Control Strategies for a Combined Batch Reactor/Batch Distillation Process

1996 ◽  
pp. 274-294 ◽  
Author(s):  
Eva Sørenson ◽  
Sigurd Skogestad
Keyword(s):  
Control Strategies ◽  
Batch Reactor ◽  
Distillation Process ◽  
Batch Distillation

NARX Neural Network Modeling of Batch Distillation Process

2021 ◽  
Author(s):  
Adi Novitarini Putri ◽  
Carmadi Machbub ◽  
Egi Muhammad Idris Hidayat
Keyword(s):  
Neural Network ◽  
Network Modeling ◽  
Neural Network Modeling ◽  
Distillation Process ◽  
Batch Distillation ◽  
Narx Neural Network

Recursive Orthogonal Least Square Based Soft Sensor for Batch Distillation

2016 ◽  
Vol 11 (3) ◽  
pp. 241-263 ◽  
Author(s):  
Shubham Mehta ◽  
Harish Ramani ◽  
Nileshkumar N. Yelgatte ◽  
Imran Rahman
Keyword(s):  
Least Square ◽  
Reflux Ratio ◽  
Distillation Process ◽  
Batch Distillation ◽  
Process Data ◽  
Feed Composition ◽  
Rbf Network ◽  
Computational Requirement ◽  
Orthogonal Least Square ◽  
Mimo Model

Abstract A multiple-input and multiple-output (MIMO) model, namely Recursive Orthogonal Least Square (ROLS) based radial basis function (RBF) is developed to estimate product compositions in a batch distillation process from temperature measurements. The process data is generated by simulating the differential equations of the batch distillation process, changing the initial feed composition and boiluprate from batch to batch. Moreover, the reflux ratio is also randomly varied within each batch to represent the exact dynamics of the batch distillation. Temperature and distillate composition is correlated by the RBF trained by ROLS algorithm. A Single RBF network estimate the quality of products in real-time. The results show that ROLS based estimator give correct composition estimations for a batch distillation process. The robustness of the ROLS algorithm and low computational requirement makes the estimator attractive for on-line use.

scholarly journals Experimental studies on reactive distillation of propionic acid using n-butanol as entrained

2018 ◽  
Vol 7 (3.29) ◽  
pp. 46
Author(s):  
Raju. Kalakuntala ◽  
R Navya ◽  
T Sisira ◽  
V V. Basava Rao ◽  
Srinath. Surnani
Keyword(s):  
Propionic Acid ◽  
Chemical Engineering ◽  
Reactive Distillation ◽  
Experimental Studies ◽  
Raw Material ◽  
Esterification Reaction ◽  
Distillation Process ◽  
Batch Distillation ◽  
Initial Concentration ◽  
Weight Percentage

Reactive distillation is a cost effective chemical engineering process intensification method which involves the reaction and separation simultaneously in a single unit. In the present work the system selected was Propionic acid and n-butanol which undergoes esterification reaction to form butyl propionate. Propionic acid is an important raw material from a biodegradable polymer. The experiments were done in both conventional batch distillation and reactive distillation. In conventional batch distillation no catalyst were used were as in reactive distillation amberlite catalyst used with various weight percentage. several experiments performed by varying the initial concentration(i.e. 0.1,0.2,0.4,0.6,0.8,0.99) of Propionic acid, mole ratios of Propionic acid & n-butanol(that is 1:1 ,1:1.5 ,1:2 And amberlite catalyst weight percent (i.e. 1,2 and 3).the conventional batch distillation and reactive distillation were compared. it is found that maximum conversion obtained in conventional distillation process is 81% and in reactive distillation is 95.1% at the optimum conditions are at initial concentration 0.6 ,mole ratio 1:2 And amberlite catalyst weight percentage 3 .And the recovery of water is more in reactive distillation as compared with the conventional batch distillation .So reactive distillation process is better than conventional distillation.  

scholarly journals Control strategies for reactive batch distillation

1994 ◽  
Vol 4 (4) ◽  
pp. 205-217 ◽  
Author(s):  
Eva Sørensen ◽  
Sigurd Skogestad
Keyword(s):  
Control Strategies ◽  
Batch Distillation ◽  
Reactive Batch Distillation

Semi-Continuous Reactive Batch Distillation for Production of Methyl Formate

2011 ◽  
Vol 301-303 ◽  
pp. 290-297
Author(s):  
Ying Li ◽  
Hong Mei Qu ◽  
Ye Tian ◽  
Shuang Song ◽  
Peng Bai
Keyword(s):  
Formic Acid ◽  
Methyl Formate ◽  
Batch Reactor ◽  
Optimal Operation ◽  
Batch Distillation ◽  
Estimated Parameters ◽  
Runge Kutta Method ◽  
Different Temperatures ◽  
Reactive Batch Distillation ◽  
Kinetics Of

Reaction kinetics of the esterification of Methyl Formate (MF) is studied in a batch reactor at different temperatures and the reliability of the estimated parameters is analyzed with Matlab using a fourth order Runge-Kutta method in the paper. Kinetic constants were experimentally examined and used to calculate the optimal operation parameters of semi-continuous reactive distillation for production of MF in order to minimize the amount of unconverted Formic Acid (FA) remained in the bottom. The results show that the optimal condition is obtained at the formic acid/methanol mole ratio of 0.5:1 and the mass fraction of formic acid at the bottom is 2% which is very close to the calculated value. Simulation work was carried out with Matlab and the results showed good agreement with the experimental data.

Separation of Organic Chlorine Compounds through Batch Distillation Process

2010 ◽  
Vol 5 (1) ◽  
Author(s):  
Romildo Pereira Brito ◽  
Fabricio Machado
Keyword(s):  
Industrial Process ◽  
Operation Time ◽  
Separation Process ◽  
Nonlinear Phenomena ◽  
Operating Pressure ◽  
Distillation Process ◽  
Batch Distillation ◽  
Organic Chlorine ◽  
State Regime ◽  
Column Pressure

In the present work simulation studies were carried out focusing on the separation of a mixture of chlorinated hydrocarbons of an industrial process stream by batch distillation process. The effect of different process variables on the performance of the batch separation process was evaluated. Based on the simulation results, it was observed that the column pressure has a significant effect on the condenser operation, indicating that operating pressure equal to 3 bar is more favorable to the process. It was shown that high values of the reboiler heat duty lead to a decrease in the operation time necessary to attain the steady state regime. Regarding the influence of the column reflux, it was also observed that reflux values exceeding 1.0 reduce the separation process performance, leading to a poor recovery of the components in the product tank. It was illustrated the occurrence of multiple steady states as a consequence of nonlinear response of the process to the reboiler holdup, characterized by complex nonlinear phenomena.

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