Results 91 to 100 of about 237,313 (264)

The Use of Supercritical Fluid Extraction in Carrier Recovery from a Spent Active Carbon–Zinc Acetate Catalyst

open access: yesAdsorption Science & Technology, 2002
The present paper is aimed at showing the usefulness of supercritical fluid extraction in the removal of organic substances and zinc from the surface of a dangerous waste product, i.e. spent catalyst employed in the manufacture of vinyl acetate.
Lidia Dąbek
doaj   +1 more source

Innovative Approach to Recycle Lithium‐Ion Battery Electrolytes via Sequential Chemical Processes

open access: yesAdvanced Energy Materials, EarlyView.
A chemical separation method is developed to recycle and purify nonaqueous electrolytes from spent lithium‐ion batteries. The new process consists of a sequence of precipitation in tandem with each distillation and solvent‐assisted vacuum extraction to obtain high‐quality electrolyte precursors.
Ting‐Wei Hsu   +2 more
wiley   +1 more source

Characterization of ultrasonically extracted flaxseed polysaccharide gum and assessing its lipid‐lowering potential in a rat model

open access: yesFood Science &Nutrition, Volume 11, Issue 1, Page 137-147, January 2023., 2023
On the basis of current research it was suggested that FPG have anti‐hyperlipidemic potential. Still, the mechanism of actions of FPG as anti‐hyperlipidemic and other therapeutic potential have yet to be explored. Abstract Flaxseed polysaccharide gum (FPG) was extracted through the ultrasound‐assisted process using water as a solvent with a yield ...
Muhammad Nadeem Akhtar   +8 more
wiley   +1 more source

Sustainable Thermal Solutions: Enhancing Heat Transfer with Turbulators and Nanofluids

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Nanofluids, which are nanoparticle suspensions in base fluid, facilitate heat transmission due to their improved thermal conductivity. Turbulators, which are inserts into fluid flow channels, disturb the flow, increasing turbulence and hence the heat transfer rate.
Zafar Said   +9 more
wiley   +1 more source

Organic Electrolytes Recycling From Spent Lithium‐Ion Batteries

open access: yesGlobal Challenges, Volume 6, Issue 12, December 2022., 2022
Aged electrolytes inside spent lithium‐ion batteries consist of volatile organic solvents and toxic lithium salts, which can cause severe environmental pollution and safety issues without proper treatment. This review summarizes the reported methods to recycle aged electrolytes as well as achieve progress during industrial recycling technology and ...
Ruihan Zhang   +3 more
wiley   +1 more source

Response Surface Methodology for Optimization of Supercritical Fluid Extraction of Orange Peel Essential Oil

open access: yesPharmaceutical and Biomedical Research, 2020
Background: Orange peel essential oils were obtained using supercritical fluid extraction. This method is an important high scaling extraction method used for the extraction of plant and animal extracts.
Kiana Ghadiri   +3 more
doaj   +1 more source

The Environmental Emission and Climate Change Impact of Hydrogen Fuel Derived from Photocatalysis Water‐Splitting Reaction

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
In this works, life cycle analysis (LCA) of photocatalysis hydrogen synthesis reaction based on a pilot scale system is presented. Through the LCA, it is shown that majority of the carbon emission of the process is contributed by photocatalyst synthesis process and the use of sacrificial reagent in the photocatalytic hydrogen evolution reaction ...
Chloe Nelson   +2 more
wiley   +1 more source

Progress, Key Issues, and Future Prospects for Li‐Ion Battery Recycling

open access: yesGlobal Challenges, Volume 6, Issue 12, December 2022., 2022
The necessity for battery recycling, various Li‐ion battery recycling technologies including pyrometallurgical, hydrometallurgical, direct repair, and regeneration methods, and recycling strategies of solid‐state Li‐metal batteries are summarized and discussed.
Xiaoxue Wu   +5 more
wiley   +1 more source

Synthesis of Pt Carbon Aerogel Electrocatalysts with Multiscale Porosity Derived from Cellulose and Chitosan Biopolymer Aerogels via Supercritical Deposition for Hydrogen Evolution Reaction

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The synthesis of platinumcarbon aerogel electrocatalysts with multiscale porosity derived from biopolymer aerogels via supercritical deposition is presented. The electrocatalysts demonstrate similar overpotentials to commercial alternatives with significantly higher platinum loadings, while exhibiting superior stability due to enhanced porosity ...
Ala Alsuhile   +6 more
wiley   +1 more source

Exploring the Potential of Metal–Organic Frameworks for the Separation of Blends of Fluorinated Gases with High Global Warming Potential

open access: yesGlobal Challenges, Volume 7, Issue 1, January 2023., 2023
Four different metal–organic frameworks (MOFs) and one zeolite are studied for the adsorption of fluorinated gases and are evaluated for the separation of refrigerants with high global warming potential. The utilization of MOFs for these purposes is promising and by selecting materials with different porous characteristics and chemistries, it is ...
Julio E. Sosa   +8 more
wiley   +1 more source

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