Capacitive deionization performance of CNTs-Si-Ag based electrodes for the removal of heat stable salts from methyldiethanolamine (MDEA) solution in natural gas sweetening units

Arora, Naman; Banat, Fawzi; Alhseinat, Emad

doi:10.1016/j.cej.2018.09.054

Cited by 28 publications

(6 citation statements)

References 56 publications

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“…4h). [52][53][54][55][56][57][58] The synthesis cost of ZnG-N1100 is potentially low because of the cheap raw materials and recyclable zinc powders. The superior CDI performances and related excellent properties (Fig.…”

Section: Resultsmentioning

confidence: 99%

Large-surface-area porous monolith of graphene for electrochemical capacitive deionization

Zeng,

Wang,

Wang

et al. 2023

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

Large-surface-area porous monolith of graphene for electrochemical capacitive deionization

Zeng,

Wang,

Wang

et al. 2023

J. Mater. Chem. A

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“…There have been a number of review studies focused on the existing HSS removal methods [12][13][14]. The common method for solvent reclaiming from HSS is distillation [8,17], though alternative techniques exist and include-removal of HSS anions using ion-exchange resins [18,19], capacitive deionization [20,21], concentration of HSS using nanofiltration [22,23], and electromembrane treatment methods [24][25][26]. Direct and bipolar electrodialysis are applicable for treating MEA-based post-combustion CO 2 capture solvents [27][28][29][30][31][32] and diethylamine recovery with simultaneous acid production [33,34].…”

Section: Introductionmentioning

confidence: 99%

Perstraction of Heat-Stable Salts from Aqueous Alkanolamine Solutions

et al. 2022

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Amine absorption processes designed to remove acid gases from gas streams generally face a major challenge of solvent degradation. This degradation leads to the formation of heat-stable salts (HSS), corrosive agents that irreversibly bind free alkanolamine. The present study proposes, for the first time, a method for HSS perstraction using a liquid–liquid membrane contactor that allows HSS to transfer through porous membranes from the solvent into a hydrophobic extractant represented by a methyltrioctylammonium solution in 1-octanol. The perstraction provides selective extraction of HSS anions without direct mixing of liquid phases or the formation of stable emulsions of the solvent and the extractant. For this purpose, a number of industrial and laboratory porous membrane samples fabricated from polyvinylidene fluoride, polypropylene, and polysulfone were investigated. Their chemical and morphological stability, surface properties, and transport properties were tested under prolonged (>600 h) contact with a model solvent (an aqueous monoethanolamine solution) and with the components of the selective extractant. The feasibility of HSS perstraction was demonstrated using the formic acid (as an HSS model) extraction from the model solvent. The most promising results were obtained for a system with a polyvinylidene fluoride membrane: up to 50% of formic acid was extracted over 18 h.

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“…So far, carbon is still the go‐to material for CDI electrode fabrication because it possesses most of the properties mentioned. Activated carbon, [12–14] carbon nanofibers, [15–17] carbon nanotubes, [18–20] carbon aerogels [21–23] and graphene [24–26] are some of the popular types of carbon used in CDI studies. However, carbon still has a couple of limitations such as low wettability, and particle aggregation.…”

Section: Introductionmentioning

confidence: 99%

Carbon‐Based Capacitive Deionization Electrodes: Development Techniques and its Influence on Electrode Properties

Angeles

Lee

2021

The Chemical Record

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Capacitive deionization (CDI) is a potential technology to provide cost efficient desalinated and/or softened water. Several efforts have been invested in the fabrication of CDI electrodes that not only has outstanding performance but also high chance of large scalability. In this personal account, the different techniques in developing carbon‐based materials are presented together with its actual effect on the surface and electrochemical properties of carbon. The categories presented are based on the studies done by the Electrochemical Reaction and Technology Laboratory, the Ertl Center, different research groups in South Korea, and selected papers from the past three years. Our perspective about research gaps and prospects are also included with the aim to increase interest for CDI research.

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Capacitive deionization performance of CNTs-Si-Ag based electrodes for the removal of heat stable salts from methyldiethanolamine (MDEA) solution in natural gas sweetening units

Cited by 28 publications

References 56 publications

Large-surface-area porous monolith of graphene for electrochemical capacitive deionization

Large-surface-area porous monolith of graphene for electrochemical capacitive deionization

Perstraction of Heat-Stable Salts from Aqueous Alkanolamine Solutions

Carbon‐Based Capacitive Deionization Electrodes: Development Techniques and its Influence on Electrode Properties

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