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Jürgen Gmehling (born January 13, 1946 in Duisburg) is a retired[1] German professor of technical and industrial chemistry at the Carl von Ossietzky University of Oldenburg.
Biography[edit]
Electrical Conductivities (ECND) The data base for electrical conductivities is a new part of the Dortmund Data Bank since 2014. Few pure component electrical conductivities have been part of the PCP data bank but the mixture electrical conductivities haven't been collected systematically before approx. 2005 and published until 2014. May 15, 1995 ) also contains program packages for reducing and J. Gmehling / Fluid Phase Equilibria 107 (1995) 1-29 9 checking the data (plausibility and consistency tests ), fitting algorithms and various graphical representation possibilities. The Dortmund Data Bank and the integrated software packages are ideal tools for this development work. Dortmund Data Bank Software Package - posted in Student: Hello,I am using DDBSP to calculate the dew point and bubble point of a sample mixture. This software allows to choose one of their three methods to calculate: Predictive Soave-Redlich-Kwong, modified Predictive Soave-Redlich-Kwong and Volume-Translated Peng-Robinson equations. My problem is that I dont know which method will give the. Dortmund Data bank – Thermophysical Properties Dichloromethane, CAS Number: 75-09-2 SpringerMaterials 2014.
DDBSP Basic Package. This essential component of the Dortmund Data Bank Software Package (DDBSP) provides data storage, data input editors, retrieval, graphical representation, import/export for all data banks including complete data directory and demo versions of all non-licensed data banks.
His career started with an apprenticeship as a laboratory assistant at the Duisburg copper works[2] before he studied chemical engineering at the engineering school in Essen and then chemistry in Dortmund and Clausthal. He received his diploma from the University of Dortmund in 1970 and his PhD (Dr. rer. nat., inorganic chemistry) in 1973. After this he worked as a scientific coworker in Dortmund before he became a private lecturer and, after his habilitation, an assistant professor.
Gmehling was appointed a full professor for technical chemistry at the University of Oldenburg in 1989 and retired in 2011. Mitsubishi delica 1991 manual.
Fields of research[edit]
Gmehling's main focus is the process development. This includes the development of software for process synthesis and process simulation as well as measurement, collection, and estimation of thermophysical properties of pure components and component mixtures. The following list summarizes fields of his scientific work but is in no way complete.
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Measurements[edit]
- Phase equilibrium data (vapor-liquid equilibria,[3] liquid-liquid equilibria, solid–liquid equilibria,[4] gas solubilities, heats of mixing, activity coefficients[5] and more)
Data collection[edit]
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Gmehling began in the 1970s with the systematic evaluation of the scientific literature, aiming to build a data bank for vapor-liquid equilibria. How to smoke crack with tin foil. These data were needed for the development of a new method for the prediction of activity coefficients named UNIFAC. This data bank is still named the Dortmund Data Bank.[6]
Development of estimation and correlation models[edit]
Gmehling developed with colleagues models for the estimation of several thermodynamic and thermophysical properties:
- Activity coefficient models like UNIFAC[7][8] (see also group contribution method) and extensions. For the further development of these widely used methods Gmehling founded an industry consortium where many international companies are participating.
- Equations of state (EOS)[9] including mixing rules for applying EOS to mixtures (see PSRK).
Software development[edit]
The following implementation of his methods are also developments:
DDBST - DDBST GmbH
- an expert system[10] for the entrainer selection for the azeotropic and extractive distillation
Awards[edit]
Gmehling has received some awards: Videojet xymark efx manual.
- Arnold-Eucken Price in 1982 [11]
- The Rosini Lectureship Award in 2008 [12]
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Rossini Lectureship Award; left: J.-P. E. Grolier; right: J. Gmehling
- The Gmelin-Beilstein-Denkmünze (Silver Medal) in 2010[13]
- The Emil Kirschbaum Medal in 2013 [14]
Publications[edit]
In my apple mac how fix this; flash required for recording video.. Gmehling has published scientific articles and books.
Selection of scientific articles[edit]
- ^http://www.presse.uni-oldenburg.de/mit/2011/181.html
- ^'Biography from DDBST company web site'. Retrieved 2017-06-27.
- ^Horstmann S., Fischer K., Gmehling J., 'Isothermal Vapor-Liquid Equilibrium and Excess Enthalpy Data for the Binary Systems Water + Sulfolane and Methanol + N-Methyl-2-pyrrolidone', J.Chem.Eng.Data, 49(6), 1499–1503, 2004
- ^Joh R., Kreutz J., Gmehling J., 'Measurement and Prediction of Ternary Solid–Liquid Equilibria', J.Chem.Eng.Data, 42(5), 886–889, 1997
- ^Gruber D., Topphoff M., Gmehling J., 'Measurement of activity coefficients at infinite dilution using gas-liquid chromatography. 8. Results for 22 solutes in tetraethylene glycol dimethyl ether and 18 solutes in triethylene glycol dibutyl ether at 303.15 K and 343.15 K', Eldata Int.Electron.J.Phys.-Chem.Data, 3, 215–224, 1997
- ^Gmehling J., Weidlich U., 'Die Dortmunder Datenbank. Basis für die Weiterentwicklung der UNIFAC-Methode', Chem.Ing.Tech., 57(5), 447–449, 1985
- ^Fredenslund Å., Gmehling J., Michelsen M.L., Rasmussen P., Prausnitz J.M., 'Computerized Design of Multicomponent Distillation Columns Using the UNIFAC Group Contribution Method for Calculation of Activity Coefficients', Ind.Eng.Chem. Process Des.Dev., 16(4), 450–462, 1977
- ^Weidlich U., Gmehling J., 'A Modified UNIFAC Model. 1. Prediction of VLE, hE, and gamma Infinite', Ind.Eng.Chem.Res., 26(7), 1372–1381, 1987
- ^Holderbaum T., Gmehling J., 'PSRK: A Group-Contribution Equation of State based on UNIFAC', Fluid Phase Equilib., 70, 251–265, 1991
- ^Möllmann C., Gmehling J., 'Auswahl selektiver Zusatzstoffe für die Rektifikation durch kombinierten Zugriff auf experimentelle und vorausberechnete Gleichgewichtsdaten', Chem.Ing.Tech., 69(3), 324–328, 1997
- ^'Biography from DDBST company web site'. Retrieved 2017-06-27.
- ^'Rossini Lectureship Award'. Retrieved 2017-06-27.
- ^'University web page'. Retrieved 2017-06-27.
- ^'ProcessNet web page'. Retrieved 2017-06-27.
External links[edit]
From UNIFAC To Modified UNIFAC To PSRK With The Help Of DDB
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