Results 41 to 50 of about 237,313 (264)

Chemical Recycling for Plastic Waste: Status and Perspectives 

open access: yesChemBioEng Reviews, Volume 9, Issue 6, Page 541-555, December 2022., 2022
The already well‐established industrial‐scale mechanical recycling of plastics has technical and economic limits. New goods for all areas of plastics application can be generated by chemical recycling processes. This review focuses on pyrolysis and solvolysis processes. The procedures and their most important features are described.
Arkadi Maisels   +2 more
wiley   +1 more source

Subcritical liquified dimethyl ether and supercritical fluid carbon dioxide extraction of gamma oryzanol from rice bran acid oil

open access: yesJournal of Agriculture and Food Research, 2023
Gamma oryzanol (γ-oryzanol) is a bioactive compound in rice bran acid oil, a by-product of the rice bran oil refining process that possesses various pharmacological properties.
Sudthida Kamchonemenukool   +3 more
doaj  

Modelling mass transfer from a packed bed by fluid extraction [PDF]

open access: yesInternational Journal of Heat and Mass Transfer, Volume 188, 1 June 2022, 122562, 2022
A mathematical model describing the erosion or leaching of a solid material by a flowing fluid in a column is developed. This involves an advection-diffusion equation coupled to a linear kinetic reaction describing the mass transfer between the solid and fluid.
arxiv   +1 more source

Supercritical Fluid Extraction - New progressive method in brewing analytics. Part I. - Theoretical principles of supercritical fluid extraction and examples of its use.

open access: yesKvasný průmysl, 2006
Supercritical fluid extraction (SFE) of liquid samples can be considered a new prospective method, which has not yet been utilized in the field of beer analysis. In the article, basic principles of supercritical fluid extraction are explained and a brief
Jiří ČULÍK   +6 more
doaj   +1 more source

Extraction of Astaxanthin and Lutein from Microalga Haematococcus pluvialis in the Red Phase Using CO2 Supercritical Fluid Extraction Technology with Ethanol as Co-Solvent

open access: yesMarine Drugs, 2018
Astaxanthin and lutein, antioxidants used in nutraceutics and cosmetics, can be extracted from several microalgal species. In this work, investigations on astaxanthin and lutein extraction from Haematococcus pluvialis (H. pluvialis) in the red phase were
A. Molino   +8 more
semanticscholar   +1 more source

Supercritical fluids and fluid mixtures to obtain high-value compounds from Capsicum peppers

open access: yesFood Chemistry: X, 2022
Peppers of the Capsicum genus have a rich nutritional composition and are widely consumed worldwide. Thus, they find numerous applications in the food, pharmaceutical and cosmetic industries. One commercial application is oleoresin production, a nonpolar
Ana Carolina De Aguiar   +5 more
doaj  

Applications of Supercritical Fluid Extraction (SFE) of Palm Oil and Oil from Natural Sources

open access: yesMolecules, 2012
Supercritical fluid extraction (SFE), which has received much interest in its use and further development for industrial applications, is a method that offers some advantages over conventional methods, especially for the palm oil industry.
Mohd Omar Ab Kadir   +5 more
doaj   +1 more source

The extraction of natural essential oils and terpenoids from plants by supercritical fluid [PDF]

open access: yesE3S Web of Conferences, 2021
In order to provide guidance for the improvement of supercritical fluid extraction technology in the extraction of natural volatile oil and terpenoids from plants, SFE was compared with steam distillation, solvent extraction, Soxhlet extraction, pressure
Liu Hua   +3 more
doaj   +1 more source

Numerical simulation of a comparative study on heat extraction from Soultz-sous-Forêts geothermal field using supercritical carbon dioxide and water as a working fluid [PDF]

open access: yesarXiv, 2022
Geothermal energy is an infinite energy source for the present human society. Energy extraction from the deep subsurface requires engineering using a working fluid that circulates between well doublet. Due to its thermal properties, CO2 is an ideal option as a heat transfer fluid.
arxiv  

Particle Formation by Supercritical Fluid Extraction and Expansion Process

open access: yesThe Scientific World Journal, 2013
Supercritical fluid extraction and expansion (SFEE) patented technology combines the advantages of both supercritical fluid extraction (SFE) and rapid expansion of supercritical solution (RESS) with on-line coupling, which makes the nanoparticle ...
Sujuan Pan   +3 more
doaj   +1 more source

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