Extraction and Recovery of Naphthenic Acid from Acidic Oil Using Supported Ionic Liquid Phases (SILPs)

2015 ◽  
Vol 10 (4) ◽  
pp. 221-228 ◽  
Author(s):  
Syed Nasir Shah ◽  
Kallidanthiyil Chellappan Lethesh ◽  
M. I. Abdul Mutalib ◽  
Rashidah Binti Mohd Pilus
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Thermo Gravimetric Analysis ◽  
Naphthenic Acid ◽  
Naphthenic Acids ◽  
Gravimetric Analysis ◽  
Supported Ionic Liquid ◽  
Liquid Phases ◽  
Model Oil ◽  
Supported Ionic Liquids

Abstract In this study, functionalized silica supported ionic liquids phases (SILPs) were synthesized and characterized using Fourier Transform infrared (FTIR) spectroscopy, CHNS elemental analysis, thermo gravimetric analysis (TGA) and scanning electron microscopy (SEM). The adsorption of model naphthenic acid such as hexanoic acid, benzoic acid and commercial naphthenic acid from dodecane/kerosene was also investigated. The silica supported ionic liquids are good adsorbent for the removal of naphthenic acid from highly acidic model oil. The regeneration of supported ionic liquid phases as well as recovery of naphthenic acids from the supported ionic liquid phases (SILPs) was investigated.

Polymer supported ionic liquid phases (SILPs) versus ionic liquids (ILs): How much do they look alike

2007 ◽  
pp. 3086-3088 ◽  
Author(s):  
M. Isabel Burguete ◽  
Francisco Galindo ◽  
Eduardo García-Verdugo ◽  
Naima Karbass ◽  
Santiago V. Luis
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Supported Ionic Liquid ◽  
Liquid Phases ◽  
Polymer Supported

Separation of Naphthenic Acid Using Hydroxide Based Ionic Liquids

2014 ◽  
Vol 625 ◽  
pp. 570-573 ◽  
Author(s):  
Syed Nasir Shah ◽  
Mohammed Ibrahim Abdul Mutalib ◽  
Rashidah Binti Mohd Pilus ◽  
Kallidanthiyil Chellappan Lethesh
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Naphthenic Acid ◽  
Liquid Model ◽  
Before And After ◽  
Different Temperatures ◽  
Model Oil

Isolation of naphthenic acid from model oil using hydroxide based ionic liquid was investigated. A detailed de-acidification study at different temperatures and different ionic liquid/model oil was performed and the content of naphthenic acid before and after extraction was calculated. The ILs containing hydroxide anions has the potential to completely deacidify model oil having high TAN with extremely low ionic liquid /oil ratio.

scholarly journals Ultrasonic-Assisted Technique as a Novel Method for Removal of Naphthenic Acid from Model Oil Using Piperidinium-Based Ionic Liquids

ACS Omega ◽  
2021 ◽  
Vol 6 (14) ◽  
pp. 9629-9637
Author(s):  
Sakinah Khaidzir ◽  
Asiah Nusaibah Masri ◽  
Muhammad Syafiq Hazwan Ruslan ◽  
Mohamed Ibrahim Abdul Mutalib
Keyword(s):  
Ionic Liquids ◽  
Naphthenic Acid ◽  
Ultrasonic Assisted ◽  
Novel Method ◽  
Model Oil

scholarly journals Investigating the Proton and Ion Transfer Properties of Supported Ionic Liquid Membranes Prepared for Bioelectrochemical Applications Using Hydrophobic Imidazolium-Type Ionic Liquids

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 359
Author(s):  
László Koók ◽  
Piroska Lajtai-Szabó ◽  
Péter Bakonyi ◽  
Katalin Bélafi-Bakó ◽  
Nándor Nemestóthy
Keyword(s):  
Mass Transfer ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Microbial Fuel Cells ◽  
Transport Numbers ◽  
Liquid Membranes ◽  
Ion Transfer ◽  
Supported Ionic Liquid ◽  
Supported Ionic Liquid Membranes ◽  
Transfer Properties

Hydrophobic ionic liquids (IL) may offer a special electrolyte in the form of supported ionic liquid membranes (SILM) for microbial fuel cells (MFC) due to their advantageous mass transfer characteristics. In this work, the proton and ion transfer properties of SILMs made with IL containing imidazolium cation and [PF6]− and [NTf2]− anions were studied and compared to Nafion. It resulted that both ILs show better proton mass transfer and diffusion coefficient than Nafion. The data implied the presence of water microclusters permeating through [hmim][PF6]-SILM to assist the proton transfer. This mechanism could not be assumed in the case of [NTf2]− containing IL. Ion transport numbers of K+, Na+, and H+ showed that the IL with [PF6]− anion could be beneficial in terms of reducing ion transfer losses in MFCs. Moreover, the conductivity of [bmim][PF6]-SILM at low electrolyte concentration (such as in MFCs) was comparable to Nafion.

scholarly journals Novel and Reusable Mesoporous Silica Supported 4-Methylbenzenesul- fonate-functionalized Ionic Liquids for Room Temperature Highly Efficient Preparation of 2,4,5-Triaryl-1H-imidazoles

2021 ◽  
Vol 65 (4) ◽  
Author(s):  
Yang Liu ◽  
Qi Rong ◽  
Chen Chen ◽  
Hu Yu Lin
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Catalytic Mechanism ◽  
Catalyst Stability ◽  
Catalyst Amount ◽  
Supported Ionic Liquid ◽  
Highly Efficient ◽  
Excellent Activity ◽  
Commercial Applications ◽  
Supported Ionic Liquids

Abstract. A series of mesoporous materials supported ionic liquids were prepared and tested as effective and practical catalysts for the synthesis of 2,4,5-triaryl-1H-imidazoles. The effects of type of catalysts, catalyst amount, and catalyst stability have also been investigated in detail, the catalyst Ti-SBA-15@ILTsO exhibited excellent activity in excellent yields of 92 % ~ 99 % with low catalyst amount at room temperature within 1 h. In addition, the supported ionic liquid can be easily recovered and reused for six times with satisfactory catalytic activity. Furthermore, a general synergetic catalytic mechanism for the reaction was proposed. Maybe this work employing Ti-SBA-15@ILTsO as highly efficient and stable catalyst for the synthesis of 2,4,5-triaryl-1H-imidazoles has potential commercial applications.   Resumen. Se prepararon y probaron una serie de materiales mesoporosos soportados con líquidos iónicos como catalizadores eficaces y prácticos para la síntesis de 2,4,5-triaryl-1H-imidazoles. También se investigaron en detalle los efectos del tipo de catalizadores, la cantidad de catalizador y la estabilidad del catalizador. El catalizador Ti-SBA-15@ILTsO mostró una excelente actividad con rendimientos excelentes del 92 % ~ 99% con una baja cantidad de catalizador a temperatura ambiente en 1 h. Además, el líquido iónico soportado puede recuperarse fácilmente y reutilizarse durante seis veces con una actividad catalítica satisfactoria. Por otro lado, se propuso un mecanismo catalítico sinérgico general para la reacción. Este trabajo que emplea Ti-SBA-15@ILTsO como catalizador altamente eficiente y estable para la síntesis de 2,4,5-triaril-1H-imidazoles puede tener aplicaciones potencialmente comerciales.

scholarly journals Influence of Guayule Resin as a Bio-Based Additive on Asphalt–Rubber Binder at Elevated Temperatures

Recycling ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 38 ◽  
Author(s):  
Ahmed Hemida ◽  
Magdy Abdelrahman
Keyword(s):  
Rheological Properties ◽  
Elevated Temperatures ◽  
Thermo Gravimetric Analysis ◽  
Crumb Rubber ◽  
Environmental Concerns ◽  
Gravimetric Analysis ◽  
Thermo Gravimetric ◽  
Asphalt Cement ◽  
Asphalt Rubber ◽  
Liquid Phases

This study seeks to find the influence of replacing a portion of the asphalt–rubber binder with the bio-based material “guayule resin.” This replacement could be beneficial in terms of sustainability, economics, and environmental concerns related to the asphalt industry. Nine asphalt–rubber–guayule binders were investigated to find their rheological properties. Consecutively, the study proceeded with five selected binders being compared to the original asphalt (PG64-22). Investigations underwent whole matrices (crumb rubber modifier (CRM) residue included) and liquid phases (CRM residue extracted). Additionally, these properties were partially sought for their corresponding asphalt–rubber binders to compare and judge the contribution of the guayule resin. Likewise, a thermo-gravimetric analysis was done for the guayule resin to recognize its moisture and composition complexity. Such an analysis was also done for the as-received CRM and some extracted CRMs to determine the release and residue of rubber components. Outcomes showed that the guayule resin has the potential to compensate the performance required against the original asphalt at elevated temperatures while greatly decreasing the asphalt cement proportion. For instance, a blend of 62.5% asphalt, 12.5% CRM, and 25% guayule resin provided better performance than that of the original asphalt.

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