کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7043417 | 1456911 | 2019 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Control of an energy-saving side-stream extractive distillation process with different disturbance conditions
ترجمه فارسی عنوان
کنترل یک فرایند تقطیر استخراج جانبی با صرفه جویی در انرژی با شرایط مختلف اختلال
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کلمات کلیدی
تقطیر استخراج جانبی جریان، ساختار کنترل کنترل های پویا، جداسازی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
It is important to study the dynamic controllability for the side-stream extractive distillation due to its superiority of energy saving. Control structures of the side-stream extractive distillation process are special and complex due to the instability of side-stream flow rate. In this work, the dynamic control of the side-stream extractive distillation was explored for separating azeotropic mixture of acetone and methanol. The detailed control structures were used to investigate the control strategies of side-stream extractive distillation. During the whole design process, the control of flow rate on side stream is a key factor for achieving this process efficient control. A new control structure combining a component controller and a side-stream throughput valve was proposed to achieve good dynamic performance for the side-stream extractive distillation process when ±10% disturbances were introduced, but it is difficult to control the ±20% feed disturbances. In addition, the side-stream extractive distillation takes about a longer time to reach a steady state while maintaining the purity of products, compared with conventional process. Research on control performance is of great significance to the development of energy saving technology for side-stream extractive distillation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 210, 8 February 2019, Pages 195-208
Journal: Separation and Purification Technology - Volume 210, 8 February 2019, Pages 195-208
نویسندگان
Kang Ma, Mengxiao Yu, Yao Dai, Yixin Ma, Jun Gao, Peizhe Cui, Yinglong Wang,