Results 21 to 30 of about 217,547 (158)

Thermodynamic and Kinetic Considerations Regarding the Prospects for a Dual-Purpose Hydrogen Extraction and Separation Membrane

open access: yesEnergies, 2021
Extraction of hydrogen from hydrocarbons is a logical intermediate-term solution for the escalating worldwide demand for hydrogen. This work explores the possibility of using a single membrane to accomplish both the catalytic dehydrogenation and physical
Karl Sohlberg
doaj   +1 more source

Simultaneous Production of Aromatics and COx-Free Hydrogen via Methane Dehydroaromatization in Membrane Reactors: A Simulation Study

open access: yesMembranes, 2022
As an alternative route for aromatics and hydrogen production, methane dehydroaromatization (MDA) is of significant academic and industrial interest due to the abundance of natural gas resources and the intensive demand for aromatics and COx-free ...
Feng Ye   +7 more
doaj   +1 more source

Developing of Ethylene Glycol as a New Reducing Agent for Preparation of Pd-Ag/PSS Composite Membrane for Hydrogen Separation [PDF]

open access: yesJournal of Petroleum Science and Technology, 2012
In the present work, for the first time, a palladium-silver membrane has been prepared by electroless plating on the surface of a porous stainless steel disk by using ethylene glycol as a new reducing agent and polyol process.
L. Samiee   +3 more
doaj   +1 more source

Experimental Progress in the Development of a Metal Foil Pump for DEMO

open access: yesPlasma, 2023
Experimental findings to contribute to the preliminary design of a metal foil pump for fuel separation in the Direct Internal Recycling loop of the DEMO fusion device are presented. In parametric studies on a small-scale superpermeation experiment with a
Yannick Kathage   +8 more
doaj   +1 more source

Gas Permeability, Fractional Free Volume and Molecular Kinetic Diameters: The Effect of Thermal Rearrangement on ortho-hydroxy Polyamide Membranes Loaded with a Porous Polymer Network

open access: yesMembranes, 2022
Mixed-matrix membranes (MMMs) consisting of an ortho-hydroxy polyamide (HPA) matrix, and variable loads of a porous polymer network (PPN) were thermally treated to induce the transformation of HPA to polybenzoxazole (β-TR-PBO).
Cenit Soto   +7 more
doaj   +1 more source

Performance modeling of nano structure graphene membrane for hydrogen separation using CFD methods [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
Due to high energy consumption and pollution rate caused by fossil fuels, in the world, hydrogen has been considered by many researchers as a clean fuel. Therefore, process of hydrogen separation can also be very important in this regard.
Rahman Zeynali   +2 more
doaj   +1 more source

Gas Separation Silica Membranes Prepared by Chemical Vapor Deposition of Methyl-Substituted Silanes

open access: yesMembranes, 2019
The effect on the gas permeance properties and structural morphology of the presence of methyl functional groups in a silica membrane was studied. Membranes were synthesized via chemical vapor deposition (CVD) at 650 °C and atmospheric pressure ...
Harumi Kato   +5 more
doaj   +1 more source

Single-Atom Site Photocatalysts Boosting Organic Synthesis: The Integration of a Metal Active Site and Photosensitive Unit

open access: yesNanomaterials
Metallaphotoredox catalysis merges the powerful bond-forming abilities of transition metal catalysis with unique electron or energy transfer pathways accessible in photoexcited states, injecting new vitality into organic synthesis.
Haoyue Sun   +5 more
doaj   +1 more source

Insights into the application of microfluidic platforms in enhanced oil recovery

open access: yesPetroleum
Enhanced oil recovery (EOR) technologies are used to recover most of the trapped crude oil from our limited reserves. With the escalating energy demand, EOR will achieve substantial economic benefits and greatly help in the exploitation of natural oil ...
Fadi Dawaymeh   +3 more
doaj   +1 more source

Effect of Dehydration Temperature on the H2 Separation Potential of Hydroxy Sodalite Zeolite Membranes [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2015
The main goal of this work was to synthesize and evaluate the effect of dehydration temperature on the potential application of hydroxy sodalite zeolite membrane.
Mohammad Vaezi, Ali Akbar Babaluo
doaj   +1 more source

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