Laboratory reactor. © Sergey Ryzhov @AdobeStock

Combined convection and radiation drying increases process efficiency and scope. Experiments regarding the influence of convective airflow temperature and radiative power on the mass reduction rate in first-phase drying were performed. A model was developed for the drying rate prediction in 20 µL water droplets and transferred to a polymer solution.

This study compares two pathways for sustainable olefin production: direct electrochemical CO₂ reduction and water electrolysis followed by CO₂ hydrogenation to methanol and conversion to olefins. We analyze energy efficiency and costs, identifying bottlenecks. Direct CO₂ reduction demands better cell potential and faradaic efficiency, while methanol conversion suffers from high overpotentials and olefin selectivity issues.

Thus, the relevance of the present work is the prediction and control of the nanometric particle size range, which is necessary for an efficient silver nanoparticle application in different technological fields. Besides, this work demonstrated how to determine the operating conditions to minimize or maximize the size of the nanoparticles to attend to a specific application, for example.

This study explores how reaction conditions influence the performance of sulfonated styrene resins cross-linked with DVB and TMPTA. Results show that tuning parameters like temperature and solvent swelling significantly enhances sulfonic group incorporation, especially in TMPTA-based resins. Modeling reveals key structural differences and insights into degradation kinetics.

The detection and quantification of malathion, an organophosphate pesticide, in water and food samples were performed using a Cu electrode, based on current inhibition ratio measurements. The calibration curve was validated with three spiked samples. Additionally, machine learning algorithms were applied to electrochemical sensor data to predict unknown concentrations effectively.

A modified fractional-order PID controller is designed for a multivariable mixing tank system. Relative gain array analysis and simplified decoupler design are employed to reduce loop interactions. The proposed MFOPID controller achieves superior response with minimal control effort validating its efficacy particularly, for slow dynamic processes.

We carried out experiments and discrete element method simulations to study the flow behaviour of microcrystalline cellulose powders from pyramidal silos. The silos considered are of valley angle 42° and 30°. The studies included mass flow rate, average velocity of particles and segregation.

Mild steel corrosion is a significant challenge in process industries, particularly in environments containing chloride and alkaline conditions. This study investigates neem leaf extract as a viable green corrosion inhibitor for mitigating mild steel corrosion in an alkaline environment with chloride ions. Various studies confirm its effectiveness with inhibition efficiency reaching ∼78%.

A combination of risk analysis methods were applied. At fist, PSI documents were created. Then, a Semi-Quantitative HAZOP was conducted to identify potential hazards. FTA was used to make meaningful and quantify the results obtained from the scenarios. In final, a conceptual system was designed with active, passive, procedural and inherently safe design recommendations for safe mixer design.

This study demonstrates the preparation of paraffin/melamine-formaldehyde resin microPCMs via in situ polymerization for thermal control in TBPB synthesis. Under optimized conditions, microcapsules achieved 62.5% encapsulation rate. Adding 5 g microPCMs at 50 °C reduced peak reaction temperature from 58.3 °C to 50.3 °C, effectively suppressing thermal runaway. The results highlight the potential of phase change microcapsules in enhancing safety for semi-batch chemical processes through targeted temperature regulation.

The double salt (NH₄)₂Mg(SO₄)₂·6H₂O was synthesized and confirmed by TG-DSC and XRD. EtOH acts as an antisolvent, reducing solubility and increasing dissolution enthalpy. Nucleation follows second-order kinetics, with rate constants dependent on solvent composition.

How can logistics in the process industry keep pace with increasing market volatility and product diversity? This article presents a novel, simulation-driven planning approach and digital support system for modular logistics plants—enabling virtual scenario analysis, rapid decision-making before real-system implementation, and significantly reduced planning times in dynamic environments.