METHOD OF HEAT EXCHANGE SURFACE CLEANING SOLID PARAFFINS FROM RECUPERATIVE HEAT EXCHANGER INTEGRATED IN UNIT OF LOW-TEMPERATURE NATURAL GAS SEPARATION, AND AGGREGATE FOR METHOD IMPLEMENTATION

摘要

FIELD: heating.;SUBSTANCE: invention concerns gas processing industry, particularly methods of slaggy surface cleaning in heat exchange aggregates used in low-temperature separation of natural gas. Method is performed by steaming slaggy surface of recuperative heat exchanger by saturated water steam, with beginning and duration of steaming defined by two empiric equations. Aggregate for method implementation includes industrial boiler 1 connected over automatic valve of water steam inlet 3 to inlet line of high-pressure natural gas 4 to recuperative heat exchanger 7. Automatic valve of water steam 11 outlet is connected to outlet line of high-pressure natural gas 9 from recuperative heat exchanger. Additionally the aggregate includes automatic valves of high-pressure natural gas inlet 2 and outlet 10 from recuperative heat exchanger, and automatic valves of low-pressure natural gas inlet 8 and outlet 5 from recuperative heat exchanger.;EFFECT: reduced time of slaggy surface steaming, enhanced efficiency of low-temperature natural gas separation aggregate operation.;4 cl, 1 dwg, 1 tbl