scholarly journals INVESTIGATION OF PLASMOCHEMICAL DISSOCIATION OF HYDROGEN SULFIDE IN INTENSIVE SWIRL FLOWS

2021 ◽  
pp. 107-110
Author(s):  
Z.O. Znak
Keyword(s):  
Hydrogen Sulfide ◽  
Gas Phase ◽  
Plasma Discharge ◽  
Ultrahigh Frequency ◽  
Rotor Speed ◽  
Pulsed Mode ◽  
Swirl Flows ◽  
Frequency Radiation

The process of plasmochemical decomposition H2S in a rotating reactor is studied. The generation of ultrahigh-frequency radiation in pulsed mode was synchronized with the rotation of the rotor. The influence of the rotor speed on the formation of the region of existence of a plasma discharge in the reactor and separation of H2S de-composition products are established. The content of hydrogen and hydrogen sulfide in the gas phase was analyzed at different points of the reactor along its radius. The concentration of H2 and H2S was determined by chromatog-raphy.

scholarly journals Hydrogen Sulfide Decomposition in Ultrahigh-Frequency Plasma

2009 ◽  
Vol 3 (4) ◽  
pp. 309-314
Author(s):  
Victor Yavorsky ◽  
◽  
Zenoviy Znak ◽  
Keyword(s):  
Hydrogen Sulfide ◽  
Hydrodynamic Model ◽  
Swirling Flow ◽  
Chemical Reactor ◽  
Plasma Discharge ◽  
Ultrahigh Frequency ◽  
Plasma Chemical ◽  
Plasma Chemical Reactor ◽  
Frequency Plasma

The effect of gas rate on the plasma discharge stability and energy values of hydrogen sulfide decomposition has been established in plasma chemical reactor. Processes taking place in a swirling flow of hydrogen sulfide during its plasmolysis have been analyzed. Plasmotrone basic hydrodynamic model has been suggested.

Performance of a compost and biochar packed biofilter for gas-phase hydrogen sulfide removal

2019 ◽  
Vol 273 ◽  
pp. 581-591 ◽  
Author(s):  
Jewel Das ◽  
Eldon R. Rene ◽  
Capucine Dupont ◽  
Adrien Dufourny ◽  
Joël Blin ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Gas Phase ◽  
Sulfide Removal ◽  
Hydrogen Sulfide Removal

The gas-phase photolysis of 2-methyl-1,3-butadiene at 123.6 nm

1984 ◽  
Vol 62 (9) ◽  
pp. 1731-1735
Author(s):  
Valerie I. Lang ◽  
Richard D. Doepker
Keyword(s):  
Nitric Oxide ◽  
Hydrogen Sulfide ◽  
Gas Phase ◽  
Quantum Efficiency ◽  
Hydrogen Iodide ◽  
Quantum Yields ◽  
Primary Decomposition ◽  
Radical Scavengers ◽  
Molecule Reaction ◽  
Reaction Channels

The gas-phase photolysis of 2-methyl-1,3-butadiene has been investigated using krypton (123.6 nm) resonance radiation. The observed neutral products of the primary decomposition were vinylacetylene, ethylene, acetylene, methylacetylene, propylene, allene, 2-methy-1-buten-3-yne, pentatriene/1-penten-3-yne, 1,3-butadiene, 2-butyne and butatriene, listed in decreasing order of concentration. There was also evidence of the presence of several radical fragments: CH2/CH3, C2H3, C3H3, and C4H5. Quantum yields for each of the products were determined in the photolysis of 2-methyl-1,3-butadiene, performed both in the presence and the absence of additives. Nitric oxide and oxygen were employed as radical scavengers, while hydrogen sulfide and hydrogen iodide were used as radical interceptors. Twelve primary, neutral molecule, reaction channels were proposed and the quantum efficiency assigned for each. The ionization efficiency of 2-methyl-1,3-butadiene was established as n = 0.55 at 10.03 eV. No products formed exclusively via an ion–molecule pathway were identified and therefore the fate of the C5H8+ ion was not determined.

Structure formation in diamond powder during chemical infiltration from the gas phase

2020 ◽  
pp. 61-68
Author(s):  
S. A. Eremin ◽  
I. A. Leontiev ◽  
Yu. M. Yashnov ◽  
V. N. Anikin
Keyword(s):  
Structure Formation ◽  
Gas Phase ◽  
Microwave Plasma ◽  
Diamond Powder ◽  
Plasma Discharge ◽  
Diamond Growth ◽  
Infiltration Process ◽  
Allotropic Modifications ◽  
Gas Pumping ◽  
Carbon Modifications

In this paper was investigated effect of pumping a mixture of methane and hydrogen in a microwave discharge through layers of diamond powder on structure formation sediment during chemical infiltration from the gas phase. The infiltration process was implemented on the conditions of gas pumping through the layers of diamond powder, in the presence of a plasma discharge over the samples. It is established that in contempt of the size of the diamond powder, the growth of diamond from the gas phase occurs on the surface of the first layer, the growth of diamond from the gas phase stops when the second layer starts, and different allotropic modifications of carbon start to grow, in particular nanocrystalline graphite, carbon nanotubes, and graphite. Such a rapid transition between diamond growth and the growth of various allotropic carbon modifications is related with the screening of the plasma discharge by the first layer of diamond powder. Thus, the absence of direct contact of the microwave plasma discharge with the formed molecular hydrogen during its recombination leads to the fact that the concentration of atomic hydrogen is low to maintain the growth of diamond from the gas phase inside the layer of diamond powder.

Methods of Assessing the Influence of Ultrashort Electromagnetic Pulses and Ultrahigh Frequency Radiation on Integrated Circuits

2015 ◽  
Vol 12 (1) ◽  
pp. 767-778
Author(s):  
Anarbayev Alibek Yersainovich ◽  
Antontsev Alexandr Vitalievich ◽  
Shaikhin Agibai Kaliakovich
Keyword(s):  
Integrated Circuits ◽  
Ultrahigh Frequency ◽  
Electromagnetic Pulses ◽  
Frequency Radiation
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