© kwr watercycle research institute 2011 - … savelkoul praktijk case dsm(1).pdf · © kwr...

© KWR Watercycle Research Institute 2011© KWR Watercycle Research Institute 2011

© KWR 2011

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Themadag Stoomplatform 27 jan 2011

De polyamine behandeling van midden en hogedruk stoomketels

Jo SavelkoulSenior Specialist Water Treatment & Corrosion

2© KWR Watercycle Research Institute 2011

About Jo Savelkoul

Consultant in Water Treatment & Corrosion

Bachelor studies in Chemistry and Environmental Science,Hogeschool , Heerlen (NL)

Employed in DSM-Stamicarbon 1961 -2004Specialist in Process Support & Control

1979-2004 Senior Specialist and Head of DSM Materials & Corrosion Water Laboratory


# Bedreigingen in MD/HD Stoomketels

#1- FAC (Flow Accelerated Corrosion/Erosie Corrosie)

#2 – FCC (First Condensate Corrosion/Condensatie Corrosie)

#3 - BTF (Boiler Tube Failures/Verdamperpijp Corrosie)

#4 – Vervuiling Turbines


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Classic Boiler Feed Water Quality Guidelines

-European Standard EN 12952-12 : 2003-European Guideline: VGB R 450 Le : 2004-British Standard: BS 2486:1997-ABMA: Boiler Water Requirements and Associated Steam Purity for

Commercial Boilers: 1998-ASME : CRTD-Vol.34 : 2001-EPRI : Consensus Guidelines........

Classic approach ! :

“Keep the water clean”


Root Cause Analysis of Boiler Tube Failuresonderzoek 1980 -1995 (Lit.*2)

Uitkomst

Heat Flux X Deposits = BTF

“If there is no deposit, there will be no damage” (B. Dooley, EPRI, 2004)

Modern approach ! :

“Keep the surface clean”


Polyamine beschermt het totale stoomsysteem tegen vervuiling en corrosie!

Praktische toepassingen van de polyamine behandeling in hogedruk (35 –125 bar) stoomketelssinds 1996


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#4 Oxide en zoutafzetting in stoomturbine (1987 - 1996) 80 bar 540 oC (Lit. *3)


#4 Turbine Performance before and after Poly Amine treatment (1996-heden) (Lit.*3)

Ste

am s

uctio

n ca

paci

ty t

/h

Start POAM Dosing

Cleaning Turbine


#1- FAC (Flow Accelerated Corrosion/Erosie Corrosie)Ketelvoedingwater, Stoom/condensaat, LP Boilers (Lit.*2)

Water en water/stoom

mengsels

100 oC – 200 oC !


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#2 – FCC(First Condensate Corrosion/Early Condensate Corrosion)

Turbines, Condensors/Reboilers (Lit.*4)

Condensatie van oververhitte stoom!


#3 ijzeroxide afzetting in verdamperpijp35 bar waterpijpketel agv FAC en FCC (Lit.*3)


#3 Verdamperpijpschade 35 bar waterpijpketel periode 1978-1996 (Lit.*3)


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#3 Verdamperpijpschade 125 bar stoomketelperiode 1980 – 2006 (Lit.*2, *4)


Kwaliteitsparameters polyaminebehandeling 125 bar stoom/turbinesysteem


Water Treatment Programms Tolerance(Prof. Dr. Albert Bursik, PPChem, 2004,6(9), 549-555)

BFW BW Tolerance towards Impurities

AVT(R) no ��

AVT(O) no ��

OT NaOH ��

AVT(R) NaOH ��

AVT(O) NaOH ��

AVT(R) Na3PO4

+ 1 mg · L–1 NaOH

��

AVT(O) Na3PO4

+ 1 mg · L–1 NaOH

��

Amine Polyamine, Polyacrylate, NaOH

��


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*Literatuur (Jo Savelkoul e.a.)

*1) Monitoring of First Condensate Corrosion (FCC) in Industrial Steam SystemsPowerPlant Chemistry 2001, 3(6), 326-330

*2) Corrosion Damage in Industrial Waste Heat Boilers (AICHE)Ammonia Safety Conference, Toronto, September 23-29, 2005

*3) Operational Experience with Organics in Industrial Steam GenerationPowerPlant Chemistry 2005, 7(12), 37-43

*4) Operational Experience with Polyamine in Ethylene Plant Steam GenerationPowerPlant Chemistry 2008, 10(12),696-707

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