| 反应与精馏耦合水解醋酸甲酯(英文) |
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| 引用本文： | 赵素英,黄镜钊,王良恩,黄国强.反应与精馏耦合水解醋酸甲酯(英文)[J].中国化学工程学报,2010,18(5):755-760. |
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| 作者姓名： | 赵素英 黄镜钊 王良恩 黄国强 |
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| 作者单位： | 1. College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China;2. National Engineering Research Center for Distillation Technology (NERCDT), Tianjin 300072, China |
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| 基金项目： | Supported by the National Torch Program of China (2007HG560031) |
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| 摘 要： | A process composed of a fixed-bed and a distillation column with a side withdraw, mainly methanol, is developed to hydrolyze methyl acetate (MA) as a typical byproduct in polyvinyl alcohol (PVA) and pure terephthalic acid (PTA) factory. The process is simulated by employing the equilibrium stage model RadFrac and plug flow model Rplug in Aspen Plus. Experiments are also carried out in a lab-scale to evaluate the process. The results show that at the molar ratio of water to methyl acetate about 4.0-5.0 in the feed stream and the volume ratio of distillate to feed MA above a critical value, the side product contains more than 80% (by mass) (MeOH) and less than 2% (by mass) MA, while the bottom contains more than 46% (by mass) acetic acid (HAc) and less than 0.5% (by mass) methanol with almost complete conversion of MA. Compared with the old catalytic distillation process we proposed before, this process can cut down 47.6% energy consumption and a distillation column.
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| 关 键 词： | methyl acetate hydrolysis simulation |
| 收稿时间： | 2010-1-8 |
| 修稿时间： | 2010-1-8
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Coupled Reaction/Distillation Process for Hydrolysis of Methyl Acetate |
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| ZHAO Suying,HUANG Jingzhao,WANG Liang'en,HUANG Guoqiang.Coupled Reaction/Distillation Process for Hydrolysis of Methyl Acetate[J].Chinese Journal of Chemical Engineering,2010,18(5):755-760. |
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| Authors: | ZHAO Suying HUANG Jingzhao WANG Liang'en HUANG Guoqiang |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China;2. National Engineering Research Center for Distillation Technology (NERCDT), Tianjin 300072, China |
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| Abstract: | A process composed of a fixed-bed and a distillation column with a side withdraw, mainly methanol, is developed to hydrolyze methyl acetate (MA) as a typical byproduct in polyvinyl alcohol (PVA) and pure terephthalic acid (PTA) factory. The process is simulated by employing the equilibrium stage model RadFrac and plug flow model Rplug in Aspen Plus. Experiments are also carried out in a lab-scale to evaluate the process. The results show that at the molar ratio of water to methyl acetate about 4.0-5.0 in the feed stream and the volume ratio of distillate to feed MA above a critical value, the side product contains more than 80% (by mass) (MeOH) and less than 2% (by mass) MA, while the bottom contains more than 46% (by mass) acetic acid (HAc) and less than 0.5% (by mass) methanol with almost complete conversion of MA. Compared with the old catalytic distillation process we proposed before, this process can cut down 47.6% energy consumption and a distillation column. |
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| Keywords: | methyl acetate hydrolysis simulation |
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