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Study on High-pressure Phase Equilibria of Binary Systems of Carbon Monoxide and Propionic Acid/ Methyl Formate

Author: JiJia
Tutor: TianYiLing
School: Tianjin University
Course: Physical and chemical
Keywords: Carbon monoxide Carbonylation Propionic acid Methyl VLE
CLC: TQ013.1
Type: Master's thesis
Year: 2010
Downloads: 55
Quote: 0
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Abstract


Industrial propanoate method of ethylene hydroformylation , carbonylation of ethylene hydrogen and ethanol carbonylation method and other methods . Synthesis of methyl formate and methanol carbonylation , direct esterification , methanol dehydrogenation , oxidative dehydrogenation of methanol , synthesis gas CO, H2 synthesis step , methanol and carbon dioxide, hydrogen synthesis. Currently , carbon monoxide, carbonyl and methyl propanoate has become the new method. Therefore, for this reaction system Liquid Phase Equilibria for industrial production of methyl propionate and of great significance . In this paper, the first set with a quartz window can be variable volume autoclave , the use of the Hall sensing element to achieve accurate measurement of volume ; with automatic temperature control , temperature regulation method and the use of a hand pump to achieve a wide range of temperature and pressure accurate regulation ; using a micro- pressure cylinders to achieve high pressure direct sampling and analysis , so you can easily achieve the high-pressure gas-liquid equilibrium compositions of accurate measurements. Also established a set of components of easy operation analyzing apparatus to analyze the composition of the gas phase . Were determined using the static analysis hydroformylation reaction of carbon monoxide carbon monoxide and propionic acid , respectively , methyl binary systems consisting of a high-pressure gas-liquid equilibrium composition , relative density, and molar volume and other data. The results show that carbon monoxide in the solubility of propionic acid and methyl formate as the pressure increases slightly increased. Propionic acid and methyl formate in the solubility of carbon monoxide gas content with increasing pressure gradually increased . This determination of carbon monoxide respectively, and propionic acid, methyl formate binary systems consisting of a high-pressure vapor-liquid equilibrium data of these two systems at home and abroad to fill the gaps in research for the study of the theory and solution of binary systems GLE ( liquid balance ) provides a rich basis for calculating data, but also to promote the vapor-liquid equilibrium theory and methods of computation progress . While carbon monoxide preparation carbonylation reaction of methyl propionate and industrial production design provides the necessary thermodynamic data .

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