Results 11 to 20 of about 566,385 (305)

Hybrid Membrane-Distillation Separation Processes [PDF]

open access: yesChemical Engineering Transactions, 2014
A novel synthesis approach is developed to evaluate and optimise various hybrid membrane-distillation schemes. The problem is formulated as an optimisation problem, where the objective is to minimise the total operating cost of the separation scheme ...
A. Etoumi, M. Jobson, M. Emtir
doaj   +2 more sources

New double column system for heteroazeotropic batch distillation [PDF]

open access: yes, 2009
A new double column system (DCS) operated in closed mode is suggested for heterogeneous batch distillation. This configuration is investigated by feasibility studies based on the assumption of maximal separation and is compared with the traditional batch
Denes, F.   +5 more
core   +1 more source

Feasibility of Batch Reactive Distillation with Equilibrium-Limited Consecutive Reactions in Rectifier, Stripper, or Middle-Vessel Column. [PDF]

open access: yes, 2011
A general overall feasibility methodology of batch reactive distillation of multireaction systems is developed to study all the possible configurations of batch reactive distillation.
Lelkes, Zoltan   +9 more
core   +1 more source

Dynamics and control of unstable distillation columns [PDF]

open access: yesModeling, Identification and Control: A Norwegian Research Bulletin, 1992
The fact that ideal two-product distillation columns may have multiple steady states and unstable operating points has only recently been recognized. This paper discusses the dynamics and control implications. It is shown that columns operating with reflux and boilup as independent variables become unstable if the internal flows are sufficiently large.
Elling W. Jacobsen, Sigurd Skogestad
openaire   +2 more sources

APPLICATION OF MODEL PREDICTIVE CONTROL (MPC) TUNING STRATEGY IN MULTIVARIABLE CONTROL OF DISTILLATION COLUMN [PDF]

open access: yes, 2007
A model predictive control strategy is proposed for multivariable nonlinear control problem in a distillation column. The aim is to provide a solution to nonlinear control problem that is favorable in terms of industrial implementation.
Wahid, A., Ahmad, A.
core   +2 more sources

Energy Study of Reactive-HIDiC Simulation for Ethyl Acetate Synthesis from Acetic Acid

open access: yesChemical Engineering Transactions, 2017
In this paper the concept of Heat Integrated Distillation Column (HIDiC) and Reactive Distillation (RD) were used to study the ethyl acetate process by the simulation in Aspen Plus.
J. Leon-Pulido   +6 more
doaj   +1 more source

Numerical study of a Solar Absorption Refrigeration Machine [PDF]

open access: yesE3S Web of Conferences, 2020
In this paper, we present a numerical study of a single-stage absorption refrigeration machine, operating with a couple of water-ammonia fluids, equipped with a distillation column and associated with a solar heating system using solar collectors.
Dardouch J., Charia M., Bernatchou A.
doaj   +1 more source

A Heuristic for Extractive Agent Flow Rate in Extractive Distillation

open access: yesChemical Engineering Transactions, 2018
Distillation is the most widely used separation process for liquids separation in the industry. Even when the volatilities of the mixture are not favorable, then enhanced distillation is used.
Valentin Plesu   +5 more
doaj   +1 more source

Heterogeneous Extractive Batch Distillation of Chloroform - Methanol – Water : Feasibility and Experiments [PDF]

open access: yes, 2008
A novel heterogeneous extractive distillation process is considered for separating the azeotropic mixture chloroform – methanol in a batch rectifying column, including for the first time an experimental validation of the process.
Gerbaud, Vincent   +2 more
core   +1 more source

Appropriate selections of distillation column control variable to improve integrating material recycle response

open access: yesJournal of King Saud University: Engineering Sciences, 2019
The distillation column control strategy in a standalone column ensures a safe and stable column operation by holding the purities/or impurities in distillate and bottoms product streams.
Asma Iqbal, Syed Akhlaq Ahmad, Ojasvi
doaj   +1 more source

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