scholarly journals Highly Selective Deethylation of Rhodamine B on Prepared in Supercritical Fluids

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Yuzun Fan ◽  
Guoping Chen ◽  
Dongmei Li ◽  
Yanhong Luo ◽  
Nina Lock ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Supercritical Fluids ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Continuous Flow ◽  
Flow Reactor ◽  
Continuous Flow Reactor ◽  
Pure Phase ◽  
Degussa P25 ◽  
Supercritical Isopropanol

Pure phase anatase TiO2nanoparticles with sizes of 5–8 nm and varying crystallinity were synthesized in supercritical isopropanol/water using a continuous flow reactor. Their photodegradation of rhodamine B (RhB) was evaluated under visible light irradiation. The as-prepared TiO2nanoparticles show much higher photodegradation efficiencies than commercial Degussa P25 TiO2. Moreover, the photodegradation of RhB on the as-prepared TiO2follows a different process from that on P25 TiO2, quicker N-deethylation and slower cleavage of conjugated chromophore structure. Based on PXRD, TEM, and BET measurements, these two photodegradation properties have been explained by the physicochemical properties of TiO2.

Synthesis of Nano-sized Yttrium-Aluminum Garnet in a Continuous-Flow Reactor in Supercritical Fluids

2008 ◽  
Vol 63 (6) ◽  
pp. 756-764 ◽  
Author(s):  
Tadeusz Chudoba ◽  
Edward Lester ◽  
Witold Łojkowski ◽  
Martin Poliakoff ◽  
Jun Li ◽  
...  
Keyword(s):  
Supercritical Fluids ◽  
Continuous Flow ◽  
Yttrium Aluminum Garnet ◽  
Flow Reactor ◽  
Step Process ◽  
Continuous Flow Reactor ◽  
Yttrium Aluminum ◽  
One Step ◽  
Favorable Conditions ◽  
Helium Pycnometry

The conditions for obtaining pure yttrium-aluminum garnet (YAG) in a one-step process starting from components soluble in supercritical (SCR) liquids in a flow reactor have been studied. The powders were characterized using XRD, BET, SEM and helium pycnometry. Favorable conditions for YAG production were achieved using acetates (and acetylacetonates) in aqueous-alcoholic solutions as starting materials. Aqueous and alcoholic solutions of nitrates and aqueous solutions of acetates were found not appropriate as precursors for YAG production. The powders obtained had the shape of nano-sized cubes with diameters in the range 80 - 120 nm. After annealing at 600 °C the powders have comparable density as those made via a conventional precipitation-calcination route but differ from the calcinated products form soft agglomerates.

Renewable Energy from Agricultural Waste

2018 ◽  
Vol 69 (6) ◽  
pp. 1363-1366 ◽  
Author(s):  
Stefania Daniela Bran ◽  
Petre Chipurici ◽  
Mariana Bran ◽  
Alexandru Vlaicu
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Gas Chromatography ◽  
Continuous Flow ◽  
Laboratory Experiments ◽  
Fermentation Process ◽  
Flow Reactor ◽  
Agricultural Waste ◽  
Continuous Flow Reactor ◽  
Natural Support ◽  
Co2 Flow

This paper has aimed at evaluating the concentration of bioethanol obtained using sunflower stem as natural support, molasses as carbon source and Saccharomyces cerevisiae yeast in a continuous flow reactor. The natural support was tested to investigate the immobilization/growth of S. cerevisiae yeast. The concentration of bioethanol produced by fermentation was analyzed by gas chromatography using two methods: aqueous solutions and extraction in organic phase. The CO2 flow obtained during the fermentation process was considered to estimate when the yeast was deactivated. The laboratory experiments have highlighted that the use of plant-based wastes to bioconversion in ethanol could be a non-pollutant and sustainable alternative.

Thermocatalytic Hydrodeoxygenation and Depolymerization of Waste Lignin to Oxygenates and Biofuels in a Continuous Flow Reactor at Atmospheric Pressure

2020 ◽  
Vol 8 (35) ◽  
pp. 13195-13205 ◽  
Author(s):  
Swathi Mukundan ◽  
Daria Boffito ◽  
Abhijit Shrotri ◽  
Luqman Atanda ◽  
Jorge Beltramini ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Continuous Flow ◽  
Flow Reactor ◽  
Continuous Flow Reactor

scholarly journals Development of a tubular continuous flow reactor for the investigation of improved gas–solid interaction in photocatalytic CO2 reduction on TiO2

2019 ◽  
Vol 18 (2) ◽  
pp. 314-318 ◽  
Author(s):  
Martin Dilla ◽  
Ahmet E. Becerikli ◽  
Alina Jakubowski ◽  
Robert Schlögl ◽  
Simon Ristig
Keyword(s):  
Gas Phase ◽  
Continuous Flow ◽  
Flow Reactor ◽  
Tubular Reactor ◽  
Co2 Reduction ◽  
Continuous Flow Reactor ◽  
Reactor Geometry

Newly developed tubular reactor geometry allows intensive gas–solid interaction in photocatalytic gas-phase CO2 reduction.

Design of a novel continuous flow reactor for low pH viral inactivation

2017 ◽  
Vol 115 (3) ◽  
pp. 606-616 ◽  
Author(s):  
Stephanie A. Parker ◽  
Linus Amarikwa ◽  
Kevin Vehar ◽  
Raquel Orozco ◽  
Scott Godfrey ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Flow Reactor ◽  
Low Ph ◽  
Viral Inactivation ◽  
Continuous Flow Reactor

Stability of the first-generation Grubbs metathesis catalyst in a continuous flow reactor

2006 ◽  
Vol 691 (24-25) ◽  
pp. 5197-5203 ◽  
Author(s):  
Zenon Lysenko ◽  
Bob R. Maughon ◽  
Tezi Mokhtar-Zadeh ◽  
Michael L. Tulchinsky
Keyword(s):  
Continuous Flow ◽  
First Generation ◽  
Flow Reactor ◽  
Continuous Flow Reactor ◽  
Metathesis Catalyst
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