棕櫚酸異丙酯反應(yīng)精餾塔的設(shè)計與控制
發(fā)布時間:2018-11-04 19:01
【摘要】:反應(yīng)體系中混合物的相對揮發(fā)度排序?qū)φ麄反應(yīng)精餾過程的設(shè)計和控制都有很大的影響,針對擁有最不利相對揮發(fā)度排序的棕櫚酸異丙酯(IPP)反應(yīng)精餾塔的特點(diǎn),建立合理的穩(wěn)態(tài)模型,并設(shè)計常規(guī)的溫度控制TC方案以及新穎的溫差控制TDC方案來控制出料產(chǎn)品的純度。通過Aspen Dynamics軟件進(jìn)行模擬仿真實(shí)驗(yàn)。在系統(tǒng)中引入3種干擾(操作壓力,進(jìn)料流量和進(jìn)料組分)用于評估2種控制方案的性能。仿真結(jié)果表明:2種控制方案最終都能很好地控制出料產(chǎn)品的純度,這突顯了穩(wěn)態(tài)模型設(shè)計的合理性。但TDC方案明顯具有更好的魯棒性,保證了產(chǎn)品純度的同時還使系統(tǒng)能夠快速的穩(wěn)定,且超調(diào)量較小,這為今后反應(yīng)精餾過程的設(shè)計與控制提供了一種新思路。
[Abstract]:The relative volatility ordering of mixtures in the reaction system has great influence on the design and control of the whole reactive distillation process. The characteristics of isopropyl palmitate (IPP) reaction distillation column with the most unfavorable relative volatility ordering are discussed. A reasonable steady-state model was established and a conventional TC scheme for temperature control and a novel TDC scheme for temperature difference control were designed to control the purity of the product. The simulation experiment is carried out by Aspen Dynamics software. Three kinds of interference (operating pressure, feed flow rate and feed component) are introduced to evaluate the performance of the two control schemes. The simulation results show that the purity of the product can be well controlled by the two control schemes, which highlights the rationality of the steady-state model design. But the TDC scheme has better robustness, which ensures the purity of the product and makes the system fast and stable, and the overshoot is small, which provides a new idea for the design and control of the reaction distillation process in the future.
【作者單位】: 北京化工大學(xué)信息科學(xué)與技術(shù)學(xué)院;
【分類號】:TQ053.5
本文編號:2310853
[Abstract]:The relative volatility ordering of mixtures in the reaction system has great influence on the design and control of the whole reactive distillation process. The characteristics of isopropyl palmitate (IPP) reaction distillation column with the most unfavorable relative volatility ordering are discussed. A reasonable steady-state model was established and a conventional TC scheme for temperature control and a novel TDC scheme for temperature difference control were designed to control the purity of the product. The simulation experiment is carried out by Aspen Dynamics software. Three kinds of interference (operating pressure, feed flow rate and feed component) are introduced to evaluate the performance of the two control schemes. The simulation results show that the purity of the product can be well controlled by the two control schemes, which highlights the rationality of the steady-state model design. But the TDC scheme has better robustness, which ensures the purity of the product and makes the system fast and stable, and the overshoot is small, which provides a new idea for the design and control of the reaction distillation process in the future.
【作者單位】: 北京化工大學(xué)信息科學(xué)與技術(shù)學(xué)院;
【分類號】:TQ053.5
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