FIELD: gas industry.
SUBSTANCE: method and system for complex removal of heavy hydrocarbons in liquefying system with a source of depleted natural gas are proposed. Economizer located between main cryogenic heat exchanger and phlegm collector-separator is provided for cooling overhead steam flow using partially condensed flow. Besides, the pressure of natural gas raw flow is maintained in scrubber pillar. The pressure drop is provided by a valve located between the economizer and phlegm collector-separator on a partially condensed flow removed from the cold end of the warm section of the main cryogenic heat exchanger.
EFFECT: technical result is an increase in liquefying efficiency.
19 cl, 6 dwg, 1 tbl
| Title |
Year |
Author |
Number |
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|
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|
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|
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