Correlation of CO2 absorption performance and electrical properties in a tri-ethanolamine aqueous solution compared to mono- and di-ethanolamine systems

2020 ◽  
Vol 27 (36) ◽  
pp. 44951-44968
Author(s):  
Sang-Jun Han ◽  
Jung-Ho Wee
Keyword(s):  
Aqueous Solution ◽  
Electrical Properties ◽  
Co2 Absorption ◽  
Absorption Performance

Carbon Capture From Natural Gas via Polymeric Membranes

2018 ◽  
pp. 3043-3055
Author(s):  
Nayef Mohamed Ghasem ◽  
Nihmiya Abdul Rahim ◽  
Mohamed Al-Marzouqi
Keyword(s):  
Liquid Phase ◽  
Low Temperature ◽  
Gas Flow ◽  
Polymeric Membrane ◽  
Co2 Absorption ◽  
Membrane Contactor ◽  
Liquid Temperature ◽  
Liquid Phase Boundary ◽  
Key Factor ◽  
Absorption Performance

Polymeric membrane is a promising energy effective and an active alternative for conventional CO2 absorption column. The type of absorption liquid and operating parameters plays an efficient role in the ultimate absorption/stripping performance using gas-liquid membrane contactor. The gas flow rate has a significant effect on CO2 absorption performance, by contrast, it has no effect on stripping performance. Further the CO2 absorption performance in membrane contactor could be enhanced by high liquid flow rates. Because the gas–liquid contact time was a key factor to enhance the stripping flux at low temperature while liquid phase boundary layer thickness and associated mass transfer resistance is important at elevated temperature. So by controlling the liquid phase velocity and the length of module at low temperature better stripping performance can be achieved. The effect of liquid temperature on absorption performance in gas-liquid is not straightforward, since the liquid temperature cooperatively influence several factors.

CO2 absorption performance in a rotating disk reactor using DBU-glycerol as solvent

2020 ◽  
Vol 28 (1) ◽  
pp. 104-113 ◽  
Author(s):  
Hualing Duan ◽  
Kun Zhu ◽  
Houfang Lu ◽  
Changjun Liu ◽  
Kejing Wu ◽  
...  
Keyword(s):  
Rotating Disk ◽  
Co2 Absorption ◽  
Rotating Disk Reactor ◽  
Absorption Performance

Realization of controllable etching for ZnO film by NH4Cl aqueous solution and its influence on optical and electrical properties

2007 ◽  
Vol 253 (11) ◽  
pp. 5161-5165 ◽  
Author(s):  
Jingchang Sun ◽  
Jiming Bian ◽  
Hongwei Liang ◽  
Jianze Zhao ◽  
Lizhong Hu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Electrical Properties ◽  
Optical And Electrical Properties ◽  
Zno Film

Controlled Recrystallization of Hematite from Two Highly Different Phases of Ferric Trihydroxide

1994 ◽  
Vol 358 ◽  
Author(s):  
Georges Denes ◽  
P. Kabro ◽  
M.C. Madamba
Keyword(s):  
Aqueous Solution ◽  
Electrical Properties ◽  
Ferric Hydroxide ◽  
Synthetic Route ◽  
Preparation Methods ◽  
Ferric Salt ◽  
Simultaneous Oxidation ◽  
Highly Sensitive ◽  
Ferric Oxides ◽  
Hydrolysis Of

ABSTRACTHematite Fe2O3, is a semiconductor, and its electrical properties are highly sensitive to the preparation methods and purity. Its precursors can be hydrated ferric oxides; however, these are usually obtained from poorly defined ferric gels, which are obtained by hydrolysis of an aqueous solution of a ferric salt by a base. We have designed a novel synthetic route to ferric hydroxide, by reaction of a peroxo-compound with an aqueous solution of a ferrous salt, which involves simultaneous oxidation of Fe(ll) to Fe(lll), and hydrolysis, in the same reaction process. The two kinds of ferric hydroxide are highly different, however, both give hematite by dehydration/recrystallization, however, the way this occurs for each is different.

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