Process Simulation of Sulfuric Acid Recovery by Azeotropic Distillation: Vapor–Liquid Equilibria and Thermodynamic Modeling

2014 ◽  
Vol 53 (29) ◽  
pp. 11794-11804 ◽  
Author(s):  
Geng Li ◽  
Edouard Asselin ◽  
Zhibao Li
Keyword(s):  
Sulfuric Acid ◽  
Thermodynamic Modeling ◽  
Process Simulation ◽  
Azeotropic Distillation ◽  
Acid Recovery ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid

scholarly journals Prospective Evaluation of Spent Sulfuric Acid Recovery by Process Simulation

2020 ◽  
Author(s):  
Krisztina Várnai ◽  
László Petri ◽  
Lajos Nagy
Keyword(s):  
Sulfuric Acid ◽  
Energy Consumption ◽  
Process Simulation ◽  
Azeotropic Distillation ◽  
Current Mode ◽  
Prospective Evaluation ◽  
Simulation And Optimization ◽  
Acid Recovery ◽  
Steady State Simulation ◽  
Counter Current

This study presents the steady-state simulation and optimization with regard to the recovery of spent sulfuric acid. Our purpose was to prove the utility of process simulation in terms of designing with special materials using energy-efficient methods. Process simulation is used in order to compare technological variants, analyze technological problems that occur as well as optimize the process. In this investigation three concentration processes are compared: azeotropic distillation and multiple-effect evaporation both in co-current and counter-current modes. The main aspects of the comparison are energy consumption and heat efficiency. Process simulation is an adequate tool for analyzing the thermal decomposition of sulfuric acid, the presence of sulfuric acid in the vapor fraction, and the costs of applying a third agent. Here, three models and a simulation-based prospective evaluation of energy consumption and the economy are presented. It is shown that the process of azeotropic distillation consumes an extremely large amount of thermal energy which seems to be more than that consumed by single-effect evaporation, while triple-effect evaporation in the counter-current mode was found to be the most thermally efficacious.

Thermodynamic modeling of vapor-liquid equilibria and excess properties of the binary systems containing diethers and n-alkanes by cubic equation of state

2004 ◽  
Vol 21 (4) ◽  
pp. 858-866 ◽  
Author(s):  
Slobodan P. šerbanović ◽  
Ivona R. Grgurić ◽  
Mirjana Lj. Kijevčanin ◽  
Aleksandar Z. Tasić ◽  
Bojan D. Djordjević
Keyword(s):  
Equation Of State ◽  
Thermodynamic Modeling ◽  
Binary Systems ◽  
Excess Properties ◽  
Cubic Equation Of State ◽  
Cubic Equation ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid

scholarly journals Corrigendum

2021 ◽  
Vol 65 (2) ◽  
pp. 281
Author(s):  
Periodica Polytechnica Chemical Engineering
Keyword(s):  
Sulfuric Acid ◽  
Process Simulation ◽  
Online Version ◽  
Prospective Evaluation ◽  
Correct Version ◽  
Acid Recovery

Krisztina Várnai, László Petri, Lajos Nagy "Prospective Evaluation of Spent Sulfuric Acid Recovery by Process Simulation", 65(2), pp. 243–250, 2021. (in this issue)https://doi.org/10.3311/PPch.15679When the above article was first published online Fig. 8 was incorrect. This has now been corrected in the online version. The correct version of Fig. 8 is published here.

Measurements and Thermodynamic Modeling of Vapor−Liquid Equilibria in Ethane−Water Systems from 274.26 to 343.08 K

2004 ◽  
Vol 43 (17) ◽  
pp. 5418-5424 ◽  
Author(s):  
Amir H. Mohammadi ◽  
Antonin Chapoy ◽  
Bahman Tohidi ◽  
Dominique Richon
Keyword(s):  
Thermodynamic Modeling ◽  
Water Systems ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid
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