Tackling a Core Problem in WtE operation

Chlorine-containing fuels in Waste-to-Energy plants generate alkali chlorides in the flue gas, which condense on boiler surfaces, causing highly adhesive fly ash, low-melting-point deposits, and severe tube corrosion. Traditional mitigation through waste chemistry offers limited, slow-acting protection. As boilers run hotter and cleaner requirements tighten, this issue becomes increasingly critical for plant uptime and longevity.

From Sticky Chlorides to Brush-Off Sulfates

In standard operation, sulfur from the waste leads to limited SO₂-driven sulfation – too slow to prevent aggressive chloride deposition. SulfGen™ instead generates SO₃ through targeted injection, initiating fast, complete sulfation of chlorides on particles and surfaces. Operators report deposit transformation: what once needed mechanical cleaning can now be wiped off manually during outages.

Tested, Proven, In Use for more 5 Years

SulfGen™ was developed by Joerg Krueger at the Klingele WtE plant in Weener, Germany. In full-scale operation for over five years using SRF (Secondary Recovered Fuel), the system has consistently delivered lower corrosion rates, reduced outage durations, and cleaner heat-transfer surfaces. Its field-proven reliability is a key reason SulfGen™ is gaining adoption in plants with high-chlorine or high-metal content fuels.