Modeling and Simulation of an Industrial Formaldehyde Absorption System

Braz, Catarina G.; Lutters, Nicole; Rocha, Jorge; Alvim, Ricardo; Kenig, Eugeny Y.; Matos, Henrique A.

doi:10.1021/acs.iecr.9b07013

Cited by 6 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Even so, too much stages can lead to excessive operational cost without much gain in yield. This is why optimization of absorption stages need to be done [16].…”

Section: Absorption Column Optimizationmentioning

confidence: 99%

Optimization of Energy Consumption in Formaldehyde Production Process Using Reboiled Absorption Process

Sebastian,

Adhyaksa,

Kamal

et al. 2024

J. Chem. Eng. Res. Prog.

View full text Add to dashboard Cite

Formaldehyde is a crucial chemical building block in various industries, and its production often involves energy-intensive processes. This study focuses on optimizing energy consumption in formaldehyde production, explicitly employing the reboiled absorption process with a production capacity of 27,000 tons per year. The objective of this article is to develop a more energy-efficient process of formaldehyde synthesis by addition or refrigerant cycle stream to preserve the energy, reducing energy consumption and improving the sustainability of the process. The reboiled absorption process involves the absorption of formaldehyde gas into a liquid absorbent, followed by reboiling to release the absorbed formaldehyde. A comprehensive analysis of the entire production system compares unmodified and modified process simulations, heat integration, and energy analysis. Beside the energy consumption of the process, the number of stages within the absorption process contributes to the product mass flow rate of the overall process by increasing the surface area which mass transfer can occur. However, adding too many stages to the process may negatively impact the energy efficiency of the process. Therefore, optimizing energy consumption and absorption processes in formaldehyde production is essential to improve the sustainability of the process and increase the overall profitability of the production process. The results show that the proposed method dramatically improves the sustainability of CH2O synthesis by reducing overall energy consumption and emissions by 93.978%, reducing energy consumption from 153,735,360.4 kJ/h to 9,256,646.618 kJ/h. Copyright © 2024 by Authors, Published by Universitas Diponegoro and BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

show abstract

“…Even so, too much stages can lead to excessive operational cost without much gain in yield. This is why optimization of absorption stages need to be done [16].…”

Section: Absorption Column Optimizationmentioning

confidence: 99%

Optimization of Energy Consumption in Formaldehyde Production Process Using Reboiled Absorption Process

Sebastian,

Adhyaksa,

Kamal

et al. 2024

J. Chem. Eng. Res. Prog.

View full text Add to dashboard Cite

show abstract

“…Therefore, the latter model is considered the most appropriate approach to model this system, as the equilibrium-based approach corrected with packing efficiency is not adequate to describe multicomponent systems, the complexity of mass transfer and hydrodynamic phenomena is not accurately simulated, and population balance models require extensive experimental data. Rate-based models have been successfully implemented in similar unit operations, such as absorption columns and distillation columns . Mohanty describes the dispersed phase as pseudohomogeneous for the rate-based model, illustrated in Figure .…”

Section: Model Developmentmentioning

confidence: 99%

Rigorous Dynamic Modeling and Simulation of an Industrial Liquid–Liquid Extraction Packed Column for Biodiesel Washing

Pinho,

Braz,

Granjo

et al. 2023

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

This work focuses on developing a dynamic model of a packed bed column for biodiesel washing. Its development was motivated by increasing problems in these columns when higher amounts of waste cooking oil and other low-quality fatty materials are incorporated as raw materials. This incorporation causes the formulations of raw oil to change significantly, requiring process flexibility and adequate control systems to maintain the product within strict quality standards and prevent operational problems. A detailed rate-based model of a packed column is implemented in gPROMS ModelBuilder, accounting for mass transfer and hydrodynamics phenomena such as holdup, flooding, and phase inversion. The model is compared to data from an industrial unit. The simulation results are in good agreement with the typical concentration values measured in the industrial unit. Using the developed model, the influence of operating parameters and the presence of contamination on the column’s behavior are studied.

show abstract

Design of a process for the provision of methanolic formaldehyde solutions of low water content from aqueous formaldehyde solutions

Tönges

Burger

2023

Chemical Engineering Research and Design

View full text Add to dashboard Cite

Modeling and Simulation of an Industrial Formaldehyde Absorption System

Cited by 6 publications

References 32 publications

Optimization of Energy Consumption in Formaldehyde Production Process Using Reboiled Absorption Process

Optimization of Energy Consumption in Formaldehyde Production Process Using Reboiled Absorption Process

Rigorous Dynamic Modeling and Simulation of an Industrial Liquid–Liquid Extraction Packed Column for Biodiesel Washing

Design of a process for the provision of methanolic formaldehyde solutions of low water content from aqueous formaldehyde solutions

Contact Info

Product

Resources

About