Results 91 to 100 of about 20,321 (268)

Sustainable Oxygen: A low power approach for providing emergency medical oxygen for spacecraft and hospitals in developing countries [PDF]

, 2011
An oxygen concentrator targeting an 80% reduction in power demand over commercial systems is being developed using a pressure swing adsorption process.
Huff, Anndee L., Rhead, Evan, Thomas, Evan A., Zumr, Zdenek   +3 more
core   +2 more sources

On the Role of Linker Fluorination in the Adsorption‐Induced Structural Response of CeIV‐Based Metal‐Organic Frameworks

Chemistry – A European Journal, EarlyView.
The effect of the degree of fluorination of the organic linker on the adsorption behavior of MIL‐140A(Ce) is systematically investigated with a combination of experimental techniques. Cooperative adsorption is switched off in less fluorinated frameworks, as a result of reduced steric hindrance around the adsorption sites.
Francesca Nerli, Virginia Guiotto, Francesca Nardelli, Andrea Giovanelli, Linda Bizzarro, Federico Zizzi, Matteo Signorile, Marco Geppi, Lucia Calucci, Valentina Crocellà, Marco Lessi, Marco Taddei   +11 more
wiley   +1 more source

In Situ Methanation on Mars: A Process Concept Study on the Impact of H2/CO2 and Recycle Ratio

Chemie Ingenieur Technik, EarlyView.
The rocket propellant methane can be produced on Mars by in situ resource utilization. The H2/CO2 ratio is decisive, and excess H2 is favored for providing sufficient propellant purity. The operation mode—with or without recycling of unreacted reactants—depends on the resource availability of the selected landing site. Abstract For return missions from
Franz Braun, Thomas‐Oliver Nagel, Samuel Prinz, Jens Friedland, Robert Güttel   +4 more
wiley   +1 more source

Pure and binary adsorption of CO2, H2, and N2 on activated carbon [PDF]

, 2018
A new developing field of application for pressure swing adsorption (PSA) processes is the capture of CO2 to mitigate climate change, especially the separation of CO2 and H2 in a pre-combustion context.
Casas, Nathalie, Mazzotti, Marco, Pini, Ronny, Schell, Johanna   +3 more
core  

Integration of High‐p, Low‐T CO2 Electrolysis with Pressure Swing Adsorption Purification

Chemie Ingenieur Technik, EarlyView.
We evaluate a high‐p low‐T CO2 electrolysis (LTCE) cell with a pressure swing adsorption (PSA) to compare cascade vs. recycle operation. Although a cascade yields high CO selectivity but limited yield, a full recycle achieves near‐quantitative CO production, highlighting gas recycling as essential for LTCE/PSA systems.
Martin Peters, Supriya Bhaskaran, Franz Bommas, Kevinjeorjios Pellumbi, Ulf‐Peter Apfel, Kai junge Puring   +5 more
wiley   +1 more source

Research Progress of Pressure Swing Adsorption CO2 Capture Technology and Case Analysis of Its Application in Petrochemical Industry

南方能源建设
[Introduction] As an important carbon capture method in CCUS, pressure swing adsorption (PSA) CO2 capture technology has been widely used. However, the excessive capture energy consumption and operation cost restrict the promotion and implementation of ...
Qiang LIU, Jin XIAO, Hang YU, Haizhong LUO, Qingyang HE, Haizhou LIN, Rong XUE   +6 more
doaj   +1 more source

Potential Analysis of On‐Site Oxygen and Ozone Production for Wastewater Treatment Plants

Chemie Ingenieur Technik, EarlyView.
The potential of a power‐to‐gas process focusing on the oxygen stream to cover an upcoming demand of ozone at German wastewater treatment plants is analyzed. Economic and ecological parameters are compared to the conventional production of hydrogen and oxygen. Powered by on‐site produced wind energy, the process is deemed beneficial.
Vincenta Franßen, Paul Goerdten, Christian Hoffmann, Jens‐Uwe Repke   +3 more
wiley   +1 more source

The Potential of Liquefied Oxygen Storage for Flexible Oxygen-Pressure Swing Adsorption Unit

, 2021
Radek Šulc, Pavel Ditl
openalex   +2 more sources

Optimal model‐based design of experiments for parameter precision: Supercritical extraction case

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the process of chamomile oil extraction from flowers. A parameter‐distributed model consisting of a set of partial differential equations is used to describe the governing mass transfer phenomena in a cylindrical packed bed with solid chamomile particles under supercritical conditions using carbon dioxide as a solvent ...
Oliwer Sliczniuk, Pekka Oinas
wiley   +1 more source

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque, Niloofar Mozaffari, Louis Fradette, Serge Kaliaguine   +3 more
wiley   +1 more source