Author: Constantine Tsonopoulos Publisher: ISBN: Category : Science Languages : en Pages : 252
Book Description
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.
Author: David A. Palmer Publisher: CRC Press ISBN: 1351087886 Category : Science Languages : en Pages : 355
Book Description
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.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The work on this project was initiated on September 1, 1991. The project consisted of two different tasks: (1) Development of a model to compute viscosities of coal derived liquids, and (2) Investigate new models for estimation of thermodynamic properties of solid and liquid compounds of the type that exist in coal, or are encountered during coal processing. As for task 1, a model for viscosity computation of coal model compound liquids and coal derived liquids has been developed. The detailed model is presented in this report. Two papers, the first describing the pure liquid model and the second one discussing the application to coal derived liquids, are expected to be published in Energy & Fuels shortly. Marginal progress is reported on task 2. Literature review for this work included compilation of a number of data sets, critical investigation of data measurement techniques available in the literature, investigation of models for liquid and solid phase thermodynamic computations. During the preliminary stages it was discovered that for development of a liquid or solid state equation of state, accurate predictive models for a number of saturation properties, such as, liquid and solid vapor pressures, saturated liquid and solid volumes, heat capacities of liquids and solids at saturation, etc. Most the remaining time on this task was spent in developing predictive correlations for vapor pressures and saturated liquid volumes of organic liquids in general and coal model liquids in particular. All these developments are discussed in this report. Some recommendations for future direction of research in this area are also listed.
Author: Publisher: ISBN: Category : Languages : en Pages : 22
Book Description
In this report we present two data sets that have been compiled to assist in the model developments for solid-liquid equilibria and viscosities of coal derived systems. The first one is on vapor pressures of solid aromatics and the second one consists of viscosities of pure model compounds and some mixtures. These databanks are ready for usage in model development and are summarized in Tables 1 and 2. Literature is being searched to compile similar data for high pressure liquid compressibilities, liquid and solid heat capacities and solid-liquid equilibria for model compound systems. Literature search is also containing to investigate available viscosity models. Once this is completed a few models will be selected for evaluation and consideration as candidates for extension to coal liquids.
Author: Publisher: ISBN: Category : Languages : en Pages : 22
Book Description
Very little data is available on the thermodynamic properties of coal model compounds in liquid phase at high pressures. The authors present preliminary compilations of available data. It is anticipated that they will require vapor pressure and saturated liquid density data for coal model compounds in their high pressure liquid equation of state development. These data sets have also been compiled and are presented. They have at this time completed a review of techniques for high pressure density measurements. Some thought is being given to the possibility of building an apparatus to carry out density measurements for selected model compounds. Finally, they reproduce the Thomson et al equation and describe their preliminary procedure to test this equation with available high pressure thermodynamic data. They acknowledge the possibility that a number of modifications of the Thomson equation will be necessary before a reasonably accurate liquid state equation of state for coal model compound emerges.
Author: Constantine Tsonopoulos
Author: Rice University. Department of Chemical Engineering
Author: Constantine Tsonopoulos
Author: Adriaan Marten Heine van der Veen
Author: David A. Palmer
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