Results 51 to 60 of about 3,486 (198)

Experimental Investigation of Characteristics of Sand Production in Wellbore during Hydrate Exploitation by the Depressurization Method

Energies, 2018
Sand production is the process in which formation sand and gravel would migrate into the wellbore by the flow of reservoir fluids. This is a significant problem that endangers the safety of hydrate exploitation.
Jingsheng Lu, Youming Xiong, Dongliang Li, Xiaodong Shen, Qi Wu, Deqing Liang   +5 more
doaj   +1 more source

Sustainable Palm Oil Extraction and Trends in the Use of Green Technologies: State‐of‐the‐Art and Future Directions

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Palm oil, which is extracted from the mesocarp of the fruit of the Elaeis guineensis Jacq. palm tree, is the most widely produced vegetable oil in the world. The extraction of this substance typically utilizes the conventional pressing method, a technique that is advantageous due to its low operating cost and simplified process.
Constantino Lucas Queta, Alessandra Lopes de Oliveira, Aline Silva Mello Cesar   +2 more
wiley   +1 more source

Swelling Behavior of a Crosslinked pHEMA Hydrogel in pH and Salt Environments

Journal of Applied Polymer Science, EarlyView.
The swelling behavior of non‐ionic crosslinked poly hydroxyethyl methacrylate (pHEMA) is investigated in alkaline, acidic, and electrolyte solutions. The swelling behavior is affected by crosslinker concentration, pH, swelling time, and specific Ion‐pHEMA‐water interactions.
Joey Aarts, Hartmut Fischer, Olaf Adan, Henk Huinink   +3 more
wiley   +1 more source

Demonstration of nanofiltration‐based virus safety for AAV manufacturing using model viruses

Biotechnology Progress, EarlyView.
Abstract Virus safety for biopharmaceutical products has been a well‐established concern for several decades. While various virus reduction steps have been identified and implemented for traditional plasma‐derived and monoclonal antibody products, there are various challenges to achieving the same virus safety in emerging gene therapy products.
Brian Buesing, Tomoki Igi, Daniel Strauss   +2 more
wiley   +1 more source

Experimental Study of Dust Behavior during Depressurization

Journal of Nuclear Science and Technology, 1992
A small amount of graphite dust is present in the primary cooling system of a graphite, moderated gas-cooled reactor during normal operation and condensable fission products may be absorbed on the dust. Since it is possible that the fission products are released with dust under the accident conditions such as depressurization events, they have a ...
SAWA, Kazuhiro, NISHIMOTO, Takeshi, MIYAMOTO, Yoshiaki   +2 more
openaire   +1 more source

Evaluation of Explosion Puffed Rice for Beer Production: Increased Wort Yield at the Cost of Filtration Performance

Cereal Chemistry, EarlyView.
ABSTRACT Background and Objectives Explosion puffing, a new pretreatment technology, was first applied to rice as a beer adjunct to replace conventional cooking and explore its potential to improve saccharification efficiency. Findings Explosion puffed rice exhibited reduced moisture, bulk density, starch, and fat, with a 5.37‐fold increase in ...
Qi Pan, Jiangyu Zhu, Yongqi Yin, Zhengfei Yang   +3 more
wiley   +1 more source

Depressurization of carbon dioxide in pipelines–Models and methods

Energy Procedia, 2011
AbstractA model for two-phase carbon dioxide transport with phase transfer in pipelines is presented. The stiffened-gas equation of state is used for calculating thermodynamical properties. The convergence and accuracy of two numerical methods–a centred multi-stage (MUSTA) scheme and an upwind Roe scheme–are compared.
Lund, Halvor, Flåtten, Tore, Munkejord, Svend Tollak   +2 more
openaire   +2 more sources

SO2 Transfer Enabled by an Easy‐to‐Handle Ionic Liquid

Chemistry – A European Journal, EarlyView.
Best of both worlds: The ionic liquid [NEt3Me][Cl(SO2)n] unites the atom economy and low cost of sulfur dioxide with the safety and applicability of common surrogates, streamlining SO2 transfer to access to 3‐sulfolenes, sulfonamides, and SuFEx reagents.
Johanna S. Sturm, Letizia Lanfredi, Severin Erbertseder, Marius Balizs, Patrick Voßnacker, Simon Steinhauer, Merlin Kleoff, Anja Wiesner, Niklas Limberg, Patrick Pröhm, Franz‐Lucas Haut, Sebastian Riedel   +11 more
wiley   +1 more source

An Analytical Design Model of a Vacuum Pressure Swing Adsorption Process for Biogas Upgrading

Chemie Ingenieur Technik, EarlyView.
A steady‐state model was developed for a vacuum pressure swing adsorption (VPSA) process comprising adsorption, depressurization, and evacuation steps. The resulting analytical plant design model provides the optimal adsorber height required to achieve a target product purity with maximum bed utilization.
Thomas Welter, Jan Mackel, Niklas Döring, Hilario Vidal   +3 more
wiley   +1 more source

Tri-Axial Shear Tests on Hydrate-Bearing Sediments during Hydrate Dissociation with Depressurization

Energies, 2018
A series of tri-axial shear tests were carried out to determine the stress and strain characteristics, as well as the volume deformation of methane hydrate-bearing sediments during gas hydrate dissociation.
Dongliang Li, Qi Wu, Zhe Wang, Jingsheng Lu, Deqing Liang, Xiaosen Li   +5 more
doaj   +1 more source