Results 81 to 90 of about 2,200,535 (303)

Nanoarchitectonics of carbon molecular sieve membranes with graphene oxide and polyimide for hydrogen purification. [PDF]

RSC Adv, 2023
He W, Du J, Liu L, Sun Q, Song Z, Ma J, Cao D, Lim W, Hassan SU, Liu J.   +9 more
europepmc   +1 more source

Simple optimization method for partitioning purification of hydrogen networks

Egyptian Journal of Petroleum, 2015
The Egyptian petroleum fuel market is increasing rapidly nowadays. These fuels must be in the standard specifications of the Egyptian General Petroleum Corporation (EGPC), which required lower sulfur gasoline and diesel fuels.
W.M. Shehata, A.M. Shoaib
doaj   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Algal-Mediated Carbon Dioxide Separation in Biological Hydrogen Production

Energies
The production of hydrogen via dark fermentation generates carbon dioxide, which needs to be separated and re-utilized to minimize the environmental impact.
Natascha Eggers, Sachin Kumar Ramayampet, Torsten Birth-Reichert   +2 more
doaj   +1 more source

Hydrogen and Deuterium Solubility in Commercial Pd–Ag Alloys for Hydrogen Purification

ChemEngineering, 2017
Pd–Ag alloys with compositions close to 23–25% Ag are considered as a benchmark for hydrogen permeability. They are used in small scale reactors for hydrogen separation and purification. Permeability and solubility are strictly mathematically correlated,
Annalisa Paolone, Silvano Tosti, Alessia Santucci, Oriele Palumbo, Francesco Trequattrini   +4 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Author Correction: Fast hydrogen purification through graphitic carbon nitride nanosheet membranes. [PDF]

Nat Commun, 2022
Zhou Y, Wu Y, Wu H, Xue J, Ding L, Wang R, Wang H.   +6 more
europepmc   +1 more source

Refinery Hydrogen Network Management with Key Factor Analysis

Chemical Engineering Transactions, 2013
The increment of hydrogen demand in modern oil refineries motivates the industries to optimize the hydrogen network management and rationally use hydrogen sources for cost reduction and sustainable development.
C. Deng, W. Li, X. Feng
doaj   +1 more source