performance boiler cooling water metal passivation ... client presentation.pdf · a perfect...
TRANSCRIPT
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A Perfect Partnership Between Metal & Water
IntroducingPerformance
Boiler & Cooling WaterMetal Passivation Technologies
A Perfect Partnership Between Metal & Water
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ANODICSURFACE ACTIVE
POLYAMINE BARRIER PROTECTION
ทกุๆสตูรของ Anodamine ถกูพลติแหละสง่ออกโดย Anodamine Inc. Texas USA
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A Perfect Partnership Between Metal & Water
การป้องกัน Boilers, Cooling tower circuit เกดิจากการพสมของเคมี Polymers แหละ การจระจายของ Dispersants ทาํให้เคลือบผิวเหล็กได้เป็นอย่างดี แหละลดการการก่อสนิม
The formation of a highly tenacious, hydrophobic, magnetite containing protective barrier film on all exposed metal surfaces.
Chemical Characterization
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ป้องกันการเกดิสนิมใน สตมิ แหละ นํา ทอียู่ในระบบของโรงงาน
ป้องกันไม่ไห้เกดิการก่อตัวของตะกัวบนผิวเหล็ก
ใช่งานง่าย
Technical support and service
Purpose of Water Treatment
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• Key Performance Indicators• It is the goal of the Anodamine treatment program to achieve significant amounts of savings
in following areas;• Reduced use of fuel• Reduction in maintenance• Reduction of down‐time• Improved lifetime of plant• The KPI’s leading to above goals are:• Reduction / termination of corrosion by keeping the ratio of Fe2+ to Fe3+ at 1:2• Reduction of conductivity in boiler water leading to decreased requirement of blow‐down
volume• Improved temperature profile at stack reflecting overall increase of efficiency• Reduced blow down volume through setting adjustment of blow down intervals• Reduced scaling evidenced through visual inspection and reduced man hours required for
cleaning during maintenance cycle.• Extended life of pipe‐work, particularly in the boiler section evidenced through amount of
tube replacement.
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การกดักร่อน หรือ corrosion คือ การเสอืมสภาพของโลหะทีทําให้สมบตัิของโลหะ เปลยีนไปในทางเลวลง
โดยโลหะเปลยีนไปเป็นสารประกอบของโลหะหรือทีเรียกวา่สนิม ซงึเป็นผลติภณัฑ์ของการกดักร่อนเป็นเหตใุห้
โลหะเกิดความเสยีหาย ในแตล่ะปีโลกมีคา่ใช้จา่ย จากปัญหาการกดักร่อนมากมาย ทงัทีเป็นการซอ่มแซม
บํารุงรักษา หรือการรือใหมท่ดแทน
The Anodamine focus is based on terminating corrosion and in so doing terminating the source ofthe corrosion products known to foul boilers & exchangers.
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Fe Fe 2+ + 2 e‐(anodic reaction)
½ O2 + H2O + 2 e‐ 2 OH‐ (cathodic reaction)
Fe 2+ + 2 OH‐ Fe(OH)2 (formation rust)
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For corrosion of metal to take place, there must be:‐
1. An anode (เหลก็)2. A cathode (สารเคมี/สารสกปรกตา่งๆในนํา)
สนิมเหลก็แท้จริงแล้วคือสารประกอบระหวา่งเหลก็กบัออกซเิจน เมือมีเหลก็สมัผสักบันําและความชืน โดยจะคอ่ย ๆ สกึกร่อน กลายเป็นเหลก็ออกไซด์ หรือทีเรารู้จกักนัวา่ สนิม
เหลก็
วิธีการป้องกนัเหลก็ไมใ่ห้เกิดสนิมมีอยูห่ลายวิธีชงึยงัใช้กนัอยูท่กุวนันี คือการแยกออกซเิจนไมใ่ห้สมัพสักนัผิว
เหลก็โดยตรง
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Boiler operational at 29 bar
Phosphate treatment deviations
ฟอสเฟต + การกดักร่อนของผิวเหลก็
ฟอสเฟต + แมกนีไทท
=
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เคลือบผิวหนงัเหลก็ Anode ป้องกนัเหลก็จากปฎิกิริราออกซิเดชนัไมส่มัพสักนัออกซิเจน ไมม่ีการกดักร่อน เข้ากบัสงิแวดล้อมไมอ่นัตรายตอ่สงิแวดล้อม
OUR PERFORAMCE BENEFITS
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.
Reduced blow down of energy contained water up to80 % by no phosphate contained treatmentReduced fuel consumption up to 4 % by removing
scale and corrosion buildup in the boiler tubes.Reducedcorrosion and erosion in the water, steam
and condensate reticulation system up to 95 % by polyamine filming and pH bufferingReducedmake up water consumption by reduced
blowdownBetterheat transfer capability of condenser & heat
exchanger units by scale and corrosion build up removalBetter steam turbine efficiency by preventing mineral
carry overBetterenvironment and working conditions by utilizing
non poisonous chemical
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Any Chemical Programs Effectiveness
CAN ONLYBe Determined by
COMPLIANCEOR
NON COMPLIANCEWITH INTERNATIONAL CONTROLS
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A Perfect Partnership Between Metal & Water
0
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Time (minutes)
CWA Raw Water AnalysispH = 10.2Conductivity = 254 us/cmHardness = 69 ppmSilica = 2.52 ppmIron = 0.020 ppmChloride = 36 ppm
Maximum = 10.08 mpy
Minimum = 0.46 mpy
STD Deviation = 2.67 mpy
Linear Polarization Resistance Corrator® Corrosion Data on Raw Water (No Treatment) Probe ID: RW‐001: Probe Type 3 Electrode AnodicLinear Polarization Resistance Corrator® Corrosion Data on Raw Water (No Treatment) Probe ID: RW‐001: Probe Type 3 Electrode Anodic
Some fouling of the corrosion probes leads to a temporary reduction in corrosion but under deposit pitting corrosion increases
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A Perfect Partnership Between Metal & Water
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Linear Polarization Resistance Corrator® Corrosion Data on Softened Water (No Treatment) Probe ID: SW-001: Probe Type 3 Electrode AnodicLinear Polarization Resistance Corrator® Corrosion Data on Softened Water (No Treatment) Probe ID: SW-001: Probe Type 3 Electrode Anodic
Softened CWA Water Analysis
pH = 10.2Hardness = 0Conductivity = 254 us/cmSilica = 2.52 ppmIron = 0.020 ppmChloride = 25 ppm
Maximum = 11.77 mpyMinimum = 0.06 mpySTD Deviation = 3.60 mpy
Corrosion rate increases due to presence of residual brine in softened water
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A Perfect Partnership Between Metal & Water
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Maximum = 0.14 mpyMinimum = 0.01 mpySTD Deviation = 0.03 mpy
Linear Polarization Resistance Corrosion Data onSoftened Water + anodamine LPProbe ID: SW‐002: Probe Type 3 Electrode Anodic
Best Industry Standard
0.01– 0.02 mpy
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A Perfect Partnership Between Metal & Water
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Linear Polarization Resistance Comparative Corrosion Data Probe Type: 3 Electrode AnodicLinear Polarization Resistance Comparative Corrosion Data Probe Type: 3 Electrode Anodic
Raw Water
Softened Water
Softened Water + anodamine LP
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Softened CWA Raw CWA Water CWA Softened + anodamine
A Perfect Partnership Between Metal & Water
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IN PERTAMINA UP II DUMAi
TechnicalEvaluation
Performance Power Generation System & Refinery Plant1. Based on a report from operations engineer Scaling problem on steam chests at steam turbine & steam drive
pump have been removed 2. Base on test corrosion coupon in condensate line Polyamine completely protects from corrosion with 0 mpy
New Corrosion Coupon
Convention Treatment Technology ( 1426 hours)
•Metal Loss : 0,22 mills
• Corrosion Rate : 1,351 mills per year
• Deposit & loss Metal Oxide on metal surface
Anodamine Treatment Technology (1420 hours)
• Metal Loss : nil mills
• Corrosion Rate : nil mills per year
• Smooth Filming on magnetite surface
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IN PERTAMINA UP II DUMAiEconomic EvaluationIn the first three months application 1. Saving blow down Saving De‐mineralized Water : 5313 ton , Fuel Oil : 77.1 ton per month2. Saving cost due to reduced Blow down USD 15606 per month3. Due to shut down operation from dosing pump conventional technology in new plant, existing plant &refinery Saving power electric USD 7056 per month
TechnicalEvaluation
No. Parameter Unit TechnologyConventional Anodamine
1 pH 8.05 8.732 Specific Conductivity us/cm 9.4 43 Silicate ppm SiO2 0.078 0.012
Steam Quality
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Hydrazine addition (complete oxygen removal + phosphonate chelant)
START OF ACCELERATED CORROSION TEST
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After 10 minutes reaction time
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After 4 hours reaction time
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Accelerated Corrosion Test: START
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Duration of Test 1 hour
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Duration of Test 3 days
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Hydrazine & chelants with complete oxygen scavenging evidenced by formation of extensive magnitude of magnetic corrosion product oxides = 4 hours
anodamine with ZERO oxygen scavenging = 3 DAYS
ACCELERATED CORROSION TEST COMPARISON