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[求助]
求助翻译一段化学英文文献，谢谢
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| The combination of reaction and distillation in one reactive distillation (RD) unit can lead to significant reduction of investment and operational cost. However, interactions between reactions and separation increase complexity and require a better understanding of the process. Whereas RD is intensively studied for years, only few works have been published on vapour–liquid–liquid (VLL) systems, thus our investigations focus on VLL reactive systems. Experimental investigations have already been published for the production of butyl acetate (Steinigeweg and Gmehling, 2002) or amyl acetate (Chiang et al., 2002) but, to the best of our knowledge, none for n-propyl acetate reactive distillation; thus, information about n-propyl acetate synthesis can hardly be found in literature. Investigations on reactive membrane separation have led Huang et al. (2005) to publish data on chemical equilibrium. Bart et al. (1996) have published a kinetic modelling of the n-propyl acetate synthesis catalysed by an ion exchange resin (Dowex) as well as Steinigeweg (2003) with the Amberlyst-15. Unfortunately, uncertainty remains on the chemical equilibrium constant value. Finally, no data about reactive distillation pilot-plant experiments is published. |
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【答案】应助回帖
宝MMC(金币+20, 翻译EPI+1): 谢谢 2011-05-23 14:04:30
在一个反应蒸馏(RD)单元里，将反应与精馏相结合,可以有效降低投资和运营成本。然而,反应和分离之间的相互作用增加了反应复杂性而且要求有更好的理解的过程。而对于反应蒸馏(RD)单元的研究已进行了许多年,但只有少数的作品发表在vapour-liquid-liquid(VLL)系统,因此使我们的研究集中在VLL反应系统中。对于生产醋酸丁酯(Steinigeweg和Gmehling,2002)或醋酸戊酯(2002年)的实验研究已经公布，但是,据我们所知,没有对乙酸正丙酯进行反应蒸馏;因此,很难查到有关合成醋酸正丙酯的文献。考察的基础上,黄2005在化学平衡上公布无功膜分离的有关数据。巴特1996已经出版了动力学建模的一种离子交换树脂(Dowex)的有关信息，同样Steinigeweg在2003用Amberlyst-15促合成乙酸正丙酯。不幸的是,不确定性仍然是化学平衡常数的价值。最后,还没有对有关反应蒸馏实际生产规模试验的数据发表。 |
2楼2011-05-23 11:11:25