Design and Control of Ethyl Acetate Production Process

Authors

  • K. Nagamalleswara Rao Bapatla Engineering College (Autonomous), Bapatla, Andhra Pradesh, India
  • M. Venkata Ratnam Bapatla Engineering College (Autonomous), Bapatla, Andhra Pradesh, India
  • G. Koteswara Reddy Bapatla Engineering College (Autonomous), Bapatla, Andhra Pradesh, India
  • P. Rajendra Prasad AU College of Engineering, Andhra University, Vizag, India
  • V. Sujatha AU College of Engineering, Andhra University, Vizag, India

Keywords:

Steady state simulation, dynamic simulation, plant-wide operability, temperature control loop, Aspen Energy Analyzer

Abstract

In this study, the design and control of ethyl acetate production plant has been investigated. The proposed design consists of a continuous-stirred tank reactor and two distillation columns. Ethanol reacts with acetic acid and gives ethyl acetate and water. Plant-wide operability and control of the entire process plant with decentralized controllers is explained by doing both steady state and dynamic simulations. Tray temperature control loop performance is tested for the second distillation column. From the results of dynamic simulation, the proposed control strategy performs very well in rejecting various disturbances while maintaining the ethyl acetate product purity with a settling time of less than 5 h. Heat integrations are performed by using Aspen Energy Analyzer. Air, medium pressure (MP) steam and low pressure (LP) steam cold and hot utilities was proposed to exchange heat with the process streams. The heat exchange was integrated into an existing heat exchanger network (HEN), and the integration was analyzed using pinch analysis. After analysis using retrofit studies an alternative HEN is proposed to save the energy. The new retrofit HEN is achieved by adding two new heat exchangers and the payback period reported is 0.85 years which is less than one year which shows it is a profitable design.

Author Biographies

K. Nagamalleswara Rao, Bapatla Engineering College (Autonomous), Bapatla, Andhra Pradesh, India

Department of Chemical Engineering

M. Venkata Ratnam, Bapatla Engineering College (Autonomous), Bapatla, Andhra Pradesh, India

Department of Chemical Engineering

G. Koteswara Reddy, Bapatla Engineering College (Autonomous), Bapatla, Andhra Pradesh, India

Department of Chemical Engineering

P. Rajendra Prasad, AU College of Engineering, Andhra University, Vizag, India

Department of Chemical Engineering

V. Sujatha, AU College of Engineering, Andhra University, Vizag, India

Department of Chemical Engineering

Downloads

Published

2019-06-01

Issue

Vol. 2 No. 1 (2015)

Section

Articles

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.