Fatty acids have been investigated as boundary structures to construct artificial cells due to their dynamic properties and phase transitions. Here we have explored the possibility that fatty acid systems also demonstrate movement. An oil phase was loaded with a fatty acid anhydride precursor and introduced to an aqueous fatty acid micelle solution. The oil droplets showed autonomous, sustained movement through the aqueous media. Internal convection created a positive feedback loop, and the movement of the oil droplet was sustained as convection drove fresh precursor to the surface to become hydrolyzed. As the system progressed, more surfactant was produced and some of the oil droplets transformed into supramolecular aggregates resembling multilamellar vesicles. The oil droplets also moved directionally within chemical gradients and exhibited a type of chemotaxis.

https://pubs.acs.org/doi/pdf/10.1021/ja0706955

Fatty acid chemistry at the oil-water interface: self-propelled oil droplets.

Process intensification for post-combustion CO2 capture with chemical absorption: A critical review

Factors affecting CO2 absorption efficiency in packed column: A review

Concern has increased about climate change caused by carbon dioxide (CO 2 ) emissions through human activities in recent years. The Intergovernmental Panel on Climate Change predicts a 1.9°C rise in temperature by the year 2100, and this means a reduction in CO 2 is vital for human beings and all other life on earth. There- fore, there is an urgent need for the development of CO 2 separation processes to mitigate this potential problem. Post- combustion power plants can employ various types of separation technology. Among them, chemical absorp- tion using aqueous amine is more developed and more reliable. The conventional solvents used in the chemical absorption process together with the use of absorbents, ionic liquid, alkanolamines and their blended aqueous solutions are reviewed in this work. Different ionic liquid- based solvents for CO 2 absorption and the most effective parameters on mass transfer phenomena between CO 2 and solvent are reviewed. The major concerns for this tech- nology, including the physiochemical properties of ionic liquid-based solvents, Henry's constant and mass transfer coefficient and their correlations, and various factors for effective CO 2 absorption, are addressed.

A review of CO2 capture by absorption in ionic liquid-based solvents

This paper presented a novel flue gas desulfurization (FGD) process. In this method, organic amine was used to absorb sulfur dioxide in flue gas. The vapor−liquid equilibrium model of absorption of sulfur dioxide in the flue gas by an organic amine was established, and the vapor−liquid equilibrium of the sulfur dioxide−ethylenediamine−phosphoric acid−water system was first predicted. For a 0.3 mol·L-1 ethylenediamine buffer solution system, the predicted results fit the experimental results well. It is indicated that the model is preferable to predict vapor−liquid equilibrium under the experimental conditions. Using an ethylenediamine−phosphoric acid aqueous solution as the absorbent, some technology conditions such as the temperature, gas−liquid ratio, pH value, concentration of the desulfurization reagent, and liquid flow rate in absorption and deabsorption were experimentally researched on the ⌀ 30 mm × 600 mm packed tower in the laboratory. The optimized conditions were finally specified after experim...

Jerzy Buzek

Papers

A model of cellular convection during absorption accompanied by chemical reaction

The enhancement of the rate of absorption of CO2 in amine solutions due to the Marangoni effect

Diffusional models of multicomponent distillation and their experimental verification

Gas-liquid equilibria in the system SO2-aqueous solutions of NaHSO3/Na2SO3/Na2SO4

Some aspects of the mechanism of cellular convection