scholarly journals A design of a fixed bed plasma DRIFTS cell for studying the NTP-assisted heterogeneously catalysed reactions

2020 ◽  
Vol 10 (5) ◽  
pp. 1458-1466
Author(s):  
Cristina Stere ◽  
Sarayute Chansai ◽  
Rahman Gholami ◽  
Kanlayawat Wangkawong ◽  
Amit Singhania ◽  
...  
Keyword(s):  
Methane Oxidation ◽  
Thermal Plasma ◽  
Fixed Bed ◽  
Plasma Drifts ◽  
Non Thermal Plasma

A newly developed DRIFTS cell for the in situ study of non-thermal plasma-assisted heterogeneously catalysed reactions is presented and evaluated using methane oxidation over a Pd/Al2O3 catalyst.

scholarly journals The Production of Methane, Acetone, “Cold” CO and Oxygenated Species from IsoPropyl Alcohol in a Non-Thermal Plasma: An In-Situ FTIR Study

2018 ◽  
Vol 122 (17) ◽  
pp. 4273-4284 ◽  
Author(s):  
Paul A. Christensen ◽  
Z. T. A. W. Mashhadani ◽  
Abd Halim Bin Md Ali ◽  
Michael A. Carroll ◽  
Philip A. Martin
Keyword(s):  
Thermal Plasma ◽  
Isopropyl Alcohol ◽  
In Situ Ftir ◽  
Ftir Study ◽  
Non Thermal Plasma

An in situ FTIR study of the plasma- and thermally-driven reaction of isopropyl alcohol at CeO2: evidence for a loose transition state involving Ce3+?

2019 ◽  
Vol 21 (3) ◽  
pp. 1354-1366 ◽  
Author(s):  
P. A. Christensen ◽  
Z. T. A. W. Mashhadani ◽  
Abd Halim Bin Md Ali ◽  
D. A. C. Manning ◽  
M. A. Carroll ◽  
...  
Keyword(s):  
Transition State ◽  
Thermal Plasma ◽  
Isopropyl Alcohol ◽  
In Situ Ftir ◽  
Thermal Reactions ◽  
Ftir Study ◽  
Thermally Driven ◽  
Non Thermal Plasma

This paper reports on the thermally-driven and non-thermal plasma-driven reaction of IsoPropyl Alcohol (IPA) on ceria (CeO2) with the aim to investigate the differences between plasma catalytic interactions and the analogous thermal reactions.

Decomposition of dichloromethane and in situ alkali absorption of resulting halogenated products by a packed-bed non-thermal plasma reactor

2011 ◽  
Vol 13 (3) ◽  
pp. 206-212 ◽  
Author(s):  
Shinsuke Iijima ◽  
Morito Nakamura ◽  
Akira Yokoi ◽  
Mitsuhiro Kubota ◽  
Liwei Huang ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Plasma Reactor ◽  
Packed Bed ◽  
Non Thermal Plasma ◽  
Alkali Absorption

scholarly journals Impact of the Framework Type on the Regeneration of Coked Zeolites by Non-Thermal Plasma in a Fixed Bed Dielectric Barrier Reactor

Catalysts ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 985
Author(s):  
Amir Astafan ◽  
Alexander Sachse ◽  
Catherine Batiot-Dupeyrat ◽  
Ludovic Pinard
Keyword(s):  
Thermal Plasma ◽  
Fixed Bed ◽  
Three Dimensional ◽  
Shape Selectivity ◽  
Acid Sites ◽  
Dielectric Barrier ◽  
Fau Zeolite ◽  
Ring Channel ◽  
Non Thermal Plasma ◽  
Coke Removal

The formation of coke as a result of propene transformation at 623 K on zeolites results from a product shape selectivity mechanism of which the products are polyaromatic molecules, such as pyrene on MFI, anthracene on MOR, pyrene and coronene on FAU. Zeolite regeneration can be achieved by using non-thermal plasma (NTP), with decreased energy consumption, employing a fixed bed dielectric barrier reactor. The efficiency of this alternative regeneration process depends on the coke toxicity. On MFI and FAU (featuring three-dimensional 10 and 12 ring channel systems, respectively) coking occurs by poisoning the Brønsted acid sites; on MOR, (presenting a one-dimensional 12 ring channel system) pore blocking takes place, leading to higher coke toxicity. A complete coke removal is achieved on MFI and FAU zeolites using NTP within 3 h, while for MOR coke, removal proceeds slower and is incomplete after 3 h on stream. Hence, the efficiency of regeneration is impacted by the accessibility of active oxygenated species generated under plasma (e.g., O*, O2+) to coke molecules.

Removal of Various Pollutants from Wastewater Using Plasma-modified Lignocellulose-derived as a Low-cost Adsorbent: an Overview.

2020 ◽  
Vol 17 ◽  
Author(s):  
Elie Acayanka ◽  
Jean-Baptiste Tarkwa ◽  
Brice Abia ◽  
Daouda Abia ◽  
Nzali Serge ◽  
...  
Keyword(s):  
Plasma Treatment ◽  
Thermal Plasma ◽  
Low Cost ◽  
Plasma Reactor ◽  
High Reactivity ◽  
Chemical Reagents ◽  
Hot Plasma ◽  
Non Thermal Plasma ◽  
Great Surface

: In their search for an alternative to commercial adsorbents, much research is turned to the local biomass-based materials such as agricultural residues and assimilated derivatives. However, natural biomass due to its low specific surface area must first undergo several pre-treatments. Among the newly emerging electric techniques for environmental applications, those who operate at atmospheric pressure (Non-thermal plasma) have recently found many breakthrough applications arising from their easy use with no extra additional reagents and their high reactivity. The Non-thermal plasma treatment of biomass is one of the promising developed approaches mainly due to significant effects including the formation of micro and macrospores, the increase of surface roughness, and surface functionalization. The most used plasma is non-thermal, so as not to denature the biomass, likewise the hot plasma can burn and/or destroy high contains carbon biomaterials. Especially, the gliding arc plasma obtained using moisten air as feeding gas, which is known to induce acidifying and oxidizing effects in an aqueous target. The primary species HO• radicals [E° (HO• /H2O) = 2.85 V/SHE] mainly formed in the arc will be with the dimer H2O2 [E°(H2O2/H2O) = 1.76 V/SHE] the determining agents for the chemical reactions induced. Exposure of a target to this kind of environment is likely to promote great surface transformations. This approach has some advantages: (i) the merit of not using commercial chemical reagents, the reactive species being in-situ generated; (ii) the risks related to the manipulation of the products, the plasma reactor is robust and can be modulated to treat large quantity; (iii) the efficiency of the bifunctionality of the plasma (acidifier and oxidative). In this review, we will spotlight the main changes induced by exposure of biomass to plasma treatment and also make a comparative study between chemically and plasma-activated materials in the removal of various pollutants from aqueous solution; and finally we summarize the findings in the existing literature.

scholarly journals Synergism between non-thermal plasma and photocatalysis: Implicationsin the post discharge of ozone at a pilot scale in a catalytic fixed-bed reactor

2019 ◽  
Vol 241 ◽  
pp. 227-235 ◽  
Author(s):  
Wala Abou Saoud ◽  
Aymen Amine Assadi ◽  
Monia Guiza ◽  
Sivachandiran Loganathan ◽  
Abdelkrim Bouzaza ◽  
...  
Keyword(s):  
Thermal Plasma ◽  
Fixed Bed ◽  
Pilot Scale ◽  
Fixed Bed Reactor ◽  
Post Discharge ◽  
Non Thermal Plasma

scholarly journals The Production of Ketene and C5O2 from CO2, N2 and CH4 in a Non-thermal Plasma Catalysed by Earth-Abundant Elements: An In-Situ FTIR Study

2018 ◽  
Vol 38 (3) ◽  
pp. 461-484 ◽  
Author(s):  
P. A. Christensen ◽  
Abd Halim Bin Md Ali ◽  
Z. T. A. W. Mashhadani ◽  
M. A. Carroll ◽  
P. A. Martin
Keyword(s):  
Thermal Plasma ◽  
In Situ Ftir ◽  
Ftir Study ◽  
Earth Abundant ◽  
Non Thermal Plasma
Sign in / Sign up

Export Citation Format

Share Document