本文選題：分壁式精餾塔 + 節(jié)能��； 參考：《華東理工大學(xué)》2015年碩士論文

【摘要】：分壁式精餾塔作為特殊的熱耦精餾塔,即在精餾塔內(nèi)放置一豎直隔板,可實現(xiàn)多組分混合物的高純度分離,相較于常規(guī)序列精餾塔不僅減少了設(shè)備的投資和占地面積,更重要的是可以大幅度降低精餾過程中的能耗。本文為了獲得分壁式精餾塔的適用范圍,采用Matlab數(shù)學(xué)編程軟件對其節(jié)能效果進(jìn)行模擬研究。然后自行設(shè)計分壁式精餾塔中試實驗裝置并對其進(jìn)行實驗研究。首先,分別建立分壁式精餾塔和常規(guī)序列精餾塔的數(shù)學(xué)模型。采用Matlab數(shù)學(xué)編程軟件對分壁式精餾塔和常規(guī)序列精餾塔進(jìn)行模擬計算,確定各塔段的理論塔板數(shù)目。根據(jù)模擬結(jié)果,分別從進(jìn)料組成、分離指數(shù)和相對揮發(fā)度兩個方面,對分壁式精餾塔相較于常規(guī)序列塔的節(jié)能效果進(jìn)行研究,尋找它的適用范圍。研究表明分壁式精餾塔適用于分離進(jìn)料中間組分大于0.5,分離指數(shù)接近于1且αBC接近2的物系。然后,自行設(shè)計了分壁式精餾塔的中試裝置,并用其進(jìn)行中試實驗研究。分別以甲醇-乙醇-正丙醇、乙醇-正丙醇-正丁醇兩組三元物系,通過正交試驗和單因素條件實驗,討論了進(jìn)料組成、回流比、液體分配比等操作條件對分壁式精餾塔分離效果的影響。實驗結(jié)果表明,當(dāng)進(jìn)料組成的摩爾比為1：3：1,回流比為8,液體分配比為3：7,氣體分配比為1：1時,兩組物系的分離效果均較優(yōu)。最后,基于實驗結(jié)果,采用Matlab數(shù)學(xué)編程軟件對分壁式精餾塔分離醇類三元物系的實驗結(jié)果進(jìn)行擬合計算,使得實驗值與模擬值的平均偏差在允許范圍之內(nèi)。通過模擬分析分壁式精餾塔的節(jié)能效果以及中試實驗的研究,模擬結(jié)果和實驗結(jié)果為分壁式精餾塔的工業(yè)應(yīng)用提供了基礎(chǔ)。
[Abstract]:As a special thermocouple distillation tower, a vertical partition is placed in the distillation tower, which can achieve high purity separation of multi component mixtures. Compared with the conventional sequence distillation tower, the investment and area of the equipment are reduced, and the energy consumption in the distillation process is greatly reduced. The application range of the distillation column is applied to the simulation of the energy saving effect of the Matlab programming software. Then the pilot plant of the fractional distillation column is designed by ourselves and the experimental research is carried out. First, the mathematical model of the fractional distillation column and the conventional distillation column is set up respectively. The fractional distillation of the fractional distillation is adopted by the Matlab programming software. The tower and the conventional sequence distillation column are simulated to determine the number of theoretical plates in each column. According to the simulation results, the energy saving effect of the partial wall distillation column compared with the conventional sequence tower is studied from two aspects of the composition, the separation index and the relative volatility, and the application range of the fractionating column is found. It is used to separate the middle component of the material more than 0.5, the separation index is close to 1 and the alpha BC is close to 2. Then, the pilot plant of the fractionating tower is designed by itself, and the pilot experiment is carried out in the pilot experiment. The two groups of three elements, methanol - ethanol - propanol, ethanol - propanol - n-butanol, are respectively tested by orthogonal test and single factor experiment, The effect of feed composition, reflux ratio and liquid distribution ratio on separation effect of fractional distillation column is discussed. Experimental results show that when the molar ratio is 1:3:1, the reflux ratio is 8, the liquid distribution ratio is 3:7, and the gas distribution ratio is 1:1, the separation effect of the two groups is better. Finally, based on the experimental results, the M is used. Atlab mathematical programming software is used to fit and calculate the experimental results of the separation of the three elements of the alcohol class by the fractional wall distillation column, which makes the average deviation between the experimental value and the simulated value within the allowable range. The simulation analysis of the energy saving effect and the pilot experiment of the wall fractionating tower is carried out. The simulation results and the experimental results are the work of the wall fractionating tower. The application of the industry provides a basis.
【學(xué)位授予單位】：華東理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TQ053.5

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