| 重溶剂法TDI生产中氯乙烷脱除系统的改造 |
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| 引用本文： | 李晓明,罗代晏,毕荣山,谭心舜,郑世清. 重溶剂法TDI生产中氯乙烷脱除系统的改造[J]. 聚氨酯工业, 2008, 23(3) |
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| 作者姓名： | 李晓明 罗代晏 毕荣山 谭心舜 郑世清 |
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| 作者单位： | 青岛科技大学计算机与化工研究所,266042;甘肃银光聚银化工有限公司,白银,730900;青岛科技大学计算机与化工研究所,266042 |
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| 摘 要： | 对重溶剂法生产甲苯二异氰酸酯过程中产生的副产物氯乙烷的脱除进行了研究.以 6万t/a装置为例,利用Aspen Plus软件对氯乙烷的脱除位置、脱除浓度以及氯乙烷脱除塔的操作进行了模拟分析,找出原工艺的缺点,提出了改造方案,并对改造后氯乙烷脱除塔的操作进行了模拟优化.改造后的工艺与原工艺相比,氯乙烷脱除浓度增加,光气浪费现象下降,操作范围增加.
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| 关 键 词： | 甲苯二异氰酸酯 氯乙烷 脱除系统 改造 |
Optimal Retrofit of Chloroethane Removal System in TDI Production Using Heavy Solvent |
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| Li Xiaoming,Luo Daiyan,Bi Rongshan,Tan Xinshun,Zheng Shiqing. Optimal Retrofit of Chloroethane Removal System in TDI Production Using Heavy Solvent[J]. Polyurethane Industry, 2008, 23(3) |
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| Authors: | Li Xiaoming Luo Daiyan Bi Rongshan Tan Xinshun Zheng Shiqing |
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| Abstract: | The removal chloroethane system in TDI production using heavy solvent was studied.Based on the 60000 t/a TDI equipment and used Aspen Plus software,it analyzed the removal location,removal concentration and operation conditions of removal tower,found the disadvantages of the old process,and proposed the retrofit scheme.The removal tower of retrofitted process was optimized.Compared with the old process,the new one had a more removal concentration,lower waste of phoghene and more operation range. |
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| Keywords: | TDI chloroethane removal system retrofit |
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