Review on recent advances in adsorptive desulfurization

Pervaporation (PV) has been considered as one of the most active and promising areas in membrane technologies in separating close boiling or azeotropic liquid mixtures, heat sensitive biomaterials, water or organics from its mixtures that are indispensable constituents for various important chemical and bio-separations. In the PV process, the membrane plays the most pivotal role and is of paramount importance in governing the overall efficiency. This article evaluates and collaborates the current research towards the development of next generation nanomaterials (NMs) and embedded polymeric membranes with regard to its synthesis, fabrication and application strategies, challenges and future prospects.

Polymeric Nanocomposite Membranes for Next Generation Pervaporation Process: Strategies, Challenges and Future Prospects.

Deep eutectic solvents based highly efficient extractive desulfurization of fuels – Eco-friendly approach

Deep eutectic solvents (DESs) have been deemed as green solvents due to their similar physical properties to ionic liquids. The most advantage of DESs, especially choline chloride-based DESs, is that they are biodegradable and non-toxic. In this work, several choline-like DESs are synthetized and characterized by 1H NMR, FTIR, UV-vis, Raman and ESI–MS. The DESs with different straight alkyl chains linked to N atom were studied. It is found that [C12DMEA]Cl/FeCl3 shows the best performance and 52.9% of desulfurization efficiency is obtained. For comparison, two kinds of phenyl substituted DESs, [BzMDEA]Cl/FeCl3 and [BzMDEA]Cl/FeCl3, are employed to investigate the extractive mechanism. The result shows that CH-π interaction may be much stronger than π-π interaction in this reseasch. The DESs can be regenerated by water and the extractive efficiency is almost not declined.

Biodegradable choline-like deep eutectic solvents for extractive desulfurization of fuel

Embedding Ag+@COFs within Pebax membrane to confer mass transport channels and facilitated transport sites for elevated desulfurization performance

The membrane based pervaporation process for sulfur removal from gasoline has evoked a great deal of attention due to its distinct advantages. Such advantages include: lower operating and energy costs, easier scale-up, as well as higher selectivity. The separation mechanism of pervaporative desulfurization is based on the sorption and diffusion differences between the components of the gasoline mixture. This review aims to provide insight into the state of the art research activities related to pervaporative desulfurization of gasoline using organic polymeric membranes. To obtain a comprehensive perspective about the pervaporative desulfurization, other techniques of desulfurization are discussed briefly in the introduction. The solubility parameter theory for membranes selection and the membranes material modifications are also examined in this review. The effects of various factors including feed sulfur content, operating temperature, permeate pressure and feed flow rate on desulfurization performance are discussed.

Pervaporative desulfurization of gasoline: A review

A method of preventing formation of a water and oil emulsion in a downhole formation containing oil, the method comprises preparing a dispersion of water and a plurality of non-functionalized nanoparticles, each nanoparticle in the plurality of nanoparticles having a size of at least 300 nanometers, and injecting the dispersion into contact with the oil downhole. Presence of the plurality of nanoparticles prevents formation of an emulsion between the injected water and the oil.

Method for preventing formation of water-oil emulsions using additives

A method of preventing formation of a water and oil emulsion in a downhole formation containing oil, the method comprises preparing a dispersion of water and a plurality of non-functionalized nanoparticles, each nanoparticle in the plurality of nanoparticles having a size of at least 300 nanometers, and injecting the mixture downhole into contact with the oil downhole. Presence of the plurality of nanoparticles prevents formation of an emulsion between the injected water and the oil.

Shahrani Abdullah A

Papers

Pervaporative desulfurization of gasoline: A review

Method for preventing formation of water-oil emulsions using additives

Composition for preventing formation of water-oil emulsions using additives