Simulation of Reactive Distillation for synthesis of ethyl acetate in the process Figure 3 12: Aspen HYSYS reactive distillation process flow diagram (PFD)
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Design of a Complete Ethyl Acetate Reactive - ScienceDirectcom
The reactive distillation column in the study is the production of ethyl acetate commercial processes include methyl acetate and methyl tert-butyl ether of this conference, other VLE x-y and T-x-y diagrams and LLE envelop with base case EtOH feed flow rate is taken from Vora and Daoutidis [6] as 6 865 mol/s and two
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process parameters i e ethanol flow rate, acetic acid flow rate, choice of a homogeneous distillation process parameters on ethyl acetate production 8: Schematic of SMBR for the Equilibrium Reaction (Acetic acid (AA) + Alcohol = Ester +
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equipped with temperature, flow, and level measurements and control is executed in a Delta-V process control Keywords: ethyl acetate, reactive distillation, startup, pilot plant test, esterification 1 acetate Later on, extensive researches on the RD process appeared The RCM diagram of EtOH-EtAc-H2O system Fig
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Simulation of Reactive Distillation for synthesis of ethyl acetate in the process Figure 3 12: Aspen HYSYS reactive distillation process flow diagram (PFD)
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3 fév 2017 · in the field of esterification processes such as the synthesis of methyl acetate [1, Our flow-sheet for ethyl acetate production is shown in Fig 1
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The ethyl acetate synthesis via reactive distillation is studied theoretically and The use of solid catalysts in reactive separation processes has led to a new for the vapour flow and sufficient mass transfer efficiency by a segmentation of the
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June 2015 Simulation of
Ethyl Acetate
Synthesis via
Reactive
Distillation
Bachelor Final Year Project
Student: Khairul Naim Bin Ahmad
Supervisor: Manuel José Lis Arias
Simulation of Ethyl Acetate Synthesis via Reactive Distillation | Khairul Naim Bin Ahmad1 | P a g e
Abstract
Ethyl acetate (EtAc) is mainly used as solvent in paints, adhesives and coatings, eliminating the use of
aromatic compounds. Reactive distillation is a type of process intensification in which the separation
and reaction is combined in one vessel. In this work, reactive distillation (RD) process for EtAc was
implemented using process simulator Aspen HYSYS by applying the data obtained from the bibliography. A sensitive analysis was performed to determine the effects of key design and operating variables on column performance and, subsequently, an optimal column configuration was obtained. Simulation of Ethyl Acetate Synthesis via Reactive Distillation | Khairul Naim Bin Ahmad2 | P a g e
Contents
Objectives ............................................................................................................................................... 3
Introduction ............................................................................................................................................ 4
Ethyl acetate ....................................................................................................................................... 4
Synthesis of ethyl acetate ............................................................................................................... 4
Reaction kinetics and parameters .................................................................................................. 5
Reactive Distillation ............................................................................................................................ 5
Principles of Reactive Distillation .................................................................................................... 7
Benefits and limitations of Reactive Distillation ............................................................................. 9
Applications of Reactive Distillation ............................................................................................. 12
Aspen HYSYS process simulator ........................................................................................................ 12
Simulation of Reactive Distillation for synthesis of ethyl acetate .................................................... 13
Methodology ......................................................................................................................................... 15
Process Description ........................................................................................................................... 15
Process development ........................................................................................................................ 17
Defining the simulation basis ........................................................................................................ 17
Add the feed stream ..................................................................................................................... 18
Add the distillation column ........................................................................................................... 20
Adding the reaction ...................................................................................................................... 22
Adding the reaction to the column ............................................................................................... 22
Results and discussions ......................................................................................................................... 25
Effect of feed temperature, TF. ......................................................................................................... 25
Effect of number of stages, n. ........................................................................................................... 26
Effect of kinetic model ...................................................................................................................... 27
Effect of the molar feed ratio of HAc to EtOH. ................................................................................. 28
Effect of reflux ratio, R ...................................................................................................................... 29
Effect of activity model ..................................................................................................................... 30
Effect of rectifying and stripping stages ........................................................................................... 32
Conclusions ........................................................................................................................................... 33
Nomenclature ....................................................................................................................................... 34
Bibliography .......................................................................................................................................... 34
Simulation of Ethyl Acetate Synthesis via Reactive Distillation | Khairul Naim Bin Ahmad3 | P a g e
Objectives
a) To simulate the reactive distillation of esterification of acetic acid and ethanol using theAspen HYSYS process simulator.
b) To perform the sensitive analysis to determine the effects of operating variables on column performance (kinetic model, reflux ratio, molar feed ratio, number of stages, etc.) c) To obtain the optimum column configuration. Simulation of Ethyl Acetate Synthesis via Reactive Distillation | Khairul Naim Bin Ahmad4 | P a g e
Introduction
Ethyl acetate
Ethyl acetate is the organic compound with the formula CH3COOC2H5 and having a molecular weight of 88.10 gmol-1. This compound liquid is colorless, with a characteristically sweet, pleasant odor.Ethyl acetate has been largely used as a solvent in paints, coatings, inks and adhesives. It has also
been used as a solvent in many chemical processes as a green alternative, eliminating the use of aromatic compounds, which generate serious damage to the environment and human beings [1].Synthesis of ethyl acetate
Ethyl acetate can be produced industrially in three ways: the Fischer esterification process, Tishchencko reaction and the addition of acetic acid to ethylene.Fischer esterification (Eq. (2.1)) is a classic process which ethyl acetate is formed by the reaction of
ethanol and acetic acid using acidic catalysts [2] such as sulfuric acid and para-toluene sulfonic acid
(PTSA) [3] [4]. %6*91*