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However, reactive distillation column design requires reliable kinetic data in addition to other crucial information such as phase equilibria. Methods carried out to assess the reactive distillation process feasibility are often based on residue curve maps (RCM) for non-reactive distillation, and on reactive residue curve maps (rRCM) for reactive distillation. In addition to the four pure components, three azeotropes are the singular points of the n-propyl acetate synthesis reaction rRCM (Table 1). Two of these azeotropes (PrOH/PrOAc and PrOH/H2O) are remaining from the non-reactive RCM although two others involving reactive species (PrOAc/H2O and PrOH/PrOAc/H2O which are both heterogeneous) disappear; the last singular point of this rRCM is a quaternary reactive azeotrope. The chemical equilibrium constant value has a great influence on the liquid phase stability of this point (but not on its topological stability since it is always an unstable node): when a value of 20 (Huang et al., 2005) is used, the reactive azeotrope is homogeneous, although a value of 48.8 (Okasinski and Doherty, 2000) leads to a heterogeneous reactive azeotrope.

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sltmac(金幣+1): 感謝應(yīng)助~~ 2011-05-23 21:58:27
寶MMC(金幣+21, 翻譯EPI+1): 謝謝 2011-05-23 22:33:27

However, reactive distillation column design requires reliable kinetic data in addition to other crucial information such as phase equilibria. 然而，反應(yīng)蒸餾柱設(shè)計(jì)需要可靠的動(dòng)力學(xué)資料以及其他關(guān)鍵信息諸如相平衡。Methods carried out to assess the reactive distillation process feasibility are often based on residue curve maps (RCM) for non-reactive distillation, and on reactive residue curve maps (rRCM) for reactive distillation.對(duì)非反應(yīng)蒸餾，評(píng)價(jià)反應(yīng)蒸餾過(guò)程可行性的方法通常是基于馀曲線圖，相應(yīng)的對(duì)反應(yīng)蒸餾則基于反應(yīng)馀曲線圖。 In addition to the four pure components, three azeotropes are the singular points of the n-propyl acetate synthesis reaction rRCM (Table 1). 除4種純物質(zhì)之外，3種共沸混合物是乙酸正丙酯合成反應(yīng)rRCM （表1）的奇點(diǎn)。Two of these azeotropes (PrOH/PrOAc and PrOH/H2O) are remaining from the non-reactive RCM although two others involving reactive species (PrOAc/H2O and PrOH/PrOAc/H2O which are both heterogeneous) disappear; the last singular point of this rRCM is a quaternary reactive azeotrope. 盡管有其他兩種有關(guān)的反應(yīng)物種(PrOAc/H2O和PrOH/PrOAc/H2O ，兩者均為非均相)，其中2種共沸混合物(PrOH/PrOAc 和 PrOH/H2O)依然保留來(lái)自于非反應(yīng)RCM的數(shù)據(jù)。The chemical equilibrium constant value has a great influence on the liquid phase stability of this point (but not on its topological stability since it is always an unstable node): when a value of 20 (Huang et al., 2005) is used, the reactive azeotrope is homogeneous, although a value of 48.8 (Okasinski and Doherty, 2000) leads to a heterogeneous reactive azeotrope.化學(xué)平衡常數(shù)賦值對(duì)這點(diǎn)的化學(xué)穩(wěn)定性具有很大影響（但由于此點(diǎn)總是一個(gè)不穩(wěn)定的結(jié)點(diǎn)，因而對(duì)其拓?fù)浞€(wěn)定性沒(méi)有影響）：雖然賦值48.8導(dǎo)致一個(gè)非均相反應(yīng)共沸混合物，賦值20時(shí)反應(yīng)共沸混合物是均相的。

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2樓2011-05-23 15:07:33