Aqueous Li+/Al3+ alkaline solution for CO2 capture and the massive Li–Al–CO3 hydrotalcite precipitation during the interaction between CO2 gas and the Li+/Al3+ aqueous solution

2013 ◽  
Vol 1 (46) ◽  
pp. 14773 ◽  
Author(s):  
Meng-Chang Lin ◽  
Fu-Tsung Chang ◽  
Jun-Yen Uan
Keyword(s):  
Aqueous Solution ◽  
Co2 Capture ◽  
Alkaline Solution ◽  
Co2 Gas

Laboratory-scale experiment on a novel mineralization-based method of CO2 capture using alkaline solution

Energy ◽  
2017 ◽  
Vol 124 ◽  
pp. 589-598 ◽  
Author(s):  
Sangwon Park ◽  
Kyungsun Song ◽  
Hwanju Jo
Keyword(s):  
Co2 Capture ◽  
Alkaline Solution ◽  
Laboratory Scale ◽  
Scale Experiment

scholarly journals Advance in Post-Combustion CO2 Capture with Alkaline Solution: A Brief Review

2012 ◽  
Vol 14 ◽  
pp. 1515-1522 ◽  
Author(s):  
Yuanchang Peng ◽  
Bingtao Zhao ◽  
Leilei Li
Keyword(s):  
Co2 Capture ◽  
Alkaline Solution

CO2 Capture in Amine-Based Aqueous Solution: Role of the Gas-Solution Interface

2011 ◽  
Vol 50 (43) ◽  
pp. 10178-10181 ◽  
Author(s):  
Tanza Lewis ◽  
Manfred Faubel ◽  
Bernd Winter ◽  
John C. Hemminger
Keyword(s):  
Aqueous Solution ◽  
Co2 Capture ◽  
Solution Interface

CO2 Capture in Amine-Based Aqueous Solution: Role of the Gas-Solution Interface

2011 ◽  
Vol 123 (43) ◽  
pp. 10360-10363 ◽  
Author(s):  
Tanza Lewis ◽  
Manfred Faubel ◽  
Bernd Winter ◽  
John C. Hemminger
Keyword(s):  
Aqueous Solution ◽  
Co2 Capture ◽  
Solution Interface

Dissolution of spent nuclear fuel fragments at high alkaline conditions under H2 overpressure

MRS Advances ◽  
2016 ◽  
Vol 1 (62) ◽  
pp. 4163-4168
Author(s):  
E. González-Robles ◽  
M. Herm ◽  
V. Montoya ◽  
N. Müller ◽  
B. Kienzler ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Partial Pressure ◽  
Nuclear Fuel ◽  
Alkaline Solution ◽  
Spent Nuclear Fuel ◽  
Dissolution Tests ◽  
The Matrix ◽  
Alkaline Conditions ◽  
Long Term Behavior

ABSTRACTThe long-term behavior of the UO2 fuel matrix under conditions of the Belgian “Supercontainer design” was investigated by dissolution tests of high burn-up spent nuclear fuel (SNF) in high alkaline solution under 40 bar of (Ar + 8%H2) atmosphere. Four fragments of SNF, obtained from a pellet previously leached during two years, were exposed to young cement water with Ca (YCWCa) under 3.2 bar H2 partial pressure in four single/independent autoclave experiments for a period of 59, 182, 252 and 341 days, respectively. After a decrease of the concentration of dissolved 238U, which is associated with a reduction of U(VI) to U(IV), the concentration of 238U in solution is constant in the experiments running for 252 and 341 days. These observations indicate an inhibition of the matrix dissolution due to the presence of H2. A slight increase in the concentration of 90Sr and 137Cs in the aqueous solution indicates that there is still dissolution of the grain boundaries. These findings are similar to those reported for spent nuclear fuel corrosion in synthetic near neutral pH solutions.

Characterization of Metakaolin-Based Materials for Dye Adsorption from Aqueous Solution

2018 ◽  
Vol 283 ◽  
pp. 88-94
Author(s):  
Narumon Lertcumfu ◽  
Pharatree Jaita ◽  
Gobwute Rujijanagul ◽  
Tawee Tunkasiri
Keyword(s):  
Aqueous Solution ◽  
Aluminum Oxide ◽  
Distribution Coefficient ◽  
Alkaline Solution ◽  
Dye Adsorption ◽  
Adsorption Properties ◽  
High Adsorption ◽  
Uptake Capacity ◽  
High Adsorption Capacity

The properties of metakaolin-based materials were investigated. The studied materials were prepared by mixing metakaolin and aluminum oxide in alkaline solution. The obtained samples were cast into plastic molds and then left at 27°C for 24 h. The properties of the materials were investigated using XRD, FTIR, and SEM. The obtained results suggested that reaction of the mixed materials occurred. The adsorption properties of the materials, including removal efficiency, distribution coefficient, and uptake capacity were determined. The obtained results revealed that the studied materials exhibited high adsorption capacity, which is good for the adsorbent applications.

scholarly journals Ab Initio Study of CO2 Capture Mechanisms in Monoethanolamine Aqueous Solution: Reaction Pathways from Carbamate to Bicarbonate

2013 ◽  
Vol 37 ◽  
pp. 400-406 ◽  
Author(s):  
Yoichi Matsuzaki ◽  
Hidetaka Yamada ◽  
Firoz A. Chowdhury ◽  
Takayuki Higashii ◽  
Shingo Kazama ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ab Initio ◽  
Co2 Capture ◽  
Reaction Pathways ◽  
Ab Initio Study ◽  
Solution Reaction

The aggregation and reaction with oxygen of the tetrasodium salt of cobalt phthalocyanine-4,4',4'',4'''-tetrasulphonic acid

1973 ◽  
Vol 26 (2) ◽  
pp. 319 ◽  
Author(s):  
LC Gruen ◽  
RJ Blagrove
Keyword(s):  
Aqueous Solution ◽  
Ionic Strength ◽  
Molecular Oxygen ◽  
Absorption Spectra ◽  
Alkaline Solution ◽  
Cobalt Phthalocyanine ◽  
Visible Absorption ◽  
Reversible Addition ◽  
Dimeric Form ◽  
Low Ionic Strength

The reversible addition of molecular oxygen to the tetrasodium salt of cobalt phthalocyanine-4,4?,4?,4??-tetrasulphonic acid in aqueous solution has been confirmed. Visible absorption spectra of the monomeric and dimeric species and of the oxygen adduct have been determined. A monomer-dimer system prevails at neutral pH, low ionic strength, and low dye concentrations. The oxygen adduct and the dimeric form of the dye predominate in alkaline solution.

scholarly journals Absorption capacity for CO2 capture process using DEAE-AMP aqueous solution

2018 ◽  
Vol 186 ◽  
pp. 012073
Author(s):  
C Li ◽  
Y X Chu ◽  
L M Wang ◽  
X Feng ◽  
D Fu
Keyword(s):  
Aqueous Solution ◽  
Co2 Capture ◽  
Absorption Capacity ◽  
Capture Process

scholarly journals CO2 Capture by Absorption in Activated Aqueous Solutions of N,N-Diethylethanoloamine

2017 ◽  
Vol 24 (2) ◽  
pp. 239-248 ◽  
Author(s):  
Ewelina Kruszczak ◽  
Hanna Kierzkowska-Pawlak
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Co2 Capture ◽  
Tertiary Amine ◽  
Absorption Rate ◽  
Absorption Process ◽  
Promising Technique ◽  
Gas Streams ◽  
Hindered Amines ◽  
Amine Solutions

Abstract The CO2 absorption process using aqueous amine solutions has been the most promising technique used for the removal of CO2 from gas streams in energy sector. In recent years, many researchers tested solutions which are composed of several compounds: a slow reacting tertiary amine- and a fast amine acting as an activator. In this paper, the CO2 absorption rate in an aqueous solution of N,N-diethylethanoloamine (DEEA) and activated solutions DEEA is investigated experimentally. The activators considered are sterically hindered amines: 2-amino-2-methyl-1-propanol (AMP), 2-amino-2-methyl-1,3-propanediol (AMPD) and N-methyl-1,3-propanediamine (MAPA) from the group of polyamines. The experiments were conducted over the temperature range of 303-333 K and the total amine concentration of 2 M. From the CO2 absorption experiments into mixed aqueous solutions of DEEA and MAPA, it was found that the addition of small amounts of MAPA into aqueous DEEA solutions has a significant effect on the enhancement of the CO2 absorption rate. The application of hindered amines: AMP or AMP as activators resulted in a marginally improvement of the absorption rate of CO2.

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