Correction: Carbon dioxide uptake from natural gas by binary ionic liquid–water mixtures

Correction for ‘Carbon dioxide uptake from natural gas by binary ionic liquid–water mixtures’ by Kris Anderson et al., Green Chem., 2015, DOI: 10.1039/c5gc00720h

Carbon dioxide uptake from natural gas by binary ionic liquid water mixtures

[EN] Carbon dioxide solubility in a set of carboxylate ionic liquids formulated with stoicheiometric amounts of water is found to be significantly higher than for other ionic liquids previously reported. This is due to synergistic chemical and physical absorption. The formulated ionic liquid/water mixtures show greatly enhanced carbon dioxide solubility relative to both anhydrous ionic liquids and aqueous ionic liquid solutions, and are competitive with commercial chemical absorbers, such as activated N-methyldiethanolamine or monoethanolamine.The authors would like to acknowledge PETRONAS for financial support of this research, and Cytec (especially Dr Al Robertson) for supplying some of the phosphonium ionic liquids used.Anderson, K.; Atkins, MP.; Estager, J.; Kuah, Y.; Ng, S.; Oliferenko, AA.; Plechkova, NV.... (2015). Carbon dioxide uptake from natural gas by binary ionic liquid water mixtures. 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Ionic liquids and salts for contaminant removal in the petroleum industry

This thesis, separated into Parts A and B, is a combination of work on two projects with overlapping themes. Both projects aimed to design an ionic liquid, or a salt system, to remove deleterious contaminants in the petroleum industry in a green and sustainable manner. In Part A, systematic studies have been conducted to design various salt systems that extract mercury via oxidative complexation, from natural gas and liquid hydrocarbon streams. These compounds were characterised using a wide range of analytical techniques. In the mercury extraction from the gas phase, a remarkable discovery of a custom-designed ionic liquid has led to the successful development of a commercial mercury scrubber (containing 15 tonnes of catalyst) at a PETRONAS Gas Processing Plant in Malaysia. In addition, cheaper binary inorganic systems have also been investigated. These were initially prepared as benchmarks to the ionic liquid systems, but have proved to be effective in their own right. This has (led to the development of a second generation of mercury scrubber, currently. under pilot scale evaluation. For mercury extraction from liquid hydrocarbons, again, two of the systems examined, namely the ionic liquids and binary inorganic salt systems, showed significant activity, and these systems are also currently under pilot scale evaluation. [n Part B, the aim was to develop a novel approach to remove C02 from natural gas streams using ionic liquids. Various ionic liquids were synthesised and characterised using various analytical techniques. Remarkably, these novel systems were found to absorb up to 1.5 mol CO2 per mol of ionic liquid, exceeding the best literature value of equimolar capacity, making them very attractive for further pilot scale testing.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

An ionic liquid process for mercury removal from natural gas

Efficient ionic liquid based mercury scrubbing technology from gram to ton scale.</p