Over recent years our research group has examined the performance of a range of rate promoters in potassium carbonate solvent for carbon dioxide absorption. Promoters including boric acid, potassium glycinate, potassium prolinate, potassium sarcosinate and a thermally stable carbonic anhydrase e...
Aqueous solutions of potassium glycinate were characterized for carbon dioxide absorption purposes. Density and viscosity of these solutions, with concentrations ranging from 0.1 to 3 M, were determined at temperatures from 293 to 313 K. Diffusivity of CO2 in solution was estimated applying the ...
For CO2 absorption purposes, monoethanolamine, diglycolamine and potassium glycinate are chosen from a range of washing solutions. Afterwards they are compared regarding degradation through the presence of the flue gas components oxygen, sulfur dioxide und nitrogen oxide.
A thermodynamic model was developed to describe the absorption of CO2 into a glycine promoted potassium carbonate solution. It was found that the model could effectively predict vapour–liquid equilibrium of CO2 and solubility of hydrated potassium carbonate and potassium bicarbonate in glycine ...
The emission of CO2 greenhouse gas is one of the most momentous causes of environmental problems such as global warming. Hence, the sequestration of CO2 acid gas from gaseous streams is considered as a mandatory process to control the detrimental impressions of CO2 emission. In the present inves...
The vapour–liquid equilibrium of CO2 above a solution of potassium carbonate and potassium glycinate was studied in a dynamic equilibrium apparatus, with a stationary liquid phase and moving gas phase. The partial pressure of CO2 and liquid phase speciation was measured for solutions containing...
In this work aqueous solution of potassium glycinate, piperazine and potassium glycinate blended with piperazine have been utilized through CO2 solubility measurements in order to investigate the possible use of these salts of amino acid blended with alkanolamine for CO2 absorption. The equilibr...
The present research work discusses the suitability of aqueous potassium glycinate (KGly) in a PCC-pilot plant. Reference is made to measurement results with aqueous sodium glycinate (NaGly). The use of real power plant flue gas and the well-conceived dimensions of the test facility enable indus...
In this work, the performance of potassium glycinate (PG) and virgin coconut oil (VCO) mixture as potential green solvent for carbon dioxide (CO2) capture was investigated. The mixture was prepared by mixing PG with 50 weight percent (w/w%) VCO and characterised using density meter, tensiometer ...
We have previously shown that a combined system involving solvent absorption, membrane desorption and microalgal cultivation can provide an effective approach to carbon dioxide capture and utilisation (Energy Environ. Sci., 2016, 9, 1074). In this article, we evaluate aqueous solutions of monoet...
Alkyd resin based on phthalic acid, soybean oil, pentaerythritol, and a small amount on fumaric acid was synthesized and functionalized with (meth)acrylate groups. Functionalization was carried out in two different ways. These were direct acrylation of the alkyd resin using acrylic acid and N-br...
The antioxidant activity of Irganox 1010 (0.2 wt%) in aluminium oxide (2–12 wt%) – poly(ethylene-co-butyl acrylate) nanocomposites was studied. The aluminium oxide nanoparticles were in three different forms: uncoated and coated with either octyltriethoxysilane or aminopropyltriethoxysilane. T...
We present a novel UV-curable patch system that can be used to repair the cracked surfaces of chemical reservoirs. When a crack occurs in a chemical reservoir, the patch can be quickly attached to the damaged area, and then cured with a portable UV source in order to prevent the further spread o...
Chitosan nanocapsules, containing lemongrass (Cymbopogon citratus) oil (LGO), have been developed in gel form in which acrylate (Ac) was incorporated as a thickener and fabric binder. The gel was impregnated on fabric to achieve long-lasting and wash-durable mosquito repellency. The interaction ...
Polymerization of an acrylate-based ink, filled with aluminum oxide nanoparticles, which is going to be used in PolyJet™ technology (Stratasys Ltd., Israel), was investigated. In a free-radical photopolymerization of acrylates, oxygen inhibits polymerization and results in a decreased monomer co...
Enhanced ultrafiltration by the addition of poly(ammonium acrylate), with two average molecular weight 8000 Da and 15 000 Da, for the removal of Cd(II) from aqueous solutions has been studied. The solution is processed by ultrafiltration using a membrane with pore sizes (10 kDa) small enough to ...
Sulfonate-functionalized hydroxyapatite was successfully synthesized by organo-functionalization using natural phosphate and Benzenedisulfonate molecules. The modified apatites were characterized using multiple techniques, evidencing the effective incorporation of organo-functional groups into t...
In this work, a novel sequential dual-curing system based on thiol-acrylate-epoxy formulations is developed and characterized. Both reaction stages are thermally activated and sequentially relies on difference in the kinetics of the reactions involved. The viability of this system is successfull...
Photocuring of multi-functional acrylate films for applications in large scale prints and 3D objects is a radical polymerization process under seriously changing conditions of liquid monomer to solid polymer network. Although a model is available describing this process and experimental data hav...
A model is presented for photocuring of a hexanediol diacrylate (HDDA) film, where in the presence of oxygen liquid monomer cures into a solid polymer network. The model is based on an earlier version (Iedema, 2018) that has been validated in absence of oxygen. The oxygen from ambient air inhibi...
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