Results 291 to 300 of about 4,375,834 (381)
Hydrogen from Biogas: Dynamic Modeling of an Integrated Shift Reactor
Chemie Ingenieur Technik, EarlyView.A dynamic, two‐dimensional shift reactor model for the production of hydrogen from biogas is presented. This shift reactor enables the preheating of the biogas feed and, in parallel, reduces fixed‐bed temperatures, resulting in increased hydrogen yields. The model is validated with measurement data from a pilot biogas steam reforming plant.
Edwin Hirtreiter +5 more
wiley +1 more source
Antibacterial and antiviral activity of a highly efficient electrospun r‐PET nanofiber
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Since the COVID‐19 pandemic, the emergence of clean air has increased interest in developing antimicrobial air filters, targeting sterilization and public health concerns. Nanofibers are a promising approach due to their high efficiency in air filtration, while nanoparticles adhered to the fibre surfaces can improve safety due to the biocidal ...
Karine Machry +8 more
wiley +1 more source
Local sensitivity analysis of a supercritical extraction model
The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study investigates the process of chamomile oil extraction from chamomile flowers. A parameter‐distributed model, consisting of a set of partial differential equations, was used to describe the governing mass transfer phenomena between solid and fluid phases under supercritical conditions using carbon dioxide as the solvent.
Oliwer Sliczniuk, Pekka Oinas
wiley +1 more source
Natural wax supported by microporous biochar to create a stable phase change material
The Canadian Journal of Chemical Engineering, EarlyView.Beeswax and hardwood charcoal are combined to form a stable and biodegradable composite phase change material. Abstract Energy storage, exploiting the latent heat of phase change materials, offers an efficient method to store and release heat. Initial developments of phase change materials and their containment targeted performance over environmental ...
David Brassard +2 more
wiley +1 more source
Chemistry–Methods, EarlyView.A new methodology is presented to study the kinetics of the galvanic replacement reaction between silver and gold, allowing, for the first time to our knowledge, real‐time monitoring of the dynamics of this redox reaction by quantifying the main driving force, that is, the time‐ and concentration‐dependent redox potential, which cannot be captured by ...
Bonito Aristide Karamoko +2 more
wiley +1 more source
Anomalously cool clumped isotope temperatures in tropical lagoon carbonates
The Depositional Record, EarlyView.Carbonate clumped isotopes were used to reconstruct paleoclimate from lagoon sediments in the central tropical Pacific. Results were anomalously cool compared to modern measurements and other paleoclimate records. This study highlights the important of understanding carbonate facies and depositional environments in interpreting clumped isotope results.
D. A. Wyman‐Feravich +4 more
wiley +1 more source
Droplet, EarlyView.The time‐lapse evaporation of 1.0 µL droplets of strong‐flavor Baijiu (upper panel) and sauce‐flavor Baijiu (lower panel) is observed using a dark‐field phase annulus upright microscope. During evaporation, a noticeable phenomenon of particle assembly occurs, and as these particles move and deposit, they finally exhibit distinct Baijiu‐specific coffee ...
Zhi Zhang +14 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This paper presents an investigation of CO2 injection well damage evolution considering different injection temperatures and the presence of a pre‐existing defect. The main outcome is that the accurate prediction of well leakage risk requires characteristics such as initial defects to be understood and represented in any modeling efforts. Abstract This
Lee J. Hosking, Xiangming Zhou
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei +6 more
wiley +1 more source
Natural convection boiling of sodium in a simulated FBR fuel assembly subchannel
, 1979 P. W. Garrison +2 more
openalex +1 more source