Results 81 to 90 of about 85,294 (176)

SubcriticalWater – a Perspective ReactionMedia for Biomass Processing to Chemicals: Study on Cellulose Conversion as aModel for Biomass [PDF]

open access: yes, 2013
Biomass and water are recognized as a key renewable feedstock in sustainable production of chemicals, fuels and energy. Subcritical water (SubCW), or commonly referred as hot compressed water (HCW), is the water above boiling and below critical point (CP;
I. Pavlovič, M. Škerget, Ž. Knez
core   +2 more sources

Linseed (Linum usitatissimum) Oil Extraction Using Different Solvents

open access: yesFood Technology and Biotechnology, 2018
This work aims at characterizing linseed oil obtained using different extraction methods (hexane, subcritical propane and pressurized ethanol), and comparing the results with commercial linseed oil extracted by cold mechanical press method.
Guilherme Sabadin Piva   +5 more
doaj   +1 more source

Subcritical water technology for extraction phytochemical compound

open access: yesJournal of Medicinal Plants, 2017
To reduce the use of organic solvent, Subcritical water extraction has become a popular green extraction technology for production of phytochemicals from a variety of biomasses. Phytochemicals, such as phenolic component, essential oils and carbohydrates,
S khoshnoudinia, M Niakousari, Z Tahsiri
doaj  

Monastrol Synthesis Using Subcritical EtOH: Response Surface Method for Optimization [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
Monastrol is an Eg5 inhibitor that induces mitotic arrest and apoptosis. The efficiency of the Biginelli reaction for Monastrol synthesis can be enhanced by utilizing a subcritical EtOH.
Yousuf Karimi   +3 more
doaj   +1 more source

Structure of the zein protein as treated with subcritical water

open access: yesInternational Journal of Food Properties, 2018
In the present study, we investigated the structure and selected functional properties of zein protein as treated with subcritical water. The results showed that subcritical water treatment, with different time (20–120 min) and temperatures (110–170°C ...
Jixian Zhang   +6 more
doaj   +1 more source

In vitro cytotoxic activity of ginseng leaf/stem extracts obtained by subcritical water extraction

open access: yesJournal of Ginseng Research, 2014
Ginseng leaf/stem extract produced by subcritical water extraction at high temperature (190°C) possess higher cytotoxic activity against human cancer cell lines than ethanol extract. Subcritical water extraction can be a great candidate for extraction of
Kyoung Ah Lee   +3 more
doaj   +1 more source

Simulation of fuel distribution in the inner fast zone for two-zone subcritical reactor

open access: yesЯдерна фізика та енергетика, 2017
Investigations aimed for the optimization of fuel compositions for two-zone subcritical reactor are considered. The study of inner fast zone for two-zone subcritical reactor with homogeneous fuel concerning the geometrical, material and economical ...
V. I. Gulik
doaj  

Performance and Economic Analysis of Two Types of High-Temperature Heat Pump Based on New Refrigerants

open access: yesApplied Sciences
This paper proposes, for the first time, the research concept of comparing energy and economy between transcritical cycle high-temperature heat pumps and subcritical cycle high-temperature heat pumps with new refrigerants. Experiments and simulations are
Dahan Sun, Jiang Qin, Zhongyan Liu
doaj   +1 more source

Experimental comparison on the smoke movement in horizontal and downhill tunnel fires under subcritical ventilation

open access: yesCase Studies in Thermal Engineering
In longitudinally ventilated tunnel fires, subcritical ventilation is widely used in the early stage of accidents to maintain smoke stratification. Due to the stack effect, the smoke movement in inclined tunnels is different from that in horizontal ...
Haibin Wei   +6 more
doaj   +1 more source

Study on the Rule of Change of Reservoir Rocks under Subcritical Steam Effect

open access: yesEnergies
This paper examines the lithology, pore throat, and fluid characteristics of the reservoir in Liaohe Oilfield Block 3624, using group V rocks as an example, combining a high-temperature and high-pressure reaction still with other equipment such as a rock
Haifeng Li   +5 more
doaj   +1 more source

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