Deep Eutectic Solvents: Green Solvents of the Future

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Chemical Processes and Systems".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 2221

Special Issue Editors


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Guest Editor
Sustainable Process and Energy Systems, TNO (The Netherlands Organisation for Applied Scientific Research), 2628 CA Delft, The Netherlands
Interests: process design; synthetic fuels; process intensification; energy transition

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Guest Editor
Inorganic Membranes and Membrane Reactors, Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
Interests: process design and intensification; membranes and membrane reactors; separation
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Special Issue Information

Dear Colleagues,

Solvents are widely used in daily products such as thinners, adhesives, lubricants and fuels. Moreover, vast amounts of solvents are applied in the chemical industry as reaction media, extraction agents and solvents for CO2 capture, etc. The applied solvents are mostly derived from fossil-based feedstocks. In decarbonization of the industry, it is important to underline the use of green solvents such as deep eutectic solvents (DESs) as substituents for the conventionally used ones. The merits of deep eutectic solvents such as the ease of preparation, tuneability, and high atomic efficiency (since no synthesis steps are involved) make them an interesting category of solvents. The tunability of the prepared solvent is based on the nature of the building blocks (hydrogen bond donor and hydrogen bond acceptor) and their ratio, which is not necessarily 1:1.

This Special Issue on “Deep Eutectic Solvents: Green Solvents of the Future” aims to cover recent advances in research, development, and application of deep eutectic solvents. Topics include, but are not limited to, methods and/or application in the following areas:

  • DESs as tailor-made solvents for processes (e.g., gas separation, LL extraction and metal extraction);
  • Experimentally obtained data for various applications;
  • Techno-economic studies of processes using DESs;
  • Molecular dynamic simulations studies for theoretical understanding of DESs’ interaction nature.

Dr. Lawien Zubeir
Prof. Dr. Fausto Gallucci
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • deep eutectic solvents
  • green solvents
  • extraction
  • CO2 capture
  • process technology

Published Papers (1 paper)

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Research

17 pages, 2887 KiB  
Article
A Novel Ascorbic Acid Based Natural Deep Eutectic Solvent as a Drilling Mud Additive for Shale Stabilization
by Muhammad Hammad Rasool, Maqsood Ahmad, Muhammad Ayoub and Muhammad Adeem Abbas
Processes 2023, 11(4), 1135; https://doi.org/10.3390/pr11041135 - 07 Apr 2023
Cited by 11 | Viewed by 1660
Abstract
During drilling, almost 70% of wellbore instability issues result from the encountering of shale formations. Various additives such as salts, silicates, and polymers are used in water-based mud to enhance its shale-inhibition capability; however, such additives have certain limitations. Lately, ionic liquids and [...] Read more.
During drilling, almost 70% of wellbore instability issues result from the encountering of shale formations. Various additives such as salts, silicates, and polymers are used in water-based mud to enhance its shale-inhibition capability; however, such additives have certain limitations. Lately, ionic liquids and deep eutectic solvents (DES) have been used by various research groups as shale inhibitors in drilling fluid due to their biodegradability and efficacy. However, their popularity faded when a natural derivative of DES, i.e., Natural Deep Eutectic solvent (NADES), came into the picture. This research utilizes the in-house-prepared Ascorbic acid and Glycerine (AA:Gly)-based NADES as a drilling fluid additive for shale inhibition and compares its efficacy with counterpart inhibitors such as KCl, imidazolium-based ionic liquid, and Choline Chloride-based DES. The results show that 3% NADES improved the overall Yield point to Plastic viscosity ratio, with a 39.69% decline in mud cake thickness and a 28% decline in the filtrate volume of drilling mud. Along with improved drilling fluid properties, 3% NADES resulted in 77.77% shale inhibition and 87% shale recovery. Surface tension, d-spacing, zeta potential, and FESEM have been conducted to justify and elucidate the inherent mechanism behind the working of NADES as a drilling fluid additive and clay stabilizer. Thus, Ascorbic acid-based NADES is recommended as a potential non-toxic and cheap drilling fluid additive to improve drilling fluid properties and clay stability. Full article
(This article belongs to the Special Issue Deep Eutectic Solvents: Green Solvents of the Future)
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