EN
THE CORROSION CHALLENGE

Why Heat Recovery Equipment Fails

As flue gas temperatures decrease, acidic condensate forms on heat transfer surfaces. These condensates may contain:

  • ● Sulfuric Acid (H₂SO₄)
  • ● Sulfur Trioxide (SO₃)
  • ● Hydrochloric Acid (HCl)
  • ● Chlorides
  • ● Acid Mist
Over time, conventional metallic systems suffer severe corrosion, resulting in:
Reduced Equipment Life
Increased Maintenance
Frequent Shutdowns
Lost Heat Recovery Potential
CORROSIVE ENVIRONMENTS WE ADDRESS

Typical Applications

  • Acid Dew-Point Conditions

  • Sulfuric Acid Systems

  • Waste Acid Recovery

  • High-Humidity Flue Gas

  • Chemical Processing

  • Environmental Treatment

UNDERSTANDING ACID DEW-POINT CORROSION

The Critical Risk Zone

When flue gas temperatures fall below the acid dew point, sulfur compounds condense into highly corrosive acidic liquids.

Key Challenge

Recover more heat without exposing equipment to rapid corrosion.
MULTI-LAYER PROTECTION APPROACH

Beyond Material Selection

  • Corrosion-Resistant Surface

    Protects against acidic condensate and sulfur compounds.

  • Optimized Heat Transfer Design

    Maintains efficiency while minimizing corrosion risks.

  • Controlled Condensation Management

    Reduces localized attack and surface degradation.

  • Long Lifecycle Engineering

    Designed for years of reliable operation.

HOW THIS TECHNOLOGY IS APPLIED

Across the Entire Product Portfolio

  • Fluoroplastic Steel Economizers

    Deep Heat Recovery

  • Fluoroplastic Steel Air Preheaters

    Condensation Recovery

  • Fluoroplastic Steel Condensers

    Combuation Optimization

  • Fluoroplastic Steel Steam Heaters

    Industrial Heating

ENGINEERING VALUE

Why Corrosion Protection Matters

  • Extend Equipment Life

    Reduce premature replacement.

  • Improve Operational Reliability

    Minimize unexpected shutdowns.

  • Enable Deeper Heat Recovery

    Operate safely at lower temperatures.

  • Lower Lifecycle Costs

    Reduce maintenance and ownership costs.

Looking for Reliable Corrosion Protection in Heat Recovery Applications?

Discuss your flue gas composition, operating temperatures, and corrosion challenges with our engineering team.

Request Engineering Consultation