将新戊酰氯氯化为制得的3-氯新戊酰氯在全回流的填充蒸馏塔中进行。
The chlorination of pivaloyl chloride to prepared 3-chloropivaloyl chloride was took place in a packed distillation column with total reflux.
该文采用微波辅助法提取米邦塔仙人掌多糖，并与热回流提取方法进行比较。
The microwave-assisted technology for extracting polysaccharide from Opuntia Milpa Alta was studied, compared with hot reflux extraction.
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。
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.
本文推导出二元系复杂塔最小回流比的计算式。
Equations for calculation the minimum reflux is derived for binary systems in complex columns.
控制精馏塔回流比，保持流量稳定。
由于冷却塔湿热空气的回流和干扰，对其周围气象参数造成影响。
Because of the circumfluence and disturbing of exhaust wet air, the climate parameters are affected around the cooling towers.
吐哈油田甲醇厂甲醇精馏装置系两塔精馏，采用全回流操作。
The methanol rectification unit used in Tuha Oilfield Methanol Factory includes two rectification towers adopting total reflux operation.
在许多情况下，用带有回流的精馏塔以改善间歇釜的分离性能。
In many cases, a rectifying column with reflux is used to improve the performance of the batch still.
本文介绍一种精馏塔中适宜回流比的优化方法。给出了精馏塔的经济模型及相应的求解方法和求解过程。
In this paper, a method of optimizing reflux ratio in rectifying tower is introduced. An economical model of the rectifying tower and its solving approaches are also presented.
获得了该塔在全回流及部分回流条件下的全塔效率，固定回流比间歇精馏下的塔顶、塔釜温度及浓度随时间的变化曲线等。
The changing curve of temperature and concentration in top and bottom with time in fixed reflux ratio and batch distillation, were also obtained.
通过模拟计算，研究了回流比、预热冷却器面积、塔釜冷却量、蒸发器加热量以及泵循环流量对热敏精馏过程的影响。
By simulation, the effects of reflux ratio, the area of the preheat-cool exchanger, cool duty of still pot, heat duty of evaporator and the liquid flow recycled by pump on heat sens...
通过对DL型塔盘的应用介绍，降低一吸塔的热负荷，以达到减小回流氨添加量，便于高负荷下一吸塔的操作，最终达到提高氨加工能力。
DL tray can reduce the heat load of the first absorption tower and reduce the addition amount of reflux ammonia. As a result, ammonia treatment capacity is increased.
塔盘供货商应对塔盘的详细设计负责，包括下降管。塔盘供货商也应对回流及进料分布器设计供货。
Tray vendor shall be responsible for detailed tray design including downcomers. Tray vendor shall also design and supply reflux and feed distributors.
对提浓塔的理论塔板数、回流量和进料位置等参数进行分析，得到了最优化的设计参数。
The main design parameters, such as NTS, reflux ratio and feed location are analyzed in detail to get the optimized design of the ethyl acetate concentration column.
介绍了利用南向天窗、排雾塔、锯齿形厂房结构、回流式冷凝器及复合式排雾装置的排雾原理和方法，并提出了今后的研究方向。
The principles and practices for mist-removal are presented by southern-facing skylights, zigzag roof configuration, mist-exhaust tower, flux condensers and combined mist removal system.
实验表明，扩张流塔板存在严重回流和滞流现象，收缩流塔板面液体停留时间有明显差异。
Experimental results showed that highly recirculation flow area exists on the sidetocenter tray and clear difference of the liquid residence time exists on the centertoside tray.
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。
Furthermore the effects of tower top pressure, temperatures of tower top and bottom, reflux ratio on product purity were analyzed.
建立了间歇精馏无回流操作过程的数学模型，采用四阶龙格库塔法求解初值问题，计算无回流开工过程及间歇精馏脉动操作过程中无回流周期内各塔板浓度变化的动态特性。
The dynamic characteristic of concentration change on plates of batch rectification column in no reflux start up process and in no reflux period of pulse operation process have been calculated.
应用严格的热力学模型研究了氢同位素低温精馏塔在不同进料扰动、回流比扰动以及馏出量扰动情况下的动态响应情况。
The study of different processes and operations in dynamic behavior of a column has been done in detail using a rigorous thermodynamic model.
根据回流比的变化，对顺流双效HGL精馏实验装置中两精馏塔的进料位置进行了优化。
By analyzing the changes of reflux ratio, the optimum feed positions within the two distillation columns in the experimental device for double-effects distillation HGL of forward feed was determined.
塔盘供货商也设计并提供回流及进料分布器。
Tray vendor shall also design and supply reflux and feed distributors.
对总厂汽油分离塔提出增建中段外回流取热和将板式塔改为填料塔的建议，经实施后效果明显。
Adding intermediate reflux and cooler and using packed column replaced plate column are suggested. The effect is evident in practice.
环合废液脱水后，分离塔回流比为15，理论板为40时，回收乙醇中甲醇的质量分数小于10%。
The recovered ethanol with less than 10% methanol can be purified in a dehydration tower and a separation tower with 40 theoretical plates and a reflux ratio of 15.
模拟了横向风对冷却塔热力特性和飘水损失的影响；提出了沿塔周设置回流槽的措施，以减少飘水损失。
This paper simulates the effect of crosswind on the thermal performance of wet cooling tower and puts forward a feasibility advice of fixing back flow canal around the tower to reduce the water loss.
对脱苯塔进行调整，确定了合适的进料温度和回流温度，保证了脱苯塔回流量，提高了脱苯效率。
By adjusting the temperature of feed and reflux of such tower, reflux flow is guaranteed and the effect of benzene removal is improved. A major bottleneck is eliminated and be...
对脱苯塔进行调整，确定了合适的进料温度和回流温度，保证了脱苯塔回流量，提高了脱苯效率。
By adjusting the temperature of feed and reflux of such tower, reflux flow is guaranteed and the effect of benzene removal is improved. A major bottleneck is eliminated and better economical be...
利用ChemsepL软件对天然气为原料的甲醇精制过程预精馏塔进行了模拟计算，分析了预精馏塔内组分浓度的变化情况以及回流比的影响。
When natural gas was used as feed gas to make methanol simulated calculation of pre-rectifying tower was done by ChemsepL software.
利用ChemsepL软件对天然气为原料的甲醇精制过程预精馏塔进行了模拟计算，分析了预精馏塔内组分浓度的变化情况以及回流比的影响。
When natural gas was used as feed gas to make methanol simulated calculation of pre-rectifying tower was done by ChemsepL software.
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