本文選題：萃取精餾 + 熱力學��； 參考：《化工學報》2017年05期

【摘要】：以環(huán)丁砜-烴類相平衡數(shù)據(jù)和NRTL-RK熱力學方法為基礎,對環(huán)丁砜萃取精餾過程進行了全流程模擬和工藝操作參數(shù)優(yōu)化。綜合考慮各個操作變量及其關(guān)聯(lián),提出了基于局部耦合參數(shù)迭代優(yōu)化的整體協(xié)同優(yōu)化的策略。通過文獻數(shù)據(jù)回歸和Aspen Plus物性估算系統(tǒng)相結(jié)合,補充修正了缺失的模型參數(shù),并以此模擬分析了各關(guān)鍵操作參數(shù)對環(huán)丁砜萃取精餾過程能耗和分離效果的影響。結(jié)果表明:當萃取精餾塔操作壓力為0.17 MPa,溶劑回收塔操作壓力為0.05 MPa時,貧溶劑最佳溫度為100℃,原料飽和氣相進料的最佳進料位置為第50塊塔板;溶劑回收塔最佳回流比為0.33;最佳進料位置為第6塊塔板,汽提水量為2853 kg·h~(-1)。優(yōu)化后,裝置最小熱公用工程由1.158 GJ·t~(-1)下降至0.802 GJ·t~(-1),節(jié)能效果顯著。
[Abstract]:Based on sulfolane hydrocarbon phase equilibrium data and NRTL-RK thermodynamic method, the whole process of extraction distillation of sulfolane was simulated and the operation parameters were optimized. Considering each operation variable and its correlation, a strategy of global cooperative optimization based on iterative optimization of local coupling parameters is proposed. Through the combination of literature data regression and Aspen Plus physical property estimation system, the missing model parameters were supplemented, and the effects of key operating parameters on the energy consumption and separation efficiency of sulfolane extraction distillation process were simulated and analyzed. The results show that when the operating pressure of the extraction distillation column is 0.17 MPA and the operating pressure of the solvent recovery column is 0.05 MPa, the optimum temperature of the poor solvent is 100 鈩，

本文編號：1911580