Abstract
In 1971, it was decided to create a main unit for the production of helium in the processing of natural gas with a productivity of 3 billion m{sup 3} of helium per annum. The unit was intended to produce industrial high-purity helium as well as to separate the ethane fraction. The raw material for the production of these products was natural gas with a very low helium content (about 0.05%). The process of helium production is based on the liquefaction of the gas at low temperature. The design of the pilot plant for the preparation of the helium concentrate from the {open_quotes}poor{close_quotes} gas, being processed since 1978 at the Orenburg helium plant, is shown. The natural gas from which carbon dioxide and sulfur compounds have been removed, having a dew point of -10{degrees}C, proceeds at a pressure of 48-49 MPa and a temperature of +35{degrees}C to the drying block which consists of three adsorbers, two of which operate in the adsorption regime, while the third is being regenerated and cooled.
Published Version
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