A reactor and kinetic model for liquefaction of lignite in an upflow tubular reactor /
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| Other Authors: | , , |
| Format: | Thesis Book |
| Language: | English |
| Published: |
1985.
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| Subjects: | |
| Online Access: | Link to ProQuest copy Link to OAKTrust copy |
| Abstract: | A kinetic and tubular reactor model for the CO-Steam process for the liquefaction of North Dakota lignite is presented. The purpose of the model is to translate existing data into different process conditions in order to aid in scale-up. Two major uncertainties in tubular-reactor modeling are encountered, namely, the application of the appropriate design model and the accurate estimation of parameters. This work presents: (1) a kinetic model for the liquefaction of lignite by lumping the reaction products in terms of components which are obtained by the separation of distillation and solubility; (2) a nonisothermal, two phase dispersion reactor model including the coupling of reaction kinetics with mixing, heat and mass transfer within the reactor; and (3) a technique for solving the large set of design equations and estimating the corresponding parameters. Experimental data supplied by the University of North Dakota Energy Research Center are used in developing the model. The effects of temperature, slurry flow rate, gas flow rate and mass transfer between the gas phase and the slurry phase on the product distribution are assessed. |
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| Item Description: | "Major subject: Chemical Engineering." Typescript (photocopy). Vita. |
| Physical Description: | x, 284 leaves : illustrations ; 29 cm |
| Bibliography: | Includes bibliographical references (leaves 160-166). |