Kinetics of the reaction of CO<sub>2</sub> with aqueous potassium salt of taurine and glycine

Kumar, Parveen; Hogendoorn, J.A.; Versteeg, Geert; Feron, Paul

doi:10.1002/aic.690490118

Cited by 206 publications

(253 citation statements)

References 22 publications

(14 reference statements)

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“…715%) such as power gener ation plants (D'Alessandro et al, 2010). Also, MEA has been reportedly used as a modifier for particulate scrubbing Song et al, 2009;Knowles et al, 2006;Gray et al, 2005;Kumar et al, 2003). Alkanolamine molecules generally possess a pair of amino (NH 2 ) and hydroxyl (OH) groups (Han et al, 2007).…”

Section: Introductionsupporting

confidence: 41%

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Surface Impregnation of Glycine to Activated Carbon Adsorbents for Dry Capture of Carbon Dioxide

Lim¹,

Adelodun²,

Kim³

et al. 2016

ajae

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In order to improve the portability of basic absorbents monoethanolamine (MEA) and glycine (Gly), both were supported on microporous activated carbon (AC). Chemical modification by alkali-metal ion exchange (of Li, Na, K) was carried out on Gly-based absorbents. All supported absorbents were subjected to CO 2 absorption capacity (pure CO 2 ) and selectivity (indoor level) tests. Textural and chemical characterizations were carried out on test sorbents. All impregnation brought about significant reduction of specific surface area and microporosity of the adsorbent Depreciation in the textural properties was found to result to reduction in pure CO 2 sorption. Contrarily, low-level CO 2 removal capacity was enhanced as the absorbent dosage increases, resulting in supported 5 molar MEA in methanol solution. Adsorption capacities were improved from 0.016 and 0.8 in raw ACs to 1.065 mmol/g for MEA's. Surface chemistry via X-ray photoelectron spectroscopy (XPS) of the supported sorbents showed the presence of amine, pyrrole and quaternary-N. In reducing sequence of potency, pyridine, amine and pyrrolic-N were noticed to contribute significantly to CO 2 selective adsorption. Furthermore, the adsorption isotherm study confirms the presence of various SNGs heterogeneously distributed on AC. The adsorption mechanism of the present AC adsorbents favored Freundlich and Langmuir isotherm at lower and higher CO 2 concentrations respectively.

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Section: Introductionsupporting

confidence: 41%

“…works (Lim et al, 2011a;Kumar et al, 2003;Mathonat et al, 1997). With regard to MEA treatment, we found that the differences in the polarity and molecular weights of the solvent had no impact on the amount of incorpo rated nitrogen content.…”

Section: Chemical Characterization By Xpsmentioning

confidence: 44%

Surface Impregnation of Glycine to Activated Carbon Adsorbents for Dry Capture of Carbon Dioxide

Lim¹,

Adelodun²,

Kim³

et al. 2016

ajae

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“…Consequently, the overall mass transfer coefficient can be expressed in a resistance-in-series model, as in Eqn (3). [13,14,15,16,17] 1…”

Section: Absorption Of Co 2 From Co 2 /N 2 Mixture Using Mga Systemmentioning

confidence: 39%

Development of thin film composite for CO₂ separation in membrane gas absorption application

Ahmad

Sunarti

Teong

et al. 2009

Asia-Pacific J Chem Eng

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The thin film composite (TFC) membrane based on polypropylene (PP) and polyvinylidenefluoride (PVDF) was prepared using glutaraldehyde as the selective layer. The percentages of glutaraldehyde were optimized to maximize the permeability of carbon dioxide (CO 2 ) and selectivity as well. The TFC with 6% w/v of glutaraldehyde based on PVDF achieved the highest permeance of 881.70 GPU and 18.08 for selectivity through the increase in effective layer and skin layer thickness. This TFC promises to provide porous and hydrophobic membranes for use in membrane gas absorption (MGA) processes. The absorption of CO 2 in deionized water was studied in MGA system in which the mass transfer coefficient (K ) and CO 2 flux decreased with increasing CO 2 concentration in feed stream.

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“…187 Potassium taurate has been proposed as a suitable amino acid salt. 135, 188 The overall pseudo-first-order constant for potassium salts of sarcosine, arginine and proline is higher that that for MEA. 189 Arylglycine amino acids substantially change the fluorescent response upon absorption of CO 2 and were suggested as CO 2 sensors.…”

mentioning

confidence: 42%

Novel High Capacity Oligomers for Low Cost CO2 Capture

Perry¹,

Grocela-Rocha²,

O’Brien³

et al. 2010

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The novel concept of using a molecule possessing both physi-sorbing and chemi-sorbing properties for post-combustion CO2 capture was explored and mixtures of aminosilicones and hydroxyterminated polyethers had the best performance characteristics of materials examined. The optimal solvent composition was a 60/40 blend of GAP-1/TEG and a continuous bench-top absorption/desorption unit was constructed and operated. Plant and process models were developed for this new system based on an existing coal-fired power plant and data from the laboratory experiments were used to calculate an overall COE for a coal-fired power plant fitted with this capture technology. A reduction in energy penalty, from 30% to 18%, versus an optimized 30% MEA capture system was calculated with a concomitant COE decrease from 73% to 41% for the new aminosilicone solvent system. 3 Executive SummaryThe novel concept of using a molecule possessing both physi-sorbing and chemi-sorbing properties for post-combustion CO2 capture was explored. A variety of candidate materials with physi-sorbing backbones and chemically reactive peripheral groups were considered with the final selection primarily focusing on aminosilicones. A small effort was also devoted to derivatized plant oils.None of the plant oil derivatives were effective in absorbing CO2 in laboratory experiments. Model reactions suggest that both intra-molecular H-bonding between adjacent hydroxyl and amino groups and potential micelle formation suppressed reactions with CO2. This route was abandoned in favor of the aminosilicones.A variety of aminosilicones with differing architectures and type and placement of amine groups were examined both experimentally and computationally for physical properties as well as CO2 capture efficacy. Modeling indicated that the heat reaction of sterically hindered amines with CO2 was lower than for unhindered amines and that less basic amines also decreased the heat of reaction. This provided options to tune the heat of reaction for optimal plant performance. Physical property predictions were also made for viscosity, vapor pressure, density and CO2 solubility. Limited experimental data confirmed the accuracy of the density and solubility models as well as trend predictability in heats of reaction. However, viscosity predictions were not accurately modeled and vapor pressure data was unavailable.Synthetically, GEN 1 aminosilicone solvents with linear, branched, cyclic and star architectures were made that possessed mono and di-amine groups while other solvent candidates had varying degrees of steric hindrance. Oligomers as well as discrete small molecules were prepared and evaluated. These included solvents with covalently bound polyether units. CO2-capture experiments were performed using both high throughput screening (HTS) techniques as well as small-scale laboratory testing. Mass transfer issues prevented the HTS methodology from being as useful as anticipated. However, efficient mixing on the lab-scale provided reliable data. These experiment...

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Kinetics of the reaction of CO₂ with aqueous potassium salt of taurine and glycine

Cited by 206 publications

References 22 publications

Surface Impregnation of Glycine to Activated Carbon Adsorbents for Dry Capture of Carbon Dioxide

Surface Impregnation of Glycine to Activated Carbon Adsorbents for Dry Capture of Carbon Dioxide

Development of thin film composite for CO₂ separation in membrane gas absorption application

Novel High Capacity Oligomers for Low Cost CO2 Capture

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Kinetics of the reaction of CO2 with aqueous potassium salt of taurine and glycine

Cited by 206 publications

References 22 publications

Surface Impregnation of Glycine to Activated Carbon Adsorbents for Dry Capture of Carbon Dioxide

Surface Impregnation of Glycine to Activated Carbon Adsorbents for Dry Capture of Carbon Dioxide

Development of thin film composite for CO2 separation in membrane gas absorption application

Novel High Capacity Oligomers for Low Cost CO2 Capture

Contact Info

Product

Resources

About

Kinetics of the reaction of CO₂ with aqueous potassium salt of taurine and glycine

Development of thin film composite for CO₂ separation in membrane gas absorption application