Viscosity of n-alkyl-3-methyl-imidazolium bis(trifluoromethylsulfonyl)amide ionic liquids saturated with compressed CO2

Ahosseini, Azita; Ortega, Edgar; Sensenich, Brent; Scurto, Aaron M.

doi:10.1016/j.fluid.2009.07.013

Cited by 66 publications

(57 citation statements)

References 20 publications

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“…This behavior could be attributed to a change in the IL properties as result of the strong interaction with CO 2 . Ahosseini et al [24] reported that viscosity of the IL decreases drastically with CO 2 . A lower viscosity of the IL results in higher gas diffusivities, and thus higher gas permeation through the SILM.…”

Section: Pure Gas Permeabilitymentioning

confidence: 99%

Natural gas purification using supported ionic liquid membrane

Althuluth

Overbeek

Wees

et al. 2015

Journal of Membrane Science

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Section: Pure Gas Permeabilitymentioning

confidence: 99%

Natural gas purification using supported ionic liquid membrane

Althuluth

Overbeek

Wees

et al. 2015

Journal of Membrane Science

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“…Additionally, shear thinning behavior can be detected, as well with dimethylacetamide (DMAc) and dimethylformamide (DMF), at high fractions of IL [119]. As an alternative to water or organic solvents, viscosity reduction can be provided by carbon dioxide (CO 2 ) [120]. Using CO 2 as a co-solvent has the advantages of being cheap, non-toxic, and can be easily separated of the IL when decreasing the pressure.…”

Section: Viscosity Of Concentrated Cellulose Solutions In Ilsmentioning

confidence: 99%

Ionic Liquid as Reaction Media for the Production of Cellulose-Derived Polymers from Cellulosic Biomass

et al. 2017

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Abstract:The most frequent polymer on nature is cellulose that is present together with lignin and hemicellulose in vegetal biomass. Cellulose can be, in the future, sustainable raw matter for chemicals, fuels, and materials. Nevertheless, only 0.3% of cellulose is processed nowadays due to the difficulty in dissolving it, and only a small proportion is used for the production of synthetic cellulosic fibers especially esters and other cellulose derivatives, normally in extremely polluting processes. The efficient and clean dissolution of cellulose is a major objective in cellulose research and development. Ionic liquids (ILs) are considered "green" solvents due to their low vapor pressure, that prevents them evaporating into the atmosphere. In addition, these molten salts present advantages in process intensification, leading to more than 70 patents in lignocellulosic biomass in ILs being published since 2005, most of them related to the production of cellulose derived polymers, e.g., acetates, benzoylates, sulfates, fuorates, phthalates, succinates, tritylates, or silylates. In this work, the use of ILs for production of cellulose derived polymers is thoroughly studied. To do so, in the first place, a brief summary of the state of the art in cellulose derivatives production is presented, as well as the main features of ILs in cellulose processing applications. Later, the main results in the production of cellulose derivatives using ILs are presented, followed by an analysis of the industrial viability of the process, considering aspects such as environmental concerns and ILs' recyclability.

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“…We have recently quantified the beneficial effects of compressed CO 2 in biphasic IL systems for homogeneously catalyzed reactions [8,9]. The high solubility of CO 2 decreases the IL's viscosity and increases the diffusivity [10]. There are some reports that compressed CO 2 can increase the solubility of reaction gases (H 2 and O 2 ) in ILs [11,12].…”

Section: Ionic Liquids and Ionic Liquids/co 2 Systemsmentioning

confidence: 99%