Download or read book Vapor liquid Equilibrium of Model Coal derived Compounds with Methanol at Elevated Temperatures and Pressures written by Mark Charles Thies and published by . This book was released on 1985 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CRC Handbook of Applied Thermodynamics written by David A. Palmer and published by CRC Press. This book was released on 2019-07-23 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical handbook features an overview of the importance of physical properties and thermodynamics; and the use of thermo-dynamics to predict the extent of reaction in proposed new chem-ical combinations. The use of special types of data and pre-diction methods to develop flowsheets for probing projects; and sources of critically evaluated data, dividing the published works into three categories depending on quality are given. Methods of doing one's own critical evaluation of literature, a list of known North American contract experimentalists with the types of data mea-sured by each, methods for measuring equilibrium data, and ther-modynamic concepts to carry out process opti-mization are also featured.
Download or read book High Temperature High Pressure Thermodynamic Measurements for Coal Model Compounds Semiannual Technical Progress Report September 1 1995 February 29 1996 written by and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of this project is to develop a better thermodynamic model for predicting properties of high-boiling coal derived liquids, especially the phase equilibria of different fractions at elevated temperatures and pressures. The development of such a model requires data on vapor-liquid equilibria (VLE), enthalpy, and heat capacity which would be experimentally determined for binary systems of coal model compounds and compiled into a database. The data will be used to refine existing models such as UNIQUAC and UNIFAC. A M.S. graduate student Mr. Ahmad Al-Ghamdi has been recruited to work on this project. The flow VLE apparatus designed and built for a previous project has been upgraded and recalibrated for data measurements for this project. The modifications include better and more accurate sampling technique and addition of a digital recorder to monitor temperature, pressure and liquid level inside the VLE cell. VLE data measurements for system benzene-ethylbenzene have begun. The vapor and liquid compositions will be measured using the Perkin-Elmer Auto-system gas chromatograph. A capillary column made by Supelco has been purchased for the analysis. For enthalpy and heat capacity measurements, SETARAM C-80 calorimeter has been purchased and installed. The instrument can be used for calorimetric property measurements at temperatures up to 300°C and pressures up to 1500 psi. Enthalpy measurements for the system benzene-ethylbenzene have begun. Simultaneously, we have undertaken the design of a calorimetric cell that will allow enthalpy measurements at pressures up to 10000 psi. In this report the VLE apparatus and the preliminary work completed for the VLE measurements for the benzene-ethylbenzene system are described. A description of the calorimeter and the measured enthalpy data for the benzene-ethylbenzene system will be included in the next report. 3 figs., 5 tabs.
Download or read book Thermodynamic and Transport Properties of Coal Liquids written by Constantine Tsonopoulos and published by . This book was released on 1986-04-03 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: A monograph for the student, specialist, and engineer working on coal liquefaction process development and design. Focuses on thermodynamic and transport properties needed in heat and material balances, and equipment design calculations. Presents data needs for process design, all coal liquefaction processes, and methods for characterizing coal liquids and model compounds. Discusses properties such as vapor, vapor-liquid equilibria, thermal, density, surface tension and transport properties. Includes look at future needs.
Download or read book High Pressure high Temperature Vapor Liquid Equilibrium Study of Light Gases in Hydrogen coal Liquid Model Compound Systems Using Perturbation Chromatography written by Tor Kristian Kragas and published by . This book was released on 1983 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase equilibrium and volumetric properties of coal derived fluids written by Oklahoma State University. School of Chemical Engineering and published by . This book was released on 1979 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data have been obtained at 100°C on the volumetric properties of three binary gas systems: hydrogen + methane, hydrogen + carbon dioxide and methane + carbon dioxide. Interaction virial coefficients evaluated from these data are estimated to be precise to ± 0.5 cc/gmol. In the vapor--liquid equilibrium study, the equipment and analytical techniques have been refined and data acquisition has begun. K-values have been measured at 220°F and pressures from 200 to 2,000 psia on the multicomponent system methane, ethane, propane, toulene, 1-methylnaphthalene. Precision of the data is estimated to vary from 2% for methane to 10% for 1-methylnaphthalene.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1991 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase Equilibrium and Volumetric Properties of Coal derived Fluids written by Oklahoma State University. School of Chemical Engineering and published by . This book was released on 1979 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data have been obtained at 100°C on the volumetric properties of three binary gas systems: hydrogen + methane, hydrogen + carbon dioxide and methane + carbon dioxide. Interaction virial coefficients evaluated from these data are estimated to be precise to ± 0.5 cc/gmol. In the vapor--liquid equilibrium study, the equipment and analytical techniques have been refined and data acquisition has begun. K-values have been measured at 220°F and pressures from 200 to 2,000 psia on the multicomponent system methane, ethane, propane, toulene, 1-methylnaphthalene. Precision of the data is estimated to vary from 2% for methane to 10% for 1-methylnaphthalene.
Download or read book Determination of Vapor Liquid Equilibrium Data for the Methanol Water System written by Geraldine Anne Clifford and published by . This book was released on 1951 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methanol and water, at ordinary temperatures form a two-phase, two-component system, which according to the phase rule, can be completely described by two independent variables. For solutions of varying concentrations, either the boiling points at constant pressure, or the equilibrium-vapor pressures at constant temperature are useful for the study of the system. However, because the relationship of partial and total vapor pressure to composition at constant temperature can be checked theoretically by means of the equations discussed below, this is the criteria most often used for the study.
Download or read book Coal Abstracts written by and published by . This book was released on 1987 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Temperature high Pressure Vapor Liquid Equilibrium and Chromatographic Characterization of Coal Liquids written by Shaukat Mahmood and published by . This book was released on 1994 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermodynamic Model for Calorimetric and Phase Coexistence Properties of Coal Derived Fluids written by and published by . This book was released on 1991 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: On September 1, 1989 work was initiated on a project to extend the available vapor-liquid equilibrium (VLE) model for coal fluids to allow satisfactory predictions of excess enthalpies of coal liquids at high pressures. The available vapor liquid equilibrium model was developed with support from previous grant from DOE-PETC (Grant no. DE-FG22-89PC90541). The current project also involves measurement of some model compound VLE data and chromatographic characterization of coal liquids for distribution of heteroatoms. A computational thermodynamic model for VLE, excess enthalpies and heat capacities of coal derived liquids has been developed. The model uses the modified UNIFAC correlation for the liquid phase. Some unavailable UNIFAC interactions parameters have been regressed from experimental VLE and excess enthalpy data. The computations are carried out using the method of continuous thermodynamics. Mode is used to derive interesting conclusions on the effect of oxygen, nitrogen, and sulfur heteroatoms on the thermodynamic properties of coal liquids. When compared with limited experimental data available for coal liquids the model shows good agreement. Some progress has been made on binary VLE measurements and size exclusion chromatography of coal liquids.
Download or read book Vapor Liquid Equilibrium of Coal Derived Fluids by Continuous Thermodynamics written by Lakshminarayanan Srinivasan and published by . This book was released on 1990 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1984 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vapor liquid Equilibrium Model for Aromatic Compounds Present in Coal Fluids written by Sunil S. Ramsinghani and published by . This book was released on 1988 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
