Correlation of orthobaric kinematic viscosities of liquid

Abbott, Michael M.; Kaufmann, Thomas G.

doi:10.1002/cjce.5450480116

Cited by 7 publications

(5 citation statements)

References 25 publications

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“…Abbot and Kaufman [2] describe a Corresponding States method using molecular weight, normal boiling point, critical properties and acentric factor to predict viscosities of liquid n-alkanes. Teja and Willman [ 61,62] proposed the use of characteristic viscosity, (rig = 1]at Tr = 0.6) as a third parameter in a Corresponding States method for undef'med mixtures.…”

Section: Corresponding States Methodsmentioning

confidence: 99%

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Thermodynamic and rheological properties of solid-liquid systems in coal processing. Quarterly technical report: March 1, 1993 to May 31, 1993

Ilias

1993

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Section: Corresponding States Methodsmentioning

confidence: 99%

“…In 1930, Andrade [" ] put forward the simple exponential formula rlVlt3 = ce a/_t ( 2 ) which is actually one form of the de Guzman equation.…”

Section: Literature Reviewmentioning

confidence: 99%

Thermodynamic and rheological properties of solid-liquid systems in coal processing. Quarterly technical report: March 1, 1993 to May 31, 1993

Ilias

1993

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“…It was developed by Abbott and Kaufmann (1970) The reduced densities are calculated by eq 6. It was developed by Abbott and Kaufmann (1970) The reduced densities are calculated by eq 6.…”

Section: Surface Tensionmentioning

confidence: 99%

Density, viscosity, and surface tension of coal liquids at high temperatures and pressures

Hwang¹,

Tsonopoulos²,

Cunningham³

et al. 1982

Ind. Eng. Chem. Proc. Des. Dev.

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127be described by using two OH groups. It was necessary to introduce a special glycol group. Similar "proximity effects" are discussed by Hauthal et al. (1980). Complete tables of Rk and Qk values and group-interaction parameters which include the extensions reported in this work are given in Tables IV and VII. As a result of the revisions and extensions of UNIFAC described in this work, UNIFAC now encompasses 40 different main groups and 76 subgroups. Figure 5 gives an overview of the available group-interaction parameters.The new parameter tables do not include the CCOH alcohol group introduced by Fredenslund et al. (1977). In our experience, the OH alcohol group (group no. 5 of Table VII) yields results which are as good as or better than the CCOH group. SupplementA list of references to the data on which the new UNI-FAC parameters are based and a listing of a subroutine which incorporates the new UNIFAC parameter table in generating activity coefficients may be obtained from the authors. AcknowledgmentThe authors are grateful to Deutsche Bundesministerium fur Forschung and Technologie and the Danish Statens tekniske videnskabelige Forskningsrhd for support of the UNIFAC project. In addition, we thank Professor U. Onken and our many other colleagues who in different ways have contributed to this work. Literature CitedFredenslund, Aa.; Gmehllng, J.; Rasmussen, P. "Vapor-Liquid Equilibria Using UNIFAC"; Elsevler: Amsterdam, 1977a; Chapter 5. Fredenslund, Aa.; Gmehilng. J.; Michelaen. M. L.; Rasmussen, P.; Prausnitz, J. M. Ind. Eng. Chem. Process D e s . D e v . 1977b. 16, 450. Fredenslund, Aa; Jones, R.; Prausnitz. J. M. A I C M J . 1975, 2 1 , 1086. Gmehling, J.; Onken, U.; Arlt, W. "Vapor-Liquid Equlibrlum Data Collectlon"; DECHEMA Chemistry Data Series, Vol. 1 (12 parts): Frankfurt, 1977. Gmehling, J.; Doctorlal Thesis, (Hebllitationsschrlft), University of Dortmund. BRD, under preparation, 1981. Gmehling, J; Rasmussen, P.; Fredenslund, Aa. Chem. Ing. Tech. 1980. 52(9), 724. Hauthai, W. H.; Schmelzer, J.; Qultzsch. K.; Mohle, L.; Figurski, G. 6th Int. Conf . Thermodynamics Merseburg I DDR , 1980. Kato, M. Ind. Eng. Chem. Fundem. 1980. 19, 253. Kemgny, S.; SkJoidJerrgensen, S.; Manczinger, J.; T6th, K. AIChE J . 1981 In press. Kolbe, B.; Gmehllng. J.; Onken, U. I.Chem. E . Symp. Ser. 1979, 56, 1.31 23. Maalore, B.; M. Sc. Thesis, SkjoldJerrgensen, S.; Kolbe. B.; Gmehiing, J.; Rasmussen P. Ind. Eng. Chem. Process D e s . D e v . lS79, 18, 714. Zarkarlan, J. A.; Anderson, F. E.; Boyd, J. A.; Prausnltz, J. M. Ind. Eng.Density, viscosity, and surface tension of coal liquids have been experimentally determined at temperatures up to 850 O F and pressures up to 3200 psia. Measurements were made on liquids produced with the Exxon Donor Solvent process from Illinois and Wyoming coals. Several measurements were also made to determine the effect of dissolved hydrogen on the physical properties of coal liquids. These data were used to investigate the applicability of the existing physical property correlations to coaide...

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“…A data set that allows us to test this approach is fortunately available in the literature . Very few studies attempting to estimate viscosities of coal-derived liquids are available in the literature. , Two of the methods that have been used include a liquid viscosity correlation developed for petroleum fractions by Abbott et al, and a pseudocomponent corresponding states correlation originally developed by Abbott and Kaufmann . Both these methods suffer from the limitation that they do not relate viscosity to the multiring structures and heteroatom functionalities so characteristic of coal derived liquids, unlike our model which is specifically developed for coal liquids.…”

Section: Introductionmentioning

confidence: 99%

Viscosity of Coal-Derived Liquids. 2. Application of the Model to Coal Liquid Fractions

and

Palakkal

1996

Energy Fuels

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The group contribution viscosity model for pure coal model liquids described in a previous paper (Energy Fuels 1995, 10, 333) has been successfully extended to binary liquid mixtures of coal model compounds, and a procedure has been developed to use the model for computation of viscosities of coal-derived liquids. It is shown that simple mixing rules, or even a pseudopure component model, is adequate to estimate mixture viscosity within reasonable accuracy for these compounds. For application of the model to coal-derived liquids, a data set on SRC-II coal liquid cuts available in the literature has been used. Sufficient chemical analysis data were available for these cuts to make the application of our model possible. The computational procedure involved transformation of the analytical data into functional group characterization of the coal liquid. Central to this procedure was the definition of types and distributions of various ring structures in multiring compounds. When compared to limited studies available in the literature, this model predicts viscosities of coal liquids with better accuracy. Overall, this is the first viscosity model that has been developed for the type of structures that exist in coal-derived liquids, and provides a reasonably accurate procedure for computation of viscosities of narrow boiling coal liquid cuts, a property that is necessary in designing efficient coal liquefaction processes.

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Correlation of orthobaric kinematic viscosities of liquid

Cited by 7 publications

References 25 publications

Thermodynamic and rheological properties of solid-liquid systems in coal processing. Quarterly technical report: March 1, 1993 to May 31, 1993

Thermodynamic and rheological properties of solid-liquid systems in coal processing. Quarterly technical report: March 1, 1993 to May 31, 1993

Density, viscosity, and surface tension of coal liquids at high temperatures and pressures

Viscosity of Coal-Derived Liquids. 2. Application of the Model to Coal Liquid Fractions

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