scholarly journals Production of Butyric Anhydride Using Single Reactive Distillation Column with Internal Material Circulation

Processes ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 1 ◽  
Author(s):  
Guanghui Chen ◽  
Fushuang Jin ◽  
Xiaokai Guo ◽  
Shuguang Xiang ◽  
Shaohui Tao
Keyword(s):  
Acetic Anhydride ◽  
Butyric Acid ◽  
Distillation Column ◽  
Reactive Distillation ◽  
Reaction System ◽  
Total Annual Cost ◽  
Material Circulation ◽  
Butyric Anhydride ◽  
Better Than ◽  
Column Process

The traditional two-column reactive distillation (RD) process is used for the production of butyric anhydride, which is synthesized with butyric acid and acetic anhydride via a reversible reaction. In this work, a novel process with a single RD column (SRDC) is designed for the production of butyric anhydride, where the second distillation column for separating excess reactant is removed based on the boiling point profile of the reaction system. Two applications of the proposed SRDC process, namely SRDC with excess butyric acid or acetic anhydride circulating internally, are economically optimized, and the results show that both SRDC processes have a lower total annual cost (TAC) than the traditional two-column process. Furthermore, from the perspective of TAC, the application with an excess feed of butyric acid is better than the application with excess acetic anhydride. The developed technique may also be applied to retrofit other traditional two-column RD processes, where the overhead and bottom products are the lightest and heaviest components of the reaction system, respectively, and no azeotrope is involved in the RD column.

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.

Control and Profile Setting of Reactive Distillation Column for Benzene Chloride Consecutive Reaction System

2013 ◽  
Vol 52 (49) ◽  
pp. 17465-17474 ◽  
Author(s):  
Cuimei Bo ◽  
Jihai Tang ◽  
Mifen Cui ◽  
Kangkang Feng ◽  
Xu Qiao ◽  
...  
Keyword(s):  
Distillation Column ◽  
Reactive Distillation ◽  
Reaction System ◽  
Consecutive Reaction

Influence of the reactive distillation column configuration on its performance: A computational study

2008 ◽  
Vol 62 (1) ◽  
Author(s):  
Zuzana Švandová ◽  
Jozef Markoš ◽  
L’udovít Jelemenský
Keyword(s):  
Flow Rate ◽  
Distillation Column ◽  
Reactive Distillation ◽  
Computational Study ◽  
Reaction System ◽  
Reflux Ratio ◽  
Feed Flow Rate ◽  
Butyl Ether ◽  
Dynamic Simulations ◽  
Tertiary Butyl

AbstractComparison of the performance of a reactive distillation column with three different hardware configurations is presented. As a reaction system the methyl tertiary-butyl ether (MTBE) synthesis has been chosen. The sieve tray columns with catalyst (encased inside wire gauze envelopes) placed along the liquid flow path differ in the number of reactive trays. The column simulations have been performed using the nonequilibrium model. The steady state behaviour of the three different hardware configurations was studied regarding the three input parameters; feed flow rate of methanol, feed flow rate of butenes, and reflux ratio. It has been shown that by varying the location of the methanol feed stage, the columns exhibit significantly different solution diagrams using the butenes feed flow rate as a continuation parameter. Using dynamic simulations, different perturbations of the manipulated variables were found to cause transitions between multiple steady states and these were also investigated. The major objective of this paper is to demonstrate the importance of the hardware choice in the performance of a reactive distillation column e.g. during the start-up or if occasional variations of the operating parameters occur.

Energy-saving investigation of vacuum reactive distillation for the production of ethyl acetate

2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Ganesh N. Patil ◽  
Nirmala Gnanasundaram
Keyword(s):  
Ethyl Acetate ◽  
Reactive Distillation ◽  
Cooling Water ◽  
Design Parameters ◽  
Total Annual Cost ◽  
Operating Pressure ◽  
Cooling Water Temperature ◽  
Pressure Swing ◽  
The Impact ◽  
Better Than

Abstract Ethyl acetate (EtAc) reactive distillation (RD) configurations often use atmospheric pressure, and this operating pressure can be reduced further to conserve energy based on the condenser cooling water temperature. Using the Aspen Plus simulator, two proposed configurations, RD column with stripper and pressure swing reactive distillation (PSRD), were simulated at lower operating pressure. The impact of RD column operating pressure on total energy usage and total annual cost (TAC) was studied. All design parameters were optimized using sequential iterative optimization procedures and sensitivity analysis to minimize the energy cost while maintaining the required product purity at 99.99%. The simulation results showed that the RD column with a stripper is better than PSRD with a saving of 23.17% in TAC and 31.53% in the specific cost of EtAc per kg. Compared to literature results, the proposed configurations have lower reboiler duty requirements and lower cost per kg of EtAc.

scholarly journals Multiplicity Analysis in Reactive Distillation Column Using ASPEN PLUS

2006 ◽  
Vol 14 (3) ◽  
pp. 301-308 ◽  
Author(s):  
Bolun YANG ◽  
Jiang WU ◽  
Guosheng ZHAO ◽  
Huajun WANG ◽  
Shiqing LU
Keyword(s):  
Distillation Column ◽  
Reactive Distillation ◽  
Aspen Plus
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