Self-Diffusion of Gaseous Carbon Dioxide in the Critical Region

1976 ◽  
Vol 80 (2) ◽  
pp. 157-163 ◽  
Author(s):  
J. S. Duffield ◽  
M. J. Harris
Keyword(s):  
Carbon Dioxide ◽  
Critical Region ◽  
Self Diffusion ◽  
Gaseous Carbon Dioxide

Carbon-13 magnetic shielding in gaseous carbon dioxide

1979 ◽  
pp. 863 ◽  
Author(s):  
Karol Jackowski ◽  
William T. Raynes
Keyword(s):  
Carbon Dioxide ◽  
Magnetic Shielding ◽  
Gaseous Carbon Dioxide

Prebiotic entropy flow: The role of gaseous carbon dioxide

1986 ◽  
Vol 16 (3-4) ◽  
pp. 379-380
Author(s):  
R. E. Clapp
Keyword(s):  
Carbon Dioxide ◽  
Entropy Flow ◽  
Gaseous Carbon Dioxide

The ν1 Band of Carbon Dioxide in Pressure-Induced Absorption. II. Density and Temperature Dependence of the Intensity; Critical Phenomena

1972 ◽  
Vol 50 (12) ◽  
pp. 1355-1362 ◽  
Author(s):  
L. Mannik ◽  
J. C. Stryland
Keyword(s):  
Carbon Dioxide ◽  
Absorption Coefficient ◽  
Density Range ◽  
Induced Absorption ◽  
Lennard Jones ◽  
Molecular Potential ◽  
Band Profile ◽  
Gaseous Carbon Dioxide ◽  
Interaction Term ◽  
Path Lengths

The ν1 band of gaseous carbon dioxide has been studied in pressure-induced absorption at temperatures of ~ 190, ~ 300, and ~ 470 K, over a density range from 0.5 to 300 amagat, and with path lengths from 0.007 to 56 m. The observed temperature variation of the binary absorption coefficient can be satisfactorily accounted for only by adding a quadrupole–quadrupole interaction term to the usual Lennard–Jones model for the inter-molecular potential. The band profile is in agreement with the theory of quadrupole-induced absorption. There is some increase in the intensity of the band near the critical point due to the divergence of the correlation length. A very marked increase in the intensity is possibly prevented by the "cancellation effect".

Experimental and Numerical Modeling of Gaseous Carbon Dioxide Injecting Into Aqueous Water in Bottle Filler System

2001 ◽  
Author(s):  
Y. H. Zheng ◽  
R. S. Amano
Keyword(s):  
Carbon Dioxide ◽  
Numerical Modeling ◽  
Tap Water ◽  
Co2 Injection ◽  
Operating Characteristics ◽  
Two Phase ◽  
Carbonation Process ◽  
Filling System ◽  
Gas System ◽  
Gaseous Carbon Dioxide

Abstract An efficient enhancement of the carbonation rate in the bottle filling stage can substantially increase the production in beverage industries. The bottle filling system currently used in most of the manufacturers can still be improved for a better performance of carbonation by designing the injection tube system. This paper reports on an experimental and numerical mass transfer modeling that can simulate the dissolution process of gaseous carbon dioxide into aqueous water in the bottle filler system. In order to establish the operating characteristics of the bottle filler system, an ordinary tap water and pure carbon dioxide were used as the liquid-gas system. The two-phase numerical modeling was developed that can serve as a framework for the continuous improvement of the design of the carbonation process in the bottle filler system. For an optimal design of CO2 injection tube and flow conditions, a computational fluid dynamics (CFD) approach is one of the most power tools. However, since only limited experimental data are available in the open literature to verify the computational results, an experiment study was performed to obtain measurements of CO2 level, temperature, and pressure during the carbonation process in the bottle filled with liquid. Both experimental and numerical studies of various flow condition and different sizes of injection tube are presented in this paper.

The Raman Spectrum of Gaseous Carbon Dioxide

1933 ◽  
Vol 44 (8) ◽  
pp. 691-691
Author(s):  
Arthur Adel
Keyword(s):  
Carbon Dioxide ◽  
Raman Spectrum ◽  
Gaseous Carbon Dioxide

Effect of high pressure gaseous carbon dioxide on the germination of bacterial spores

2004 ◽  
Vol 91 (2) ◽  
pp. 209-213 ◽  
Author(s):  
S. Furukawa ◽  
T. Watanabe ◽  
T. Tai ◽  
J. Hirata ◽  
N. Narisawa ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Bacterial Spores ◽  
Gaseous Carbon Dioxide

Salen ligand complexes as electrocatalysts for direct electrochemical reduction of gaseous carbon dioxide to value added products

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3581-3589 ◽  
Author(s):  
Surya Singh ◽  
Bedika Phukan ◽  
Chandan Mukherjee ◽  
Anil Verma
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Reduction ◽  
Value Added ◽  
Salen Complexes ◽  
Gaseous Carbon Dioxide ◽  
Salen Ligand ◽  
Centrosymmetric Molecule ◽  
Value Added Products

CO2, being a linear and centrosymmetric molecule, is very stable, and the electrochemical reduction of CO2 requires energy. However, the salen complexes are found to be very efficient to minimize overpotential as compared to their metal counterparts.

Separation of xylene isomers on silicalite in supercritical and gaseous carbon dioxide

1990 ◽  
Vol 29 (3) ◽  
pp. 502-504 ◽  
Author(s):  
Chung Sung Tan ◽  
Jeng Leei Tsay
Keyword(s):  
Carbon Dioxide ◽  
Gaseous Carbon Dioxide ◽  
Xylene Isomers

Computation of Thermodynamic Properties of Carbon Dioxide in the Range 0–750 Deg C

1970 ◽  
Vol 92 (3) ◽  
pp. 301-309 ◽  
Author(s):  
G. Angelino ◽  
E. Macchi
Keyword(s):  
Carbon Dioxide ◽  
Thermal Properties ◽  
High Temperature ◽  
Thermodynamic Properties ◽  
Thermodynamic Functions ◽  
Critical Region ◽  
Density Measurement ◽  
Working Fluid ◽  
Power Cycles ◽  
Wide Range

The computation of power cycles employing carbon dioxide as working fluid and extending down to the critical region requires the knowledge of the thermodynamic properties of CO2 within a wide range of pressures and temperatures. Available data are recognized to be insufficient or insufficiently accurate chiefly in the vicinity of the critical dome. Newly published density and specific heat measurements are employed to compute thermodynamic functions at temperatures between 0 and 50 deg C, where the need of better data is more urgent. Methods for the computation of thermal properties from density measurement in the low and in the high temperature range are presented and discussed. Results are reported of the computation of entropy and enthalpy of CO2 in the range 150–750 deg C and 40–600 atm. The probable precision of the tables is inferred from an error analysis based on the generation, by means of a computer program of a set of pseudoexperimental points which, treated as actual measurements, yield useful information about the accuracy of the calculation procedure.

Emission of Gaseous Carbon Dioxide from Salt-Marsh Sediments and Its Relation to Other Carbon Losses

Estuaries ◽  
1986 ◽  
Vol 9 (1) ◽  
pp. 9 ◽  
Author(s):  
James T. Morris ◽  
Gary J. Whiting
Keyword(s):  
Carbon Dioxide ◽  
Salt Marsh ◽  
Gaseous Carbon Dioxide ◽  
Marsh Sediments ◽  
Salt Marsh Sediments ◽  
Carbon Losses
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