Reactive distillation for methyl acetate production. Ethyl acetate liquid mole fraction in ethyl acetate production. And, ethyl acetate ea and methyl tertbutyl ether mtbe are used as ex traction agents in the hybrid extraction distillation section. Ethyl acetate is an ester produced through the reversible reactions such as esterification and etherification in reactive distillation column. Ethyl acetate is an industrially important bulk chemical used primarily as a solvent in the paints, coating and inks industry. Optimization of the ethyl acetate reactive distillation process sungkyu lee and myungwan han department of chemical engineering, chungnam national university, daejeon 305764, korea received 2 july 2001. Novel reactive distillationpervaporation coupled process for ethyl. Control of reactive distillation process for production of. In this chapter, modeling, simulation, and optimization of reactive distillation are presented. Analysis of processing systems involving reaction and distillation. There is one quaternary reactive minimum azeotrope where all the reactive distillation lines end and two conventional nonreactive binary minimum azeotropes, ethyl acetateethanol and ethanolwater, which are on the edges of the diagram. International journal of chemical reactor engineering. Ethyl acetate production and manufacturing process. The reactive distillation system for the production of ethyl acetate via esterification of acetic acid with ethanol using sulphuric.
Ethyl acetate has many uses, both as a solvent and as. Finally, a case study on the ethyl acetate production via esterification of acetic acid with ethanol by reactive distillation is presented. Though ethyl acetate system is suitable for application of reactive distillation, it. The reactive distillation column in the study is the production of ethyl acetate etac via esterification of acetic acid hac with ethanol etoh using sulphuric acid. Reactive distillation modeling of reactive distillation john schell dr. Reactive distillation rd is a column in which reactor and separator work simultaneously. This work has been carried out to simulate and analyze the economic advantages of the conventional and the reactive distillation process methods used for the production of ethyl acetate through.
Pdf high purity ethyl acetate production with a batch reactive. In the proposed work modeling of the reactive distillation column for the production of ethyl acetate is given. The reactive distillation column in the study is the production of ethyl acetate etac via esterification of acetic acid hac with ethanol etoh using sulphuric acid as homogeneous catalyst. Because my method doesnt involve the contamination of ethyl acetate with acetic acid, this is unnecessary. The main method to manufacture ethyl acetate involves the esterification of ethanol with acetic acid although some is produced by the catalytic condensation of acetaldehyde with alkoxides. Conventional batch reactive distillation high purity ethyl acetate production with. Extractive distillation is an attractive method of effecting the separation of ethyl acetate from ethanol and water if agents can be found that 1 will break the ethyl acetateethanolwater ternary azeotrope and 2 are easy to recover from the ethanol and water removed from the ethyl acetate. Separation of ethyl acetate from ethanol and water by. Reaction conditions in the batch reactor for a specific conversion 30 % were obtained. Simulation study of reactive distillation column for the production of methyl oleate m.
The only difference between the processes is the location of the prereacted. Le lann, marieveronique and carrillo le roux, galo and brehelin, mathias. This colorless liquid has a characteristic sweet smell similar to pear drops and is used in glues, nail polish removers, and in the decaffeination process of tea and coffee. In order to assess the effect of important parameters on the course of reaction, this work initially conducted batch reactor experiments. The azeotropic mixture ethyl acetate ethanol eaetoh enables effective separation by extractive distillation. Reactive distillation is a process where simultaneous chemical reaction and. Synthesis of ethyl acetate catalyzed by nh 46mnmo 9o32. Equilibriumlimited ethyl acetate process via reactive distillation pervaporation. Steady state simulations are done in aspen user interface and the effect of reflux ratio on. The separation of the ternary nonideal system ethyl acetate etacethanol etohwater with multiazeotropes is very important since they are always generated in the production process of nbutanol synthesis from ethanol, which is much more difficult due to the formation of the multiazeotrope and distillation boundary.
A method for separating ethyl acetate from methyl ethyl ketone is described including distilling in an anhydrous condition a mixture of ethyl acetatemethyl ethyl ketone in a plate column in the presence of an effective amount of an organic extractive solvent which has the following properties. Journals az books and reference advertising media kit institutional sales acs publishing center privacy policy terms of. A new heterogeneous contacting method for the synthesis of ethyl acetate through fine bubbles tests the hypothesis that reactive distillation can pull the reaction nearer to completion, reducing the downstream separation requirements. In addition, the intensification principles behind the operation, its fundamentals, constrains, design methodologies, the optimization approaches, and the control strategies are discussed with fair detail. Control of reactive distillation process for production of ethyl acetate haoyeh lee a, hsiaoping huang a, ilung chien b a department of chemical engineering, national taiwan university, taipei 10617, taiwan, roc b department of chemical engineering, national taiwan university of science and technology, taipei 10617, taiwan, roc. Reactive distillation is a process where the chemical reactor is also the still. Methyl acetate production via reactive distillation is chosen as a case study. The effectiveness of an extractive distillation process depends on the solvent selection, so the single and mixed solvent for separating ethyl acetate ethanol by extractive distillation were examined. Edgar outline outline overview of reactive distillation project overview tower design steadystate models dynamic models and control individual work column design and operation validation of models preliminary dynamics and control studies. Nov 30, 1999 ethyl acetate cannot be separated from ethanol by distillation or rectification because of the closeness of their boiling points. Hydrocarbons the selection of kvalue and enthalpy models is the most critical step in process simulation. Novel reactive distillation pervaporation coupled process for. Introduction ethyl acetate is a broadly used solvent.
Conselheiro emidio navarro, 1, 1950062 lisboa, portugal. The references given in the kiss 20 book chapter have been left in the. The selected system for the study is the synthesis of ethyl acetate. Synthesis of ethyl acetate catalyzed by nh mnmo with. May 14, 2014 steps involved in the production of ethyl acetate.
In this thesis, a reactive distillation column for ethyl acetate production has been created in aspen user interface. Ethyl acetate is a volatile compound that is in wines, brandy, fruits like pineapple and essential oils obtained from fruits and flowers. High purity ethyl acetate production with a batch reactive distillation column using dynamic optimization strategy. Im going to be making it using the classical fischer esterification reaction. Ethyl acetate is found in many foods such as kiwi fruit, guava fruit, roasted filberts, blue cheese and baked potatoes. Production of ethyl acetate by esterification ethyl acetate is a most familiar ester of ethanol which you can easily remember by its regular use in our daily life. Modeling of reactive distillation column for the production of ethyl acetate. The convergence is shown to be faster with insideoutside algorithm.
Ethyl acetate cannot be separated from ethanol by distillation or rectification because of the closeness of their boiling points. Simulation study of reactive distillation column for the. Separation of the product from the reaction mixture does not need a separate distillation step which saves energy for heating and materials. Synthesis of ethyl acetate catalyzed by nh mnmo with waugh.
Microwave reactive distillation process for production of. The set of nrtl parameters for the ternary systems of acetic acidwatervinyl acetate, and acetic acidwater ethyl acetate. The reaction is generally slow with low yield making downstream separation cost intensive. Reactive distillation for methyl acetate production robert s. It has a sweet smell similar to pear drops according to wikipedia. This is an excellent synthesis to carry out when studying organic chemistry. Investigation of ethyl acetate reactive distillation. Production of highpurity ethyl acetate using reactive distillation. Study of dynamic behavior of ethyl acetate reactive. Ethyl acetate systematically ethyl ethanoate, commonly abbreviated etoac, etac or ea is the organic compound with the formula ch 3. Lee, design of reactive distillations for acetic acid esterification with different alcohols, aiche j. Simulation studies of reactive distillation for ethyl. Also, a hybrid modelling approach, which can be easily implemented in radfrac, is proposed for this system. Ethyl acetate production and manufacturing process icis.
Primary sensory evaluation has determined that this process has a profound effect on the smell of the spirit with the main flavor being similar to fruity bubble gum. A batch reactive distillation column to produce the ethyl acetate studied in this work is shown in fig. The resulting reactive distillation lines diagram is shown in fig. Pdf modeling and simulation of ethyl acetate reactive distillation. Separation of ethyl acetate and ethanol from methyl ethyl ketone and water, and ethyl acetate from ethanol and water by extractive distillation by pisant ratanapupech. The synthesis of methyl acetate was carried out in a packed rdc by catalytic esterification using acetic acid and methanol as reactants in a pilot. It is one of the ingredients responsible for the characteristic smell of a banana flower or overripe fruit.
Recently, for synthesis of ethyl acetate heterogeneously catalyzed reactive distillation has been commercially applied. Pdf production of ethyl acetate using reactive distillation. Ethyl acetate is a most familiar ester of ethanol which you can easily remember by its regular use in our daily life. Dynamics and control of an ethyl acetate reactive distillation column. High purity ethyl acetate production with a batch reactive.
The default solver for three phase columns is the sparse continuation solver which is an advanced solver designed. Us4470881a separation of ethyl acetate from methyl ethyl. Apr 17, 2015 many procedures for this synthesis call for the neutralization of ethyl acetate with sodium carbonate, in order to remove the acetic acid present. Experimental and startup procedure ikuan laia, yanchun liub, chengching yua, mingjer leec, hsiaoping huanga. While the derivative obtained from the reactive distillation of acetic acid can be further used in industries like foods, pharmaceuticals, explosives, medicinals and solvents. Effective agents are ethyl ether, methyl formate and cyclohexane. The effectiveness of an extractive distillation process depends on the solvent selection, so the single and mixed solvent for separating ethyl acetateethanol by extractive distillation were examined. Okur and bayramoglu 2001 have studied the effect of the liquidphase activity model on the simulation of ethyl acetate production by reactive distillation. Although acetic acid and water do not form any azeotrope, use of simple distillation t o. Synthesis and design of reactive distillation columns a thesis submitted to the university of manchester institute of science and technology for the degree of. The azeotropic mixture ethyl acetateethanol eaetoh enables effective separation by extractive distillation. Analysis of processing systems involving reaction and. In this paper, design of a complete reactive distillation column system has been developed. Process intensification by reactive distillation springerlink.
Solutia obtains ethyl acetate as a coproduct in production of polyvinyl alcohol, which the. Synthesis and design of reactive distillation columns. Other methods such as reactive extraction and reverse osmosis can be. Design of a complete ethyl acetate reactive distillation. Design of a complete ethyl acetate reactive distillation column system. Production of ethyl acetate by esterification worldofchemicals. Computer simulation applied to separate ethanol from ethyl acetate by normal distillation process. The equipment used in this work featured 10 catalystpacked plates 9. This makes it a highly complex process because many parameters involved in both reaction and separation are interactive in nature. Experimental and simulation study on the reactive distillation process for the production of ethyl acetate 521 conclusions reactive distillation experiments for the production of ethyl acetate from ethanol and acetic acid were conducted. Simulation studies of reactive distillation for ethyl acetate. May 14, 2014 reactive distillation can be used in the separation of acetic acid from water.
In first step ethanol with acetic acid is feed into the pre reactor column. The reactive distillation system in the study is the production of ethyl acetate etac via esterification of acetic acid hac with ethanol etoh using sulphuric acid as homogeneous catalyst. Ethyl acetate is a most familiar ester of ethanol which you can easily remember by its regular usage in our daily life. Pdf simulations and economic analyses of ethyl acetate. Simulation study on the application of reactive distillation. Separation of ethyl acetate from ethanol by azeotropic. A novel intensification technologymicrowave reactive distillation mrd process was developed by coupling the microwave irradiation and reactive distillation rd process to break through the limitations of the rd process, such as low esterification reaction rate. Organic solvents for separating ethyl acetateethanol by. Methyl acetate production, reactive distillation and conventional process. Effects of the distillate rate, feed location of the reactants, reflux ratio, and liquid holdup as design and operation variables on the performance of the reactive distillation were examined. The simulation results show that the hybrid approach gives better predictions for this highly nonideal system.
Production of highpurity ethyl acetate using reactive. I would like to thanks all other faculty members for their support and help whenever needed. Computer simulation applied to separate ethanol from ethyl. For a long time, industrial production of ethyl acetate has been catalyzed by concentrated sulfuric acid, which entails severe corrosion, many side reactions and complicated process. The modeling, simulation, and optimization of the reactive distillation esterification process used for the production of methyl acetate have been carried out in this work with the aid of aspen plus. It is also called as ethyl ethanoate, commonly abbreviated etoac or ea. Herein, a systematic conceptual design, optimization, and control approach.
Design and optimization of acetic acid dehydration processes. Reactive distillation can be used in the separation of acetic acid from water. Control of reactive distillation process for production of ethyl acetate haoyeh lee a, hsiaoping huang a, ilung chien b a department of chemical engineering, national taiwan university, taipei 10617, taiwan, roc. In this paper, we study the dynamics and control of a reactive distillation column for the production of ethyl acetate from acetic acid and ethyl alcohol. Pushing and pulling the equilibrium through bubble.
Initially, we propose a configuration that involves feeding the two reactants in different trays and allows for the attainment of higher conversion and purity at the steady state than does the conventional configuration, which involves. The aspen plus reactive distillation process model was developed and simulated using radfrac packed column the rectification and the stripping. Pushing and pulling the equilibrium through bubble mediated reactive separation for ethyl acetate production. Investigations on reactive membrane separation have led huang and al. Dynamics of reactive distillation for the production of ethyl acetate. This reaction mixture is again added to the reactive distillation. Control of reactive distillation process for production of ethyl acetate. Abstract this work presents the modeling and simulation of ethyl acetate reactive distillation column using aspen plustm simulation software. Reactive distillation is a process where simultaneous chemical reaction and vapourliquid phase separation take place. Ethyl acetate is readily separated from ethanol by azeotropic distillation. Occurrence in wines edit ethyl acetate is the most common ester in wine, being the product of the most common volatile organic acid acetic acid, and the ethyl alcohol generated during the fermentation. Pushing and pulling the equilibrium through bubble mediated. Preliminary studies on the use of reactive distillation in.
Simulations and economic analyses of ethyl acetate. Wikisheet reactive distillation methyl acetate production, reactive distillation and conventional process from kiss 20 chapter according to jeffrey siirola 1996 in spite of the date, the layout of siirola still represents the basics well. A new heterogeneous contacting method for the synthesis of ethyl acetate through fine bubbles tests the hypothesis that reactive distillation can pull the reaction nearer to completion, reducing the downstream separation. Ethyl acetate is rarely selected as a reaction solvent because it is prone to hydrolysis, transesterification, and condensations. Pdf modeling of reactive distillation column for the.
Optimal design and effective control of triplecolumn. The process parameters such as total feed flow rate. Microwave reactive distillation process for production of ethyl acetate. Methyl acetate production, reactive distillation and conventional process from kiss 20 chapter according to jeffrey siirola 1996 in spite of the date, the layout of siirola still represents the basics well.
Production of npropyl acetate by reactive distillation experimental and theoretical study m. Reactive distillation column for the production of ethyl acetate using simultaneous solution after linearization and insideoutside method, a tearing algorithm is compared in9 using a tray ethyl acetate producing column. From this diagram, the following conclusions can be drawn. Abstractthe reaction of acrylic acid and 2ethyl1 hexanol was explored in this work with the intent of process intensification. Optimization of the ethyl acetate reactive distillation process. The production of highpurity ethyl acetate etac using reactive distillation rd is studied experimentally in a pilotscale plant. Reactive distillations for the production of ethyl acetate etac and isopropyl acetate ipac are classified as the typeii process where the first column consists of a reactive zone and a. Pervaporation coupled process for ethyl acetate production with water removal from reboiler and acetic acid recycle bida lv, gongping liu, xueliang dong, wang wei, and wanqin jin state key laboratory of materialsoriented chemical engineering, nanjing university of technology, 5 xinmofan road, nanjing.
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