Measurements and modeling of CO2 solubility in 1,8-diazabicyclo-[5.4.0]-undec-7-ene—Glycerol solutions

Ostonen, Alexandr; Sapei, Erlin; Uusi–Kyyny, Petri; Klemelä, Aliisa; Alopaeus, Ville

doi:10.1016/j.fluid.2014.04.021

Cited by 32 publications

(24 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[22] forD BU is larger,s uch that the k' g value would decrease with increasingt emperature. The value of k l would increasea saresult of increases in diffusivity with temperature.…”

Section: Rationalizing the Inverse Temperature Dependencementioning

confidence: 95%

“…However,t he increase in Henry'sc onstant with temperaturem easuredb yO stenene tal. [22] forD BU is larger,s uch that the k' g value would decrease with increasingt emperature. Furthermore, this comparison predicts that the effect will be greatera tl ower solventl oadings, which is consistent with our observations (Figure 2a nd Figure 4).…”

Section: Data Setmentioning

confidence: 95%

“…Physically dissolved CO 2 transport is expected to be of increased importance relative to aqueous solvents as ar esult of the high physical solubility of CO 2 in organic liquids compared with the poor CO 2 solubility in water.C O 2 has been reported by Carroll et al to be physically dissolved in water up to am ole fraction of 0.00044 (P = 1atm CO 2 at T = 40 8C), [21] whereas the physical CO 2 solubility in DBU has been reported by Ostonen et al to be 0.0132 mole fraction (P = 1atm CO 2 at T = 40 8C). [22] Thus, CO 2 solubility in CO 2 BOL solvents can be thirty times higher than in aqueous amines, and it is likely that ah igher CO 2 concentration can drive the liquid-stage kinetics and provide ah igher drivingf orce.…”

Section: Data Setmentioning

confidence: 99%

See 2 more Smart Citations

Measuring the Absorption Rate of CO₂ in Nonaqueous CO₂‐Binding Organic Liquid Solvents with a Wetted‐Wall Apparatus

et al. 2015

View full text Add to dashboard Cite

The kinetics of the absorption of CO2 into two nonaqueous CO2-binding organic liquid (CO2 BOL) solvents were measured at T=35, 45, and 55 °C with a wetted-wall column. Selected CO2 loadings were run with a so-called "first-generation" CO2 BOL, comprising an independent base and alcohol, and a "second-generation" CO2 BOL, in which the base and alcohol were conjoined. Liquid-film mass-transfer coefficient (k'g ) values for both solvents were measured to be comparable to values for monoethanolamine and piperazine aqueous solvents under a comparable driving force, in spite of far higher solution viscosities. An inverse temperature dependence of the k'g value was also observed, which suggests that the physical solubility of CO2 in organic liquids may be making CO2 mass transfer faster than expected. Aspen Plus software was used to model the kinetic data and compare the CO2 absorption behavior of nonaqueous solvents with that of aqueous solvent platforms. This work continues our development of the CO2 BOL solvents. Previous work established the thermodynamic properties related to CO2 capture. The present paper quantitatively studies the kinetics of CO2 capture and develops a rate-based model.

show abstract

“…[22] forD BU is larger,s uch that the k' g value would decrease with increasingt emperature. The value of k l would increasea saresult of increases in diffusivity with temperature.…”

Section: Rationalizing the Inverse Temperature Dependencementioning

confidence: 95%

Section: Data Setmentioning

confidence: 95%

Section: Data Setmentioning

confidence: 99%

See 1 more Smart Citation

Measuring the Absorption Rate of CO₂ in Nonaqueous CO₂‐Binding Organic Liquid Solvents with a Wetted‐Wall Apparatus

et al. 2015

View full text Add to dashboard Cite

show abstract

“…For mTBD, the experimental data presented in this article were used. Literature data were used for DBN, DBU, and TMG [28][29][30][31][32]. To solve for the parameters, we used the differential evolution solver [17] implemented in the SciPy package [18] for Python.…”

Section: Modeling Using Pc-saft Equation Of Statementioning

confidence: 99%

“…3. For DBN, DBU and TMG PC-SAFT parameters were fit in this study using literature data [29][30][31][32][33] (see Sect. 3.7), and PC-SAFT was then used for calculating values for comparison.…”

Section: Liquid Compressed Density and Derivative Propertiesmentioning

confidence: 99%

Physical Properties of 7-Methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (mTBD)

et al. 2019

Self Cite

View full text Add to dashboard Cite

7-Methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (mTBD) has useful catalytic properties and can form an ionic liquid when mixed with an acid. Despite its potential usefulness, no data on its thermodynamic and transport properties are currently available in the literature. Here we present the first reliable public data on the liquid vapor pressure (temperature from 318.23 K to 451.2 K and pressure from 11.1 Pa to 10 000 Pa), liquid compressed density (293.15 K to 473.15 K and 0.092 MPa to 15.788 MPa), liquid isobaric heat capacity (312.48 K to 391.50 K), melting properties, liquid thermal conductivity (299.0 K to 372.9 K), liquid refractive index (293.15 K to 343.15 K), liquid viscosity (290.79 K to 363.00 K), liquid-vapor enthalpy of vaporization (318.23 K to 451.2 K), liquid thermal expansion coefficient (293.15 K to 473.15 K), and liquid isothermal compressibility of mTBD (293.15 K to 473.15). The properties of mTBD were compared with those of other relevant compounds, including 1,5-diazabicyclo(4.3.0)non-5-ene (DBN), 1,8-diazabicyclo[5.4.0]undec-7ene (DBU), and 1,1,3,3-tetramethylguanidine (TMG). We used the PC-SAFT equation of state to model the thermodynamic properties of mTBD, DBN, DBU, and TMG. The PC-SAFT parameters were optimized using experimental data.

show abstract

Basic synthesis and solvatochromic parameters in switchable solvents

Anwar

Shakeel

Ahamed

2022

Green Sustainable Process for Chemical and Environmental Engineering and Science

View full text Add to dashboard Cite

Measurements and modeling of CO2 solubility in 1,8-diazabicyclo-[5.4.0]-undec-7-ene—Glycerol solutions

Cited by 32 publications

References 17 publications

Measuring the Absorption Rate of CO₂ in Nonaqueous CO₂‐Binding Organic Liquid Solvents with a Wetted‐Wall Apparatus

Measuring the Absorption Rate of CO₂ in Nonaqueous CO₂‐Binding Organic Liquid Solvents with a Wetted‐Wall Apparatus

Physical Properties of 7-Methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (mTBD)

Basic synthesis and solvatochromic parameters in switchable solvents

Contact Info

Product

Resources

About

Measurements and modeling of CO2 solubility in 1,8-diazabicyclo-[5.4.0]-undec-7-ene—Glycerol solutions

Cited by 32 publications

References 17 publications

Measuring the Absorption Rate of CO2 in Nonaqueous CO2‐Binding Organic Liquid Solvents with a Wetted‐Wall Apparatus

Measuring the Absorption Rate of CO2 in Nonaqueous CO2‐Binding Organic Liquid Solvents with a Wetted‐Wall Apparatus

Physical Properties of 7-Methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (mTBD)

Basic synthesis and solvatochromic parameters in switchable solvents

Contact Info

Product

Resources

About

Measuring the Absorption Rate of CO₂ in Nonaqueous CO₂‐Binding Organic Liquid Solvents with a Wetted‐Wall Apparatus

Measuring the Absorption Rate of CO₂ in Nonaqueous CO₂‐Binding Organic Liquid Solvents with a Wetted‐Wall Apparatus