Results 61 to 70 of about 403,985 (285)

Supercritical Fluid Extraction From Priprioca: Extraction Yield And Mathematical Modeling Based On Phase Equilibria Between Solid And Supercritical Phases

open access: yes, 2015
This study aimed to investigate the supercritical carbon dioxide extraction of Cyperus articulatus L. (Priprioca). Before the experiments were performed, the raw material was cleaned, vacuum packed and maintained at -5 C.
Hatami T.   +3 more
core   +1 more source

Unveiling opportunities and challenges for a circular approach to macaúba biorefining: a technological roadmap

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The macaúba fruit, native to tropical and subtropical regions, has received considerable attention in recent years as a promising raw material for the production of advanced biofuels in Brazil. However, the development of large‐scale biomass requires overcoming significant challenges, such as designing circular biorefineries.
Fábio de A. Oroski   +3 more
wiley   +1 more source

THE USE OF SUPERCRITICAL FLUIDS IN PETROLEUM PROCESSING

open access: yesШәкәрім университетінің хабаршысы: Техника ғылымдар
Today, the world oil industry pays special attention to the development of new processing approaches, increasing energy efficiency and reducing operating costs. The review considers modern methods of heavy oil processing using supercritical fluids.
Y. I. Imanbayev   +4 more
doaj   +1 more source

Bioeconomy, sustainability, and digital technologies in Haematococcus lacustris biomass and astaxanthin production: advances and outlook

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Astaxanthin is a carotenoid with strong antioxidant properties, used in research on cancer treatment, ocular injuries, and neurological disorders. When produced by the microalgae Haematococcus lacustris, its antioxidant potential is even higher than that of the synthetic molecule, making it particularly attractive for pharmaceutical and ...
Renata Kühl Rocha   +5 more
wiley   +1 more source

Supercritical process technology related to energy and future directions - An introduction

open access: yes, 2015
Process technology comprises the application of fundamentals to processes, as for example phase equilibria and reaction kinetics, the verification of process steps, as for example in specific reactors, and the design of process sequences to produce a ...
Brunner, Gerd
core   +1 more source

Accelerating green heterocyclic synthesis: Convergence of AI, automation, and sustainable chemistry

open access: yesBulletin of the Korean Chemical Society, EarlyView.
Green heterocyclic synthesis and data‐driven tools such as AI, high‐throughput experimentation, continuous flow, and self‐driving laboratories have developed largely in parallel. This review connects them and asks how green metrics such as E‐factor and PMI might serve as explicit optimization targets rather than post‐hoc measures, toward sustainable ...
Noor Aisyah Ahmad Shah   +8 more
wiley   +1 more source

Numerical Comparison of Thermalhydraulic Aspects of Supercritical Carbon Dioxide and Subcritical Water-Based Natural Circulation Loop

open access: yesNuclear Engineering and Technology, 2017
Application of the supercritical condition in reactor core cooling needs to be properly justified based on the extreme level of parameters involved. Therefore, a numerical study is presented to compare the thermalhydraulic performance of supercritical ...
Milan Krishna Singha Sarkar   +1 more
doaj   +1 more source

When Two Dimensions Matter: A Critical Review of Recent Comprehensive Two‐Dimensional Gas Chromatography Applications in Food Analysis

open access: yesChemFoodChem, EarlyView.
Comprehensive two‐dimensional gas chromatography (GC×GC) is gaining importance in food analysis, particularly for volatile and aroma‐related compounds. This review examines recent applications across plant‐, animal‐, and other food matrices, revealing trends in sample preparation, column selection, modulation and detection, while highlighting ...
Ana Jano   +3 more
wiley   +1 more source

Supercritical Calorimetry: An Emerging Field

open access: yesCHIMIA, 2002
Calorimetry (adiabatic, isothermal, differential, oscillating or acoustic) is generally based on heat-flow measurements of the studied system. Most of its applications are dedicated to kinetic-parameter determination, safety studies and process ...
Frédéric Lavanchy   +2 more
doaj   +1 more source

Valorization of sugarcane biorefinery residues using supercritical water gasification: A case study and perspectives [PDF]

open access: yes, 2015
The present study evaluates the use of supercritical fluid technology, particularly supercritical water gasification (SCWG), to add value to residues from a sugarcane biorefinery that produces first and second generation ethanol.
Ensinas, Adriano V.   +17 more
core   +1 more source

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