FIELD: gas industry.
SUBSTANCE: invention relates to processing of natural gas. Multi-stream production for processing natural gas comprises several identical operating process streams and one back-up process stream. Each stream consists of a unit for gas preparation for extraction of commercial products and semi-products, cryogenic unit for extraction of heavy hydrocarbon part of natural gas, starting from ethane, unit for cryogenic separation of light hydrocarbon part. In unit for cryogenic separation of light hydrocarbon part methane is used as a coolant. As a result of development of range of products is provided, consisting of methane fuel gas, ethane, wide fraction of light hydrocarbons, propane, butane, pentane-hexane fraction and helium concentrate. Additionally, production of liquefied natural gas is provided owing to that backup process stream is combined system of pipelines with operating process streams.
EFFECT: high efficiency and wider range of products.
3 cl, 3 dwg, 2 tbl
