Results 91 to 100 of about 5,807,105 (333)

Molecular Electrocatalysis Coupled With a Palladium Membrane Reactor Affords Selective Nitrogen Reduction [PDF]

Advanced science
A palladium membrane reactor delivers active hydrogen to homogeneous nickel terpyridine catalysts, which then selectively hydrogenate dinitrogen to ammonia. ABSTRACT Ammonia production is a cornerstone of modern industry and society, yet the conventional Haber–Bosch process accounts for nearly 2% of the global CO2 emissions. A promising and potentially
McKee M, Vangala S, Farzinpour F, Wagner J, Pugliese G, Heidarpour H, Bemana H, Estrada‐Ruiz J, Daniels J, Bismuto A, Seifitokaldani A, Kornienko N.   +11 more
europepmc   +2 more sources

Preliminary Physical and Thermal Design of a Small Chloride Salt Fast Reactor Based on Transmutation

Energies
A design for a small chloride salt fast reactor (sm-MCFR) is presented through the integration of molten salt reactor and small reactor technologies, targeting efficient transmutation of transuranic (TRU) elements in spent nuclear fuel and rapid reactor ...
Minyu Peng, Zhiquan Song, Yuhan Fan, Yang Zou, Yafen Liu, Rui Yan   +5 more
doaj   +1 more source

Stand-off nuclear reactor monitoring with neutron detectors for safeguards and non-proliferation applications

Nature Communications, 2019
Nuclear power reactors need to be monitored for safety and security while in operation. Here the authors discuss monitoring and safeguarding research reactors and small modular reactors using detection of neutrons up to a hundred meters away from the ...
B. M. van der Ende, L. Li, D. Godin, B. Sur   +3 more
doaj   +1 more source

Prognostics Health Management for Advanced Small Modular Reactor Passive Components [PDF]

, 2013
In the United States, sustainable nuclear power to promote energy security is a key national energy priority. Advanced small modular reactors (AdvSMR), which are based on modularization of advanced reactor concepts using nonlight- water reactor (LWR ...
Wootan, David, Hirt, Evelyn, Berglin, Eric, Coble, Jamie, Bond, Leonard, Mitchell, Mark, Meyer, Ryan, Ramuhalli, Pradeep, Henager, Chuck   +8 more
core  

Integrated Bipolar Membrane Electrodialysis and Electrolysis for CO2 Capture and Conversion

Advanced Energy Materials, EarlyView.
This work demonstrates an integrated BMEED platform that couples CO2 capture and conversion within a single modular system. By combining BMED with CO2E, high‐purity CO is produced while avoiding intermediate stripping, excessive capital and O&M costs, and external gas feeds.
Hyuck Joo Choi, Hakhyeon Song, Mohammed Tahmid, Hyeonuk Choi, Jihun Oh, Marta C. Hatzell   +5 more
wiley   +1 more source

Site Density Governs Switching Reactivity Regimes During Aerobic C─H Oxidation in Mn Single‐Atom Photocatalysts

Angewandte Chemie, EarlyView.
Increasing the density of isolated manganese (Mn) atoms in carbon nitride (CNx) photocatalysts does not continuously improve performance. Instead, beyond a critical loading, the polymer support reorganizes, altering charge‐carrier dynamics and oxygen activation while preserving atomic dispersion.
Viktoria Velichko, Agustín de Arriba, Areti Moutsiou, Elisabetta Inico, Andrea Olivati, Berta Pérez‐Román, Jesús López‐Sánchez, Ik Seon Kwon, Andrea Tonelli, Abhijit Roy, Valentina De Renzi, Raul Arenal, Annamaria Petrozza, Carlo Cavallotti, Gianvito Vilé   +14 more
wiley   +2 more sources

Small modular reactors (SMRs): Comparison of saturated versus superheated steam Rankine cycle under equal thermodynamic constraints

Nuclear Engineering and Technology
With part-load operation is increasingly becoming important issue for small modular reactors (SMRs), two secondary Rankine cycles for a 500 MWth pressurized-water-reactor small modular reactor were compared under identical thermodynamic constraints: a ...
Gyudong Kim, Yong Jae Chae, Takhyun Chun, Jeong Ik Lee   +3 more
doaj   +1 more source

Impact of reactor operation on success of struvite precipitation from synthetic liquors [PDF]

, 2007
A pilot scale reactor was designed and developed to study struvite crystallisation principles. The present work focuses on the possible impact of the reactor's operating parameters on struvite characteristics, and evaluates the performances of the ...
Hobbs, Phil, Valsami-Jones, E., Parsons, Simon A., Hobbs, P., Le Corre, Kristell S., Hobbs, P. J., LE Corre, K. S., Parsons, S. A., Valsami-Jones, Eugenia   +8 more
core   +1 more source

Modular design and supervisory control for enhanced economic resilience in continuous pharmaceutical manufacturing

AIChE Journal, EarlyView.
Abstract Conventional continuous plants use fixed‐capacity equipment, resulting in high capital risk and suboptimal performance under fluctuating demands. To address these, this study proposes an integrated framework for modular process design and supervisory control capable of adapting to demand uncertainty for long‐term economic viability.
T. Asrav, M. Alvarado‐Morales, G. Sin
wiley   +1 more source

Strategic analysis on sizing of flooding valve for successful accident management of small modular reactor

Nuclear Engineering and Technology
In contrast to all-time flooded small modular reactor (SMR) systems, an in-kind flooding safety system (FSS) has been proposed as a passive safety system applicable to small modular reactors (SMRs) that adopt a metal containment vessel (MCV).
Hyo Jun An, Jae Hyung Park, Chang Hyun Song, Jeong Ik Lee, Yonghee Kim, Sung Joong Kim   +5 more
doaj   +1 more source