Method of online cleaning of heater exchangers

Methods of online cleaning of heat exchangers at elevated temperatures are provided. Cleaning of the heat exchanger is achieved through an increasing heat exchanger effluent temperature of a polymer solution together with operating under optimized process conditions provided by a phase diagram const...

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Bibliographische Detailangaben
Hauptverfasser:	Moebus, Joseph A, Buenemann, Allison C, Bryant, Ronnie D, Duvall, Philip M, Greenhalgh, Brian R, Duff, Benjamin C
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLEANING CLEANING IN GENERAL CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE ORHEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS HEAT EXCHANGE IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Methods of online cleaning of heat exchangers at elevated temperatures are provided. Cleaning of the heat exchanger is achieved through an increasing heat exchanger effluent temperature of a polymer solution together with operating under optimized process conditions provided by a phase diagram constructed for the polymer solution. The separation of polymer from unreacted monomers and solvent in the polymer solution is carried out by raising the temperature of the polymer solution as reactor effluent flowing through the heat exchanger. Then, subsequently and by reducing pressure of the heat exchanger effluent, the polymer solution separates into two liquid phases.