Results 31 to 40 of about 768 (174)

Application of Thermodynamic Models to Predict the Solubility of Biologically Active Substances

Разработка и регистрация лекарственных средств, 2023
Introduction. The choice of solvents for the processes of extraction of biologically active substances from natural raw materials, the processes of purification of natural and synthesized substances by extraction, crystallization and dissolution methods ...
K. S. Stepanov, G. N. Turmanidze, V. V. Sorokin, A. D. Sakharov   +3 more
doaj   +1 more source

Evaluation of the adequacy of phase equilibria modeling based on various sets of experimental data

Тонкие химические технологии, 2022
Objectives. The purpose of the paper is to compare the adequacy of mathematical models of vapor–liquid equilibrium (VLE) and their ability to reproduce the phase behavior of the ternary system benzene–cyclohexane–chlorobenzene using different ...
A. V. Frolkova, V. G. Fertikova, E. V. Rytova, A. K. Frolkova   +3 more
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

Liquid-Liquid Equilibrium of Quaternary Systems: Experimental Data and NRTL Model Predictions for Water, Lactic Acid, 1-Octanol, and Salts [PDF]

Chemical and Biochemical Engineering Quarterly
This study investigates the liquid–liquid equilibrium (LLE) behavior of ternary and quaternary systems composed of water, lactic acid, 1-octanol, and salts (NaCl and KCl). Phase behaviour was predicted using the non-random two-liquid (NRTL) model.
D. Laiadi, K. Athmani, C. Laiadi, E. Guettaf Temam, A. Merzougui, A. Hasseine   +5 more
doaj   +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

Liquid-liquid Equilibria for Quaternary System of Eugenol (1) + β-Caryophyllene (2) + 1-Propanol (3) + Water (4) at Temperatures 303.15, 313.15, and 323.15 K

MATEC Web of Conferences, 2018
In this work, the experimental liquid–liquid equilibrium (LLE) data were measured for quaternary mixtures of eugenol(1) + β–caryophyllene(2) + 1-propanol(3) + water(4) at temperatures 303.15, 313.15, and 323.15 K and at atmospheric pressure.
Hidayatulloh Irwan, Nugroho Nurcahyo, Wibawa Gede, Kuswandi Kuswandi   +3 more
doaj   +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