Results 31 to 40 of about 671 (174)

A modified NRTL model for accurate phases equilibria: Part I: application to vapor–liquid equilibrium

Results in Engineering
This study presents a modified Non-Random Two-Liquid (NRTL) model that enhances vapor–liquid equilibrium (VLE) correlations across binary and ternary systems and prediction of VLE in quaternary systems. The improvement is due to a structural modification
Radouane CHATIT, Brahim MESSNAOUI, Hamid ELMAAZOUZI, Abdessamad TOUNSI   +3 more
doaj   +1 more source

Study of Thermodynamic Modeling of Isothermal and Isobaric Binary Mixtures in Vapor-Liquid Equilibrium (VLE) of Tetrahydrofuran with Benzene (303.15 K) Cyclohexane (333.15 K), Methanol (103 kPa), and Ethanol (100 kPa)

Thermo, 2021
Tetrahydrofuran (THF) is an aprotic solvent with multiple applications in diverse areas of chemical, petrochemical, and pharmaceutical industries with an important impact in chemical waste liquid with other solvents.
Leonardo Steyman Reyes Fernández, Eliseo Amado-Gonzaléz, Erik Germán Yanza Hurtado   +2 more
doaj   +1 more source

Modeling of Ternary Solid-Liquid-Equilibria for Pharmaceutical and Food Systems

Chemical Engineering Transactions, 2015
The present work deals with the modeling of solid-liquid equilibria (SLE) using the NRTL and the UNIFAC thermodynamic models for activity coefficient calculation, for a number of ternary systems involving pharmaceutical and food compounds such as ...
K. Bitchikh, A.H. Meniai, W. Louaer
doaj   +1 more source

Modeling of the solubility of Naproxen and Trimethoprim in different solvents at different temperature

MATEC Web of Conferences, 2013
The study concerns the prediction of the solubility of pharmaceutical compounds such as Trimethoprim and Naproxen in various solvents like Methanol, Ethanol, 1-Propanol, 2-Propanol, 1-Butanol and 2-Butanol for the first solute and Chloroform, Octanol and
Moudjari Y., Louaer W., Meniai A-H.
doaj   +1 more source

Automated generative process synthesis via transformer‐based dual‐loop simulation and optimization

AIChE Journal, EarlyView.
Abstract This study presents a novel framework for automated generative process synthesis, addressing the complexity of simultaneously optimizing discrete topologies and continuous operating variables. To overcome conventional superstructure limitations, we propose a dual‐loop architecture integrating generative transformers with rigorous process ...
Yeong Woo Son, Chan Kim, Ji Hun Pak, Hain Lee, Jong Min Lee   +4 more
wiley   +1 more source

Impact of Distillation Column Design on Potential for the Integration of Mechanical Vapor Recompression

Chemie Ingenieur Technik, EarlyView.
Mechanical vapor recompression integration in distillation is analyzed, focusing on feed preheating and column pressure drop. Binary methanol–water and benzene–toluene separations are studied to identify optimal designs, which are further assessed in a bioethanol vacuum distillation sequence regarding energetic, ecological, and economic performance ...
Thorben Hochhaus, Sebastian Siepmann, Marcus Grünewald, Julia Riese   +3 more
wiley   +1 more source

Energy Flexibilization and Demand Response for a Novel Decentralized Power‐to‐Methanol Process

Chemie Ingenieur Technik, EarlyView.
This study presents the results of an optimization framework for the scheduling of a Power‐to‐methanol process coupled with an electrolyser, renewable energy sources and a battery. The optimal dynamic operating schedule is computed with different configurations and boundary conditions, showing the advantages of flexible operation.
Max Kollmer, Markus Vogelbacher, Mücahit Terzi, Mohit Singh, Francsico Vidal‐Vazquez, Jörg Matthes   +5 more
wiley   +1 more source

Performance comparison of pressure swing adsorption and amine‐based absorption for synthesis gas purification

The Canadian Journal of Chemical Engineering, EarlyView.
Comparison of PSA and amine‐based absorption for syngas purification shows that PSA offers lower energy intensity, global warming potential, and minimum selling price, making it a more sustainable option. However, absorption achieves higher syngas purity. A GREENSCOPE‐based multi‐criteria assessment guides optimal process selection.
Magno Fonseca Santos, Antonio Esio Bresciani, Rita Maria Brito Alves   +2 more
wiley   +1 more source

Assessing Water Solubility of Ester‐Based Oils and Unravelling Their Mechanisms by a Quantitative Model

High Voltage, EarlyView.
ABSTRACT Moisture is a sensitive issue for transformer oils, as it adversely affects the stability of insulation papers and dielectric strength of the oils. However, the lack of a quantitative model makes it challenging to evaluate the water solubility of ester‐based oils, which is an undesirable restriction for developing novel ester‐based oils ...
Linyang Dan, Xin Chen, Hao Wen, Feng Tang, Jinlu Sheng, Nan Liu   +5 more
wiley   +1 more source

Consolidation of multiple binary distillation columns for large heat duty savings

AIChE Journal, Volume 72, Issue 7, July 2026.
ABSTRACT The enormous scales of chemical and petrochemical plants present significant challenges in separating and purifying numerous mixed streams generated within a facility, as well as in achieving effective energy utilization and process intensification.
Parikshit S. Kadu, Rakesh Agrawal
wiley   +1 more source