FIELD: thermal engineering. SUBSTANCE: unit has high-pressure natural gas line with heat exchanger and turboexpander connected by shaft with air compressor. The unit is provided with regeneration gas-turbine plant comprising combustion chamber, gas turbine, and regenerating heat exchanger installed at outlet. The heat exchanger is positioned upstream of the expander, and is connected to the regenerating heat exchanger. The gas-turbine plant is operatively connected to shaft linking the expander with compressor. EFFECT: enhanced efficiency in operation. 2 cl, 2 dwg
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