Current Knowledge and Potential Applications of Ionic Liquids in the Petroleum Industry

José-Alberto, Murillo-Hernández; Jorge, Aburto

doi:10.5772/13974

Cited by 25 publications

(14 citation statements)

References 61 publications

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“…Recently, ILs and poly (ionic liquids), PILs, that contain imidazolium, pyridinium, and quaternary ammonium cations having a low melting point, non-flammability, and higher thermal stability were used as green oilfield chemicals in the petroleum industry [ 19 , 20 , 21 , 22 , 23 , 24 ]. ILs formulations are based on amines, block copolymers, and hydrophobic ILs (1,5-dicarboxy-pentane-2-ammonium, pyridinium, isoquinolinium, imidazolium, ammonium and ammonium carboxymethane, and an anion selected from the group consisting of R 5 COO − , Cl − , Br − , [BF 4 ] − , [PF 6 ] − , [SbF 6 ] − , [R 6 SO 4 ] − , [OTs] − , [OMs]) that are used to demulsify, dehydrate, and desalt the crude oil [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Application of New Amphiphilic Asphaltene Ionic Liquid Polymers to Demulsify Arabic Heavy Petroleum Crude Oil Emulsions

et al. 2020

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Asphaltenes are heavy petroleum crude oil components which limit the production of petroleum crude oil due to their aggregation and their stabilization for all petroleum crude oil water emulsions. The present study aimed to modify the chemical structures of isolated asphaltenes by converting them into amphiphilic polymers containing ionic liquid moieties (PILs) to demulsify the emulsion and replace the asphaltene layers surrounding the oil or water droplets in petroleum crude oil emulsions. The literature survey indicated that no modification occurred to produce the PILs from the asphaltenes. In this respect, the asphaltenes were modified via oxidation of the lower aliphatic chain through carboxylation followed by conversion to asphaltene acid chloride that reacted with ethoxylated N-alkyl pyridinium derivatives. Moreover, the carboxylation of asphaltenes was carried out through the Diels–Alder reaction with maleic anhydride that was linked with ethoxylated N-alkyl pyridinium derivatives to produce amphiphilic asphaltene PILs. The produced PILs from asphaltenes acid chloride and maleic anhydride were designated as AIL and AIL-2. The chemical structure and thermal stability of the polymeric asphaltene ionic liquids were evaluated. The modified structure of asphaltenes AIL and AIL-2 exhibited different thermal characteristics involving glass transition temperatures (Tg) at −68 °C and −45 °C, respectively. The new asphaltenes ionic liquids were adsorbed at the asphaltenes surfaces to demulsify the heavy petroleum crude emulsions. The demulsification data indicated that the mixing of AIL and AIL-2 100 at different ratios with ethoxylated N-alkyl pyridinium were demulsified with 100% of the water from different compositions of O:W emulsions 50:50, 90:10, and 10:90. The demulsification times for the 50:50, 90:10, and 10:90 O:W emulsions were 120, 120, and 60 min, respectively. The interaction of the PILs with asphaltene and mechanism of demulsification was also investigated.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Application of New Amphiphilic Asphaltene Ionic Liquid Polymers to Demulsify Arabic Heavy Petroleum Crude Oil Emulsions

et al. 2020

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“…Additionally, removing depositions of asphaltenes and paraffins with ILs has been tested to dissolve them and good IL performance has been revealed. 11 These properties allow ILs to be used as desired chemicals in ecology and in economic points of view. Accordingly, several investigations have been conducted to examine the effectiveness of ILs.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, in industry, more work is needed in order to address a number of issues, such as the choice of the IL, the IL/feed ratio, and costs. 11 Hence, before any reliable judgment on the oil-field application of the ILs, it is critically important to design the ILs, not only to tolerate the harsh salinity conditions but also to reduce more significantly the IFT values.…”

Section: Introductionmentioning

confidence: 99%

“…They may also be used to dehydrate and to desalinate crude oils as well as in petroleum refining for desulfurizing, denitrogenating, and dearomatizing. Additionally, removing depositions of asphaltenes and paraffins with ILs has been tested to dissolve them and good IL performance has been revealed …”

Section: Introductionmentioning

confidence: 99%

“…It is noteworthy that, although ILs have been successfully examined for crude oil producing, transporting, and refining at the lab scale, they have not been investigated as much as needed in pilot plants and field scales. Thus, in industry, more work is needed in order to address a number of issues, such as the choice of the IL, the IL/feed ratio, and costs . Hence, before any reliable judgment on the oil-field application of the ILs, it is critically important to design the ILs, not only to tolerate the harsh salinity conditions but also to reduce more significantly the IFT values.…”

Section: Introductionmentioning

confidence: 99%

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Systematic Investigation of a Surfactant Type Nano Gemini Ionic Liquid and Simultaneous Abnormal Salt Effects on Crude Oil/Water Interfacial Tension

Saien

Kharazi

Yarie

et al. 2019

Ind. Eng. Chem. Res.

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Gemini ionic liquids (ILs) are usually known to have significant surfactant behavior. Nanomaterials, on the other hand, are capable of improving interface properties. The current study explores the use of a novel nano gemini imidazolium IL with a molecular structure of a four methylene group spacer for reducing crude oil/water interfacial tension (IFT). The gemini IL was prepared purely by a two-step synthesis method and characterized in different ways. Results revealed that IFT was drastically decreased to 97.8% in the presence of the IL and more decrease was achieved with temperature and pH variations. The high performance of the IL can be attributed to the strong IL amphiphilic nature. The salt effects in the presence of the IL were evaluated with NaCl, MgCl2, and their mixture. Results revealed more IFT reduction under salinity conditions because of a remarkable found synergism effect, unlike conventional surfactants. The findings encourage the use of seawater IL solutions in chemical enhanced oil recovery. The obtained salt-free IFT data were precisely reproduced with the well-known Frumkin adsorption isotherm, and the corresponding thermodynamic parameters were obtained at different temperatures. From thermodynamic results, a spontaneous IL adsorption was deduced.

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A Review on the Application of Ionic Liquids for Enhanced Oil Recovery

2017

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Current Knowledge and Potential Applications of Ionic Liquids in the Petroleum Industry

Cited by 25 publications

References 61 publications

Synthesis and Application of New Amphiphilic Asphaltene Ionic Liquid Polymers to Demulsify Arabic Heavy Petroleum Crude Oil Emulsions

Synthesis and Application of New Amphiphilic Asphaltene Ionic Liquid Polymers to Demulsify Arabic Heavy Petroleum Crude Oil Emulsions

Systematic Investigation of a Surfactant Type Nano Gemini Ionic Liquid and Simultaneous Abnormal Salt Effects on Crude Oil/Water Interfacial Tension

A Review on the Application of Ionic Liquids for Enhanced Oil Recovery

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