scholarly journals Binary System of Polyethylene Glycol 200 (1) + 3-Dimethylamino-1-propylamine (2) for CO2 Absorption: Thermophysical Properties and Spectroscopic Study

ACS Omega ◽  
2021 ◽  
Author(s):  
Xiaoqing Yang ◽  
Zimin Liu ◽  
Tianxiang Zhao ◽  
Jiarui Gu ◽  
Fei Liu ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Binary System ◽  
Spectroscopic Study ◽  
Thermophysical Properties ◽  
Co2 Absorption ◽  
Polyethylene Glycol 200

scholarly journals Thermophysical Properties and CO2 Absorption of Ammonium-Based Protic Ionic Liquids Containing Acetate and Butyrate Anions

Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 820 ◽  
Author(s):  
Yunus ◽  
Halim ◽  
Wilfred ◽  
Murugesan ◽  
Lim ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Thermophysical Properties ◽  
Molecular Volume ◽  
Co2 Absorption ◽  
Thermal Coefficient ◽  
Empirical Correlations ◽  
Protic Ionic Liquids ◽  
Thermogravimetric Analyzer ◽  
Density Values ◽  
Thermal Stability Of

Ionic liquids, which are classified as new solvents, have been identified to be potential solvents in the application of CO2 capture. In this work, six ammonium-based protic ionic liquids, containing ethanolammonium [EtOHA], tributylammonium [TBA], bis(2-ethylhexyl)ammonium [BEHA] cations, and acetate [AC] and butyrate [BA] anions, were synthesized and characterized. The thermophysical properties of the ammonium-based protic ionic liquids were measured. Density, , and dynamic viscosity, , were determined at temperatures between 293.15 K and 363.15 K. The density and viscosity values were correlated using empirical correlations and the thermal coefficient expansion, p, and molecular volume, Vm, were estimated using density values. The thermal stability of the ammonium-based protic ionic liquids was investigated using thermogravimetric analyzer (TGA) at a heating rate of 10 C.min‒1. The CO2 absorption of the ammonium-based ionic liquids were measured up to 20 bar at 298.15 K. From the experimental results, [BEHA][BA] had the highest affinity towards CO2 with the mol fraction of CO2 absorbed approaching 0.5 at 20 bar. Generally, ionic liquids with butyrate anions have better CO2 absorption than that of acetate anions while [BEHA] ionic liquids have higher affinity towards CO2 followed by [TBA] and [EtOHA] ionic liquids.

Corrosion Inhibition of Polyethylene Glycol for Magnesium Alloy AZ91 at Different Temperatures

2014 ◽  
Vol 1015 ◽  
pp. 692-695
Author(s):  
Wei Shang ◽  
Zhou Lan Yin ◽  
Yu Qing Wen ◽  
Xu Feng Wang
Keyword(s):  
Polyethylene Glycol ◽  
Magnesium Alloy ◽  
Corrosion Inhibition ◽  
Inhibition Efficiency ◽  
Nacl Solution ◽  
Alloy Az91 ◽  
Magnesium Alloy Az91 ◽  
Polyethylene Glycol 200 ◽  
Different Temperatures ◽  
Corrosion Inhibition Efficiency

the corrosion inhibition of polyethylene glycol 200 for magnesium alloy AZ91 in 1% NaCl solution at different temperatures are studied. The morphology of the sample at 25°C is analyzed by SEM. And CHI600C electrochemistry workstation is employed to investigate the corrosion inhibition of the samples. The results show that the corrosion inhibition efficiency of polyethylene glycol 200 to the magnesium alloy AZ91 is affected by temperature. Polyethylene glycol 200 has superior corrosion inhibition to the magnesium alloy at the temperature of 25°C.

Sign in / Sign up

Export Citation Format

Share Document