REMOVAL OF HEAVY HYDROCARBONS FROM NATURAL GAS FLOW Russian patent published in 2016 - IPC C10L3/10 F25J1/00 F25J1/02 F25J3/02 F25J3/06 

FIELD: gas industry.

SUBSTANCE: invention relates to method of heavy hydrocarbons removing from initial natural gas flow. Method includes steps of: cooling of natural gas initial flow; introduction of cooled initial natural gas flow in gas-liquid separation system and separation of cooled initial natural gas flow to heavy hydrocarbon depleted natural gas steam flow, and fluid flow enriched with heavy hydrocarbons; heating heavy hydrocarbon-depleted natural gas steam flow; transmission of at least part of heavy hydrocarbon-depleted natural gas steam flow, through one or several layers of adsorption system for adsorption of heavy hydrocarbons to obtain heavy hydrocarbon-depleted natural gas flow; and cooling at least part of heavy hydrocarbon-depleted natural gas flow to obtain cooled heavy hydrocarbon-depleted natural gas flow. At that, heavy hydrocarbon-depleted natural gas steam flow, is heated, and at least part of heavy hydrocarbon-depleted natural gas flow, is cooled in economizer-heat exchanger by indirect heat exchange between initial heavy hydrocarbon-depleted natural gas steam flow, and at least part of heavy hydrocarbon-depleted natural gas flow. Invention also relates to the device.

EFFECT: disclosed invention allows better removal of heavy hydrocarbons from natural gas flows.

11 cl, 4 dwg, 2 tbl, 1 ex