The article is devoted to the study of supersonic movement of natural gas in a pipeline and the possibility of developing new technological processes for cooling, drying and separating liquid hydrocarbons. Technological processes and a set of equipment created using the supersonic movement of natural gas are studied, their advantages and disadvantages are analyzed. It is known that a change in the process of gas injection into UGS facilities in a wide range of pressure during the season creates opportunities for more efficient use of compressor equipment. The thermobaric parameters of gas cooling due to supersonic motion in various designs have been calculated, and the existence of ample opportunities for creating new technological processes has been proved. Recommendations have been developed on the throughput capacity of gas installations to ensure the regulation of cooling systems created for underground gas storage facilities. It was noted that the cooling and gas separation systems created on the basis of thermobaric parameters and principles of regulation will be useful not only for underground gas storages, but also for other sub-sectors of the gas industry. Keywords: natural gas; supersonic movement; laval nozzle; underground gas storage; gas cooling; separation; compressor.

ChemInform Abstract The system specified in the title is investigated for the first time. Mixtures of the components are heated to 220 rc C in evacuated quartz ampoules for 800 h. The resulting samples are investigated by differential thermal, X-ray and mass spectrometric analyses. The microhardness and the density are determined for each of the samples. The phase diagram is constructed and the regions of glass formation are determined. Formation of a novel compound, Tl2As2Se3Te, is observed. This compound melts congruently at 415 rc C.

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