scholarly journals Feed Plate and Feed Adsorbent Temperature Optimisation of Distillation – Adsorption Process to Produce Absolute Ethanol

2015 ◽  
Vol 9 (7) ◽  
pp. 140 ◽  
Author(s):  
Fadlilatul Taufany ◽  
Nonot Soewarno ◽  
Koko Yuwono ◽  
Dimas Ardiyanta ◽  
Melvina Eliana ◽  
...  
Keyword(s):  
Molecular Sieve ◽  
Distillation Column ◽  
Adsorption Process ◽  
Absolute Ethanol ◽  
Primary Study ◽  
Reflux Ratio ◽  
Separation Processes ◽  
Sieve Tray ◽  
Distillation System ◽  
Adsorption Processes

Two subsequent separation processes are required to produce absolute ethanol (at least purity of 99.5% v/v),namely the distillation and adsorption processes. Thus, it is important to find the optimum operation conditionfor those following processes. The aims of the present study are to optimize the feed plate of distillation and thetemperature of feed adsorbent. This study is conducted using a continuous sieve tray distillation system with thenumber of 16 trays, the length-diameter ratio of 80.64, the reflux ratio of 3.5, and the feed with ethanol contentof 10 % v/v ethanol, which is produced via the fermentation process of molasses. To conduct the first aim of thisstudy, the feed enters the distillation column with several of variable feed plate, i.e. 12, 13, 14, and 15. This feedplate location is calculated from the top of the column. On the other hand, the second aim of this study, isconducted using the subsequent combination of distillation and adsorbent columns, where the distillate (purity ofethanol around 95% v/v) from the distillation column is then flowed into the adsorbent column with various feedadsorbent temperature, i.e. 80 °C, 90 °C, 100 °C, and 110 °C, to be purified as an absolute ethanol. Here theadsorbent column is designed as a fix bed adsorption column with a molecular sieve of 3A (zeolite) is used as anadsorbent for that purification process. Our results showed that the optimum feed plate is 14, because at thisplate the ethanol distillate has the highest content among those various variables. Meanwhile, the optimumtemperature of feed adsorbent is 90° C, which requires the least energy for the distillation - adsorption process,i.e. at 18691 kJ/kg absolute ethanol. This primary study is expected to be an alternative way to optimize theoperating condition of the sieve tray distillation-molecular sieve adsorption system by means of acquiring aminimum energy involving in the process to achieve the highest purity of ethanol.

scholarly journals Performance of Appended Wire Mesh Packing in Sieve Tray Distillation Column of Ethanol-Water System

2015 ◽  
Vol 9 (7) ◽  
pp. 148
Author(s):  
Fadlilatul Taufany ◽  
Nonot Soewarno ◽  
Melvina Eliana Sutanto ◽  
Indi Raisa Girsang
Keyword(s):  
Distillation Column ◽  
Water System ◽  
Interfacial Area ◽  
Wire Mesh ◽  
Water Mixture ◽  
Valve Tray ◽  
Sieve Tray ◽  
Distillation System ◽  
Preliminary Study ◽  
The Wire

For the separation process in liquid-liquid mixture such as ethanol-water mixture, a sieve tray distillation columnis an alternatif for affordable process and maintenance. However to date, this sieve tray system is still currentlyhaving a lower Murphee efficiency and smaller interfacial area, as compared to other tray system, that is, either abubble cap or valve tray. Therefore it is of important to optimize the performance of sieve tray distillation bymeans of adding the wire mesh packing on that tray, as being the aim of the present study. This study isconducted by using a batch sieve tray distillation system, where the wire mesh packing is added on the third traythat is calculated from the top of the column, to avoid flooding inside the column. Here the resulting fermentedmolasses of containing a 10% volume of ethanol is used as a mixture distillation feed. The height of the wiremesh packing being studied is varied as 5 cm, 3 cm, and 2 cm. Our results showed that the Murphee efficiencyobtained by the variation of the packing height of 5 cm, 3 cm, 2 cm and without packing were 73.5%, 66.27%,56.86%, and 46.7% respectively, and were increased by subsequent level of the packing height. Thecorresponding hydrodynamic properties of this appended packing sieve tray distillation by means of theinterfacial area were 11.88 cm2/cm3, 0.48 cm2/cm3, and 0.32 cm2/cm3, while its pressure drop measured from thewater manometer height were 38.33 cm H2O/m, 30 cm H2O/m, 10 cm H2O/m for the packing height of 5 cm, 3cm, 2 cm height, respectively. The increasing of the performance of appended packing sieve tray distillation bymeans of the Murphee efficiency is explained by the increasing of the interfacial area for vapour-liquid than thetray itself. This preliminary study is expected to be a pioneer study of strategy to increase the performance ofconventional sieve tray distillation that is known as a kind of affordable distillation process.

scholarly journals Construction of Simulation for Adsorption Process Visualization

2019 ◽  
Vol 8 (2S6) ◽  
pp. 420-423
Keyword(s):  
Process Modeling ◽  
Adsorption Process ◽  
Numerical Data ◽  
Chemical Processes ◽  
Purification Process ◽  
Separation Processes ◽  
Visualization System ◽  
Process Visualization ◽  
Adsorption Processes ◽  
Future Work

Recently, with the development of biotechnology, much interest has been focused on chromatographic adsorption processes for separation of biomolecules such as proteins, which are important. The efficiency of the adsorption process was improved by visualizing the data by simulation. The system visualized numerical results according to adsorption process modeling easily and efficiently. It is possible to predict the expected result even if the numerical data is inputted without going through the conventional experiment. The purification process of biological and chemical processes may involve several stages of chromatographic separation processes. The system visualizes the results of the simulation according to the adsorption process modeling or makes it appear as a curve graph. Therefore, in this paper, we design and implement a simulation system for adsorption process modeling. The currently developed simulation visualization system is a visualization of the result values that are driven by the existing engine, so future work will enable the engine to operate in the system itself

Isopropyl Lactate Obtaining by Transesterification in Reactive Distillation System

2019 ◽  
Vol 70 (1) ◽  
pp. 18-22
Author(s):  
Olga Valerica Taga (Sapunaru) ◽  
Claudia Irina Koncsag ◽  
Ana Maria Sivriu ◽  
Gheorghita Jinescu
Keyword(s):  
Organic Synthesis ◽  
Distillation Column ◽  
Reactive Distillation ◽  
Industrial Applications ◽  
Molar Ratio ◽  
Reflux Ratio ◽  
Synthesis Reaction ◽  
Methyl Lactate ◽  
Independent Variables ◽  
Distillation System

Transesterification is a classical organic synthesis reaction with many uses in both laboratory and industrial applications. In this reaction, one ester is converted to another by the radical alkoxy exchange. In some cases, the transesterification process is more advantageous when used in the manufacturing of esters than their synthesis by direct esterification of the carboxylic acids with alcohols. Based on literature studies, a transesterification study coupled with the reactive distillation (RD) was performed in order to obtain isopropyl lactate (IPL) by methyl lactate (ML) with isopropanol (IPA). The independent variables studied were: the alcohol / methyl lactate molar ratio (R), the number of the theoretical stages in the fractionation zone (NTS) and the reactive distillation column reflux ratio (RR). The experimental matrix was set for a 23 factorial experiment with three variables at two levels: R = 2 and 4; NTS = 1.7, respectively 2.4 and RR = 2 and 7. A linear mathematical model was proposed to correlate the methyl lactate conversion with all three variables. The model is reliable as the statistical analysis proved.

Fluid-Dynamics Study of Multiphase Flow in a Sieve Tray of a Distillation Column

2010 ◽  
pp. 73-78 ◽  
Author(s):  
Joel G. Teleken ◽  
Leandro O. Werle ◽  
Iaçanã G.B. Parisotto ◽  
Cintia Marangoni ◽  
Ana Paula Meneguelo ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Multiphase Flow ◽  
Distillation Column ◽  
Sieve Tray

Enhanced decolorization of dyes by an iron modified clay and thermodynamic parameters

2016 ◽  
Vol 73 (8) ◽  
pp. 2007-2016 ◽  
Author(s):  
N. Contreras Olivares ◽  
M. C. Díaz-Nava ◽  
M. Solache-Ríos
Keyword(s):  
Thermodynamic Parameters ◽  
Adsorption Process ◽  
Sorption Kinetics ◽  
Homogeneous Material ◽  
Modified Clay ◽  
Adsorption Capacities ◽  
Adsorption Processes ◽  
Kinetics And Isotherms ◽  
Material Temperature ◽  
Maximum Removal

The sorption processes of red 5 (R5) and yellow 5 (Y5) dyes by iron modified and sodium bentonite in aqueous solutions was evaluated. The modified clay was prepared, conditioned and characterized. The sodium clay did not remove any of either dye. The sorption kinetics and isotherms of R5 and Y5 dyes by iron modified clay were determined. The maximum removal percentages achieved were 97% and 98% for R5 and Y5, respectively, and a contact time of 72 h; the experimental data were best adjusted to Ho model. The isotherms of both dyes were best adjusted to the Langmuir model and the maximum adsorption capacities of the modified clay were 11.26 mg/g and 5.28 mg/g for R5 and Y5, respectively. These results indicate that adsorption processes have a high probability to be described as chemisorption on a homogeneous material. Temperature range between 283 and 213 K does not affect the adsorption of Y5 by the iron modified clay, but the adsorption process of R5 was affected, and the thermodynamic parameters could be calculated, which indicate a chemisorption mechanism.

scholarly journals Concentration of the carcinogenic material in a Venezuelan spindle oil by simultaneous molecular distillation and chromatographic adsorption

1944 ◽  
Vol 43 (4) ◽  
pp. 248-251
Author(s):  
J. M. Twort ◽  
R. Lyth
Keyword(s):  
Molecular Distillation ◽  
Room Temperature ◽  
Adsorption Process ◽  
Active Material ◽  
Animal Experiments ◽  
Practical Work ◽  
Inert Material ◽  
Crystalline Solids ◽  
Low Viscosity ◽  
Adsorption Processes

Some concentration of the carcinogenic material in a Venezuelan spindle grade oil has been affected by simultaneous molecular distillation, and further concentration has also been accomplished by subjecting one of the more carcinogenic of these distillates to chromatographic adsorption. Animal experiments revealed that this distillate was about twice as carcinogenic as the oil from which it was derived. Two small fractions obtained from this distillate by chromatographic adsorption were painted on the skin of a few mice and both appeared to be appreciably more carcinogenic than the distillate from which they were derived. Further experiments with one of these fractions and the distillate, not yet completed, indicate that this fraction is at least five times as strong as the distillate from which it was derived. Thus by a combination of molecular distillation and chromatographic adsorption processes we have obtained a fraction about ten times as strong as the original oil. During the chromatographic adsorption process large quantities of colourless, low index, inert or almost inert material of relatively low viscosity have been separated from the highly coloured active remainder. It would appear that the most active material is highly viscous at room temperature, but its activity may be due to the presence in it of crystalline solids.In conclusion we wish to express our thanks to our steward, Mr L. Norburn, for his valuable assistance in the practical work.

Reactive Divided Wall Distillation Column: Simulation and Experiment of Methyl Acetate Hydrolysis

2012 ◽  
Vol 468-471 ◽  
pp. 2785-2789 ◽  
Author(s):  
Yan Wang ◽  
He Xu Ma ◽  
Huai Gong Zhu ◽  
Wei Tang
Keyword(s):  
Methyl Acetate ◽  
Distillation Column ◽  
Reactive Distillation ◽  
Molar Ratio ◽  
Reflux Ratio ◽  
Liquid Distribution ◽  
Divided Wall Column ◽  
New Process ◽  
Simulation And Experiment ◽  
Complex Technology

As a combination of divided wall column (DWC) and reactive-distillation column, the reactive divided wall distillation column is a highly complex technology that reaction and separation can occur simultaneously, which can reduce the energy consumption and decrease the costs of captial and operation. This new process was simulated with PROⅡ software and mini plant experiments were implemented. In addition, we investigated the influences of reflux ratio, liquid distribution ratio and molar ratio of ester in water on the conversion rate of methyl acetate and the purity of the product respectively. It could be seen that the trend from experiments was suitable with simulation results.

scholarly journals Preliminary Studies on the Use of Reactive Distillation in the Production of Beverage Spirits

Beverages ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 29 ◽  
Author(s):  
Jacob Rochte ◽  
Kris Berglund
Keyword(s):  
Gas Chromatography ◽  
Butyric Acid ◽  
Distillation Column ◽  
Reactive Distillation ◽  
Ethyl Butyrate ◽  
Alcoholic Beverages ◽  
Large Excess ◽  
On Demand ◽  
Distillation System ◽  
Ternary Interactions

Distilled alcoholic beverages have been produced through fermentation and distillation for centuries but have not purposefully involved a chemical reaction to produce a flavoring. Introducing a microorganism to produce butyric acid along with the typical yeast ethanol fermentation sets up a reactive distillation system to flavor a spirit with ethyl butyrate and butyric acid. The ternary interactions of water, ethanol, and butyric acid allow all three to vaporize in the stripping distillation, thus they are concentrated in the low wines and give a large excess of ethanol compared to butyric acid for better reaction completion. The stripping distillation has also been modeled on Aspen Plus® V9 software (by Aspen Technology, Inc. Bedford, MA, USA) and coincides well with a test stripping distillation at the bench scale. Amberlyst® 15 wet catalyst was added to a subsequent distillation, resulting in the production of the desired ethyl butyrate in the distillate, measured by gas chromatography. 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. The current results will provide a pathway for creating spirits with a desired flavor on demand without acquiring a heavy capital cost if a beverage distillation column is already purchased.

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