Science and Education in Karakalpakstan issn 2181-9203 Science Magazine chief editor

Science and Education in Karakalpakstan. 2023 №2/1 ISSN 2181-9203 
48 
Plasma-chemical technology for the decomposition of hydrogen sulfide opens up the 
possibility of creating a waste-free technology for the simultaneous production of gaseous sulfur 
and hydrogen. 
One of the main advantages of this technology is its high selectivity of impact on the 
molecules of environmentally harmful impurities. Wherein Both the simplicity of purification 
technologies, the combination of the reaction chamber with existing technological schemes, and the 
relatively low energy costs for the purification process are attractive. Compared to other 
electrophysical methods, cleaning using a streamer corona does not involve solving complex 
engineering problems of ensuring a high resource of an energy source - an electron accelerator or a 
radiation source in an aggressive environment of the gas being cleaned. The presence of only 
corona electrodes in the gas is an undoubted advantage of this purification method compared to 
other electrical methods. The simplicity of the design of the reaction chamber determines the easy 
scalability of the technology by changing the number and diameter of the reaction chambers. The 
physics of the purification process is such that it is possible to decompose practically any gaseous 
impurities in the air in the concentration range from tens to tens of thousands ppm [4]. 
In experimental works, there is a tendency to use a pulsed corona discharge with nanosecond 
pulses. The conducted studies show that the use of a pulsed corona discharge for the decomposition 
of environmentally harmful gaseous compounds, such as hydrogen sulfide, is promising. The 
method makes it possible to almost completely decompose hydrogen sulfide into elemental sulfur 
and hydrogen. 
The process is simple in hardware design and management. 
The operability of a nanosecond streamer discharge was proven in the plasma-chemical 
technology developed by us in an experimental laboratory form. The effectiveness was evaluated 
and the energy intensity and energy consumption of the proposed technology for the purification of 
associated petroleum gas from hydrogen sulfide with the production of elemental sulfur at the 
production facilities of OAO Tatneft were determined [5]. 
The schematic diagram of the laboratory setup is shown in Figure 1. 
A laboratory plant for the purification of associated petroleum gases from hydrogen sulfide 
with the production of elemental sulfur in the electric discharge of a streamer corona consists of 
the following main nodes [6-7]: 

unit for preparing a model gas mixture and supplying real gases; 

reactor assembly with streamer corona; 

nanosecond pulse generator unit; 

power unit, pulse transformer and ballast unit with voltage regulator; 

node for obtaining the final product - sulfur; 

sampling unit. 
The laboratory unit is a prefabricated structure assembled on a metal frame with dimensions 
of 1185x900x210 mm, made of steel profiles with a section of 20x20 mm and steel panels with a 
size of 500x610 mm. The frame over the entire area is covered with a screen made of organic glass 
to protect against electric shock. Also, the installation has a protection system for turning on the 
high-voltage generator with an uncovered screen. 
The main components of the installation are placed on steel panels, which can be 
conditionally divided into electric and gas parts. The main unit of the laboratory setup is the reactor. 
The streamer corona discharge reactor is designed to study on a laboratory scale the process of 
purification of associated gases from hydrogen sulfide into elemental sulfur in an electric discharge. 

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