1、

Effects of feed rate, feed fraction, reflux ratio and feed position on reaction distillation were investigated.

考察了进料流率, 进料组成, 回流比,进料位置对反应精馏的影响.

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2、

In this paper, benzoic acid refining distillation system with SNIA benzene liquid phase process was researched via simulation. The effect of theoretical tray numbers 、 operation pressure 、 reflux ratio 、 feeding position etc.

本文对SNIA甲苯液相法生产苯甲酸产品精馏系统进行了研究,考察了三个精馏塔的理论板数、操作压力、回流比、进料位置等条件对SNIA苯甲酸产品质量的影响。

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3、

furthermore the effects of tower top pressure, temperatures of tower top and bottom, reflux ratio on product purity were analyzed.

同时探讨了塔顶压强、塔顶和塔釜温度、回流比变化对产品纯度的影响,获得了试验条件下的最佳操作条件。

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4、

The process utility demand was related to the reflux ratio of distillation column.

最后探讨了一下蒸馏塔的回流比对过程用能方面产生的影响.

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5、
6、

It also discussed emphatically effect of feed stage, number of theoretical plate, reflux ratio and solvent-feed ratio on purity and yield of product.

本文重点研究了进料位置,理论板数,回流比以及剂料比对产品的收率及纯度的影响。

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7、

A case study of gas separation system is given to illustrate the effects of product quality, reflux ratio and tower pressure to total economic benefit through flow simulation.

本文以某气体分馏装置为例,通过严格的流程模拟,分析了产品质量、回流比和塔压等操作参数对总经济效益的影响。

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8、

When the slop cut is withdrawn under constant reflux ratio, the overhead concentration descends sharply at the beginning, then smoothly afterwards.

在过渡馏分的采出过程中,以恒回流比操作时,塔顶浓度开始时下降很快,然后逐渐变缓。

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9、

The Underwood method has been used to calculate minimum reflux ratio for complex columns.

用Underwood法确定复杂精馏塔最小回流比。

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10、

The structure of reflux ratio regulator was ameliorated to make remote control reliable and repair convenient.

改进结构后,远距离监控可靠,维修方便;

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11、

A Method for the Reflux Ratio and the Number of Theory Plates of Binary Ideal Solution Complex Distillation Tower by Using Microsoft Excel

用microsoft excel计算二元理想物系复杂精馏塔的回流比和理论板数

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12、

increasing reflux ratio will help improve the quality of lean solution regeneration.

增大回流比有利于提高贫液再生质量;

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13、

controlling at the optimum reflux ratio during the multicomponent fractionation

多组分精馏分离过程中的最佳回流比控制

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14、

It was shown that the optimum molar ratio between hydrobromic acid and pentaerythrite was 2.5 to 1 for 6 to 8h of optimum reaction time and reflux temperature as optimum reaction temperature.

实验确定了氢溴酸与季戊四醇的最佳摩尔比为2.5∶1,最佳反应时间为6~8h,最佳反应温度为回流温度。

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15、

super mild hybrid electric vehicle ( hev) takes continuously variable transmission ( cvt) with reflux power as transmission system. taking advantage of its wide ratio range, super mild hev possesses only motor mode, however, mild hybrid electric vehicle has not this mode.

超轻度混合动力汽车的传动系统是以回流式无级变速器作为传动装置的新型车辆传动方式,利用其传动比变化范围大的特点,可以实现轻度混合动力汽车所不具有的纯电动工况的功能。

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16、

The results showed that at the condition of 1.2 ∶ 1 molar ratio of isoamyl alcohol to n-butyric acid, 0.5% catalyst ( molar percent of n-butyric acid), 2.5 h, no water-carrying agent, at reflux temperature, the esterification degree achieved 95.8%.

反应条件为醇酸摩尔比12∶10,催化剂用量05%(以酸的摩尔数计),反应时间25h,不加带水剂,回流反应温度在130~135℃条件下,酯化率可达958%。

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17、

The reboil ratio and top reflux were increased by 4.5% and 29.3% by utilizing bottom reboiler of toluene column made of sintered porous surface tubes.

甲苯塔采用烧结型表面多孔管再沸器后,再沸比和塔顶回流量分别增加了4.5%和29.3%。

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