cations, as shown by charge distribution calculations. On-going studies on Mg complexes of the new ILs demonstrate promising properties for high current density electrodeposition of magnesium.

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“…In general, these approaches can be classified in two ways: nondestructive deacidification and destructive deacidification. The first approach, referred to as a physical method for naphthenic acid removal, includes adsorption, solvent and ionic liquid extractions, − and neutralization . The second approach, known as a chemical method for naphthenic acid removal, involves esterification, − thermal decomposition, and catalytic decomposition. − Naphthenic acid is easily decomposed into hydrocarbons, carbon dioxide, carbon monoxide, and water in the presence of a catalyst, especially the zeolite catalyst.…”

Section: Introductionmentioning

confidence: 99%

Conceptual Coupled Process for Catalytic Cracking of High-Acid Crude Oil

Liu

Chen

et al. 2019

Ind. Eng. Chem. Res.

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To process high-acid crude oil by catalytic cracking technology, a coupled process (FCD–FCC) involving fluid catalytic deacidification (FCD) of high-acid crude oil over a spent catalyst and fluid catalytic cracking (FCC) of heavy oil over a regenerated catalyst was proposed. Experiments were carried out in a confined fluidized bed reactor to test the feasibility of this process. The results indicate that the spent catalyst can be used for deacidification of high-acid crude oil to restrain the overcracking of light fractions. The optimal reaction conditions for the catalytic deacidification of Dar acidic crude oil are a temperature of 460 °C, a catalyst-to-oil ratio of 5, and a spent catalyst with a coke content of 1.26 wt %. Compared with the direct catalytic cracking of Dar crude oil over a regenerated catalyst, the yields of light oil and desired product increased by 6.10 and 6.78 wt % in the FCD–FCC process, respectively, and the olefin content of naphtha decreased by approximately 16 wt %, although the naphtha yield was lowered by 2.9 wt %. This strategy sheds new light on the processing of high-acid crude oil.

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Extraction of naphthenic acid from highly acidic oil using phenolate based ionic liquids

Cited by 64 publications

References 28 publications

Rapid, comprehensive screening of ionic liquids towards sustainable applications

Rapid, comprehensive screening of ionic liquids towards sustainable applications

Hydroxyl Functionalized Pyridinium Ionic Liquids: Experimental and Theoretical Study on Physicochemical and Electrochemical Properties

Conceptual Coupled Process for Catalytic Cracking of High-Acid Crude Oil

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