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
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
نویسندگان
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