Results 151 to 160 of about 593,895 (208)
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CONTROLLABILITY OF SIDESTREAM DISTILLATION COLUMNS
IFAC Proceedings Volumes, 1994Abstract A control application for a distillation column with one sidestream is developed using an industrial tool for column and control system design. This tool is subject of an industry-university cooperation project under financial support of the government of Nordrhein-Westfalen and the companies Henkel KGaA, Dusseldorf, and Schmidding GmbH&Co.,
C. Remberg +4 more
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Verification of a Distillation Column Benchmark
IFAC Proceedings Volumes, 1995Abstract This paper presents the validation of an elaborate model of a semi industrial scale distillation column equipped with an indirect heat pump. The model is derived for ordinary operation within the designed operating window. The paper describes the basis assumptions of the model.
A. Koggersbøl, S. Bay Jørgensen
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Thermal Integration of a Distillation Column Through Side-Exchangers
Chemical Engineering Research and Design, 2007 Thermal integration of a distillation column with the background process through side exchangers (side reboilers/condensers) is important for designing an energy-efficient distillation column.
Santanu Bandyopadhyay
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Stabilization of an Unstable Distillation Column
Industrial & Engineering Chemistry Research, 1998Bekiaris et al. (Ind. Eng. Chem. Res. 1993, 32 (9), 2023) explained the existence of multiple steady states in homogeneous azeotropic distillation on the basis of the analysis of columns with infinite reflux and infinite length (infinite number of trays). They showed that the predictions of multiple steady states for such infinite columns have relevant
Dorn, C. +6 more
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T METHOD FOR DISTILLATION COLUMNS*
Chemical Engineering Communications, 1982The T method is a newly developed one in distillation calculations which belongs to the class of methods which apply a partitioning of the whole system of equations to be solved It is similar in nature to the well known B.P. method or theta method, even if, when compared with them, it shows a higher efficiency in reaching the solution Following the ...
PIERUCCI, SAURO, RANZI, ELISEO MARIA
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Computers & Chemical Engineering, 1993
Abstract This paper relates to the design of distillation columns. In particular, it relates to the optimisation of a base case design. Column optimisation involves options such as different reflux ratios, pressures, side condensing/reboiling and feed preheating/cooling.
V.R. Dhole, B. Linnhoff
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Abstract This paper relates to the design of distillation columns. In particular, it relates to the optimisation of a base case design. Column optimisation involves options such as different reflux ratios, pressures, side condensing/reboiling and feed preheating/cooling.
V.R. Dhole, B. Linnhoff
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A Neuromorphic Controller for a Distillation Column
The Fourth International Conference on Control and Automation 2003 ICCA Final Program and Book of Abstracts ICCA-03, 2003This paper investigates the design of a neural network based controller to control the concentration of the overhead and bottom product in the model of a distillation column. Satisfactory computer simulation results of this approach are obtained.
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Instability of distillation columns
AIChE Journal, 1994AbstractAs recently recognized, distillation columns, operating with reflux and boilup as independent inputs, may have multiple steady‐state solutions, even in the ideal binary case. Two fundamentally different sources may cause the multiplicity, and in both cases some operating points are found to be unstable.
Elling W. Jacobsen, Sigurd Skogestad
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Distillation Column: Review of Major Disturbances
2019 9th IEEE International Conference on Control System, Computing and Engineering (ICCSCE), 2019The continuous increase in the global energy demand obliges the necessity of energy production and its efficient utilization. The energy conservation is a primary concern of every process industry due to the increasing fuel prices. The distillation column is considered as one of the essential energy-intensive unit operations of any chemical and process
Syed Ali Ammar Taqvi +4 more
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