Using Carbonylation for the Production of Acetic Anhydride: A Process Synthesis and Design
| Autor: | Chei-Wei Fan, 范哲維 |
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| Rok vydání: | 2012 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 100 In this thesis, we focus mainly on the carbonylation process for the production of acetic anhydride. Essentially, it consists of two-step carbonylation reactions to produce acetic anhydride. In addition, we also present the manufacturing process of the chemical precursor—methanol and the process intensification for the making of methyl acetate. In the study, we have also carried out heat integration by way of the pinch technique for the “two-step carbonylation reactions to produce acetic anhydride” in order to achieve energy savings in the process. In the study, we found the two-step carbonylation process (40,000 tonne/yr) results in a saving of 52% hot utility energy and 60% cold utility energy after the heat integration, and the process intensification results in a distillation-tower diameter increase from 0.63 m to 0.83 m, but with a reboiler heat-duty decrease from 1,031 kW to 134 kW for the methyl acetate process. Two kinds of software were utilized in the research—Aspen Plus and SuperTarget. The former was used to carry out the process synthesis, design, and simulation; the latter was used to implement the pinch analysis and the synthesis of heat exchanger network. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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